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Caterpillar C1.5 Engine

The Caterpillar C1.5 is a 15.8 L 6-cylinder turbocharged, air-to-air aftercooler engine rated at 1500 rpm, producing up to 447 kW. It powers generator sets from Atlas Copco and Caterpillar, including the XASE 1600, C15 and C15 Generator Set. It holds 60 L (15.9 gal) of oil and 77 L (20.3 gal) of coolant.

Also known as: Caterpillar C1.5

Part of the Caterpillar C1.5 engine family — 2 variants share parts & fitment.

15.8 L

Displacement

Cylinders

1500 rpm

Rated speed

447 kW

Gross power

On this pageSpecs Generator sets Maintenance FAQ Service intervals Torque & specs Fluids Fault codes Procedures Wiring

Engine specifications

Oil capacity	60.0 L
Coolant capacity	77.0 L
Displacement	15.8 L
Cylinders	6
Aspiration	Turbocharged, air-to-air aftercooler
Rated speed	1500 rpm
Gross power	447 kW

Generator sets powered by this engine

Shared across brands: Atlas Copco, Caterpillar

Atlas Copco XASE 1600Caterpillar C1.5 Caterpillar C15Caterpillar C15 Generator SetCaterpillar D13-4 Caterpillar EMCP 3

This engine also powers 1 machine(s) on Power Equipment Info.

How to read your Caterpillar engine serial & model number →

Common problems

Overspeed 1900
Unexpected Engine Shutdown — While the engine is running, if engine speed suddenly becomes zero and the Auto Start/Stop function block has not initiated a shutdown, an "UNEXPECTED ENGINE SHUTDOWN" event will be activated
Cause: A unexpected shutdown was caused by an occurrence known to the operator and the operator would like to put the genset back into service
Fix: Reset the genset. Resume normal operation and verify that the problem has been corrected
The battery is very warm to the touch.
Fix: Reduce the rate of charging by a signiﬁcant amount. Complete the charging at the reduced rate.
The battery emits smoke or a dense vapor (gas).
Fix: Reduce the rate of charging by a signiﬁcant amount. Complete the charging at the reduced rate.
Overheating of the generator too quickly
Fix: Do not heat the generator too quickly. Try to limit the rise in temperature of the insulation and windings to 11.11° C (20° F) per hour.
Localized overheating
Cause: Radiant ovens sometimes cause localized overheating.
Internal heating required
Cause: Generators are in damp environments and go for long periods of time without operation. Generators operate regularly in an environment with moisture laden air.
Fix: The electric space heaters should be installed as part of the generator.
Insulation resistance test failure
Fix: Heat the generator to approximately 75° C (167° F). Never exceed 75° C (167° F) until the insulation tester tests correctly for insulation resistance (at least 4 hours).
Insulation resistance below normal
Fix: Cleaning is advisable if heavy accumulations of dirt can be seen or if heavy accumulations of dust can be seen. If excess dirt is the cause of a restriction in the ventilation, cleaning is also advisable.
Insulation breakdown
Fix: An insulation breakdown requires repair. A high pressure wash is normally an effective way to clean windings. This includes windings that have been exposed to flooding or windings that have been contaminated by salt.
Dirt accumulation
Fix: Cleaning may be required at the point of installation. A vacuum cleaner should be used to pick up dry dirt, dust, and carbon. After most of the dust has been removed, a small brush may be attached to the vacuum hose in order to loosen dirt that is more firmly attached to the surface. Compressed air may be used to remove the remaining dust and dirt.
Circulating current needed
Fix: Drying can be accomplished by circulating low voltage current through the windings. Since the voltage is low, the breakdown of the insulation will not occur as the breakdown might have occurred with normal operation and wet insulation.
A strong odor of acid is present.
Fix: Reduce the rate of charging by a signiﬁcant amount. Complete the charging at the reduced rate.
Low Oil Filter Differential Pressure Shutdown 99 4
Low Fuel Level Warning 96 17

Compiled from service & troubleshooting documentation across every generator set that uses the Caterpillar C1.5.

Maintenance schedule

Item	Spec	Capacity	Part #	Interval
Air filter	Check air cleaner service indicator		—
Fuel filter			102326422		Amazon eBay
Oil filter	S•O•SSM oil analysis		—	30000 hr
Battery	Inspect, clean batteries		—	30000 hr
Belt			—	500 hr
Coolant			245-5829	3000 hr	Amazon eBay $98.00
Coolant filter			—
Oil	38L (40 quarts)	38.0 L	—	30000 hr
Spark plug	Replace air compressor filter (if equipped)		—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service intervals

Item	Action	Hours	Months	Notes
Zinc rods	Inspect	50 hr		First service — Within 24 hours of initially filling the plumbing with sea water; if no significant corrosion, inspect again after seven days or 50 hours of engine operation
Engine oil (S-O-S oil sample)	Test	125 hr		Severe service occurs at high loads, in high temperatures, and in dusty conditions
Battery Electrolyte Level	Check	250 hr	12 mo	Every 9500 L (2500 US gal) of fuel or 250 service hours or yearly
Belts	Replace	250 hr	12 mo	Every 9500 L (2500 US gal) of fuel or 250 service hours or yearly - inspect/adjust/replace
Coolant (S-O-S coolant analysis Level 1)	Test	250 hr		Cat ELC - Every 250 Hours; also the recommended sampling interval for all conventional heavy-duty coolant/antifreeze and for commercial coolants that meet Cat EC-1
Cooling System Supplemental Coolant Additive (SCA)	Test	250 hr	12 mo	Every 9500 L (2500 US gal) of fuel or 250 service hours or yearly - test/add
Cylinder Head Grounding Stud	Other	500 hr	12 mo	Every 9500 L of fuel or 250 service hours or yearly - tighten at every oil change
Electronics Grounding Stud	Inspect	250 hr		Every 14 400 L (3750 US gal) of Fuel or 250 Service Hours or 1 Year; inspect/clean/tighten
Engine Oil Sample	Other	250 hr		Every 14 400 L (3750 US gal) of Fuel or 250 Service Hours or 1 Year; obtain
Engine Oil Sample	Test	250 hr	6 mo	Every 250 Service Hours or 6 Months - Obtain
Engine Oil and Filter	Change	500 hr	12 mo	Every 9500 L (2500 US gal) of fuel or 250 service hours or yearly
Engine Valve Lash	Inspect	3000 hr		First service — Initial 250 Service Hours (or at first oil change); inspect/adjust
Engine Valve Rotators	Inspect	3000 hr		First service — Initial 250 Service Hours
Engine crankcase oil (S-O-S oil sample)	Test	250 hr		Table 6 S-O-S Oil Sampling Interval; severe applications may require a more frequent oil sampling interval
Fuel System Secondary Filter	Replace	500 hr	12 mo	Every 9500 L (2500 US gal) of fuel or 250 service hours or yearly
Fuel Tank Water and Sediment	Drain	250 hr	12 mo	Every 9500 L (2500 US gal) of fuel or 250 service hours or yearly
Hoses and Clamps	Inspect	250 hr	6 mo	Every 250 Service Hours or 6 Months - Inspect/Replace
Hoses and Clamps	Replace	250 hr	12 mo	Every 9500 L (2500 US gal) of fuel or 250 service hours or yearly - inspect/replace
Primary air filter element	Change	250 hr		When changing the primary element at 250 operating hours (basis of the without-indicator filter-change comparison)
Radiator	Clean	250 hr	12 mo	Every 9500 L of fuel or 250 service hours or yearly
Rotating Rectifier	Check	250 hr	12 mo	Every 9500 L of fuel or 250 service hours or yearly
SCA (Supplemental Coolant Additive) concentration	Test	250 hr		Test the concentration of SCA or submit a coolant sample at 250 hour intervals or at PM Level 1 intervals; check at every oil change or every 250 hours, whichever occurs first
Starting Motor	Inspect	250 hr		Every 250 Service Hours
Coolant (S-O-S coolant analysis Level 2)	Test	500 hr	12 mo	First service — For new systems, refilled systems, and converted systems that use Cat ELC or Cat DEAC; also every year; use the interval that occurs first
Cooling System Coolant Sample (Level 1)	Test	500 hr		Every 500 Service Hours; obtain
Cooling System Coolant Sample (Level 2)	Test	500 hr	12 mo	First service — Initial 500 Hours (for New Systems, Refilled Systems, and Converted Systems); obtain
Fuel System Primary Filter (Water Separator) Element	Replace	500 hr	12 mo	Every 500 Service Hours or 1 Year
Turbocharger	Inspect	500 hr		Every 500 Service Hours
Water Pump	Inspect	500 hr		Every 500 Service Hours
engine	Other	500 hr		Cat compact diesel lineup offers 500-hour maintenance intervals and single-side service access
oil	Change	500 hr		3000 Series service intervals increased to 500 hours as standard (3013C, 3024C, 3054, 3056)
Secondary air filter element	Change	750 hr		When changing the secondary element at 750 operating hours (basis of the without-indicator filter-change comparison)
Bearing (Ball)	Lubricate	2000 hr		Every 2000 service hours
Engine Crankcase Breather	Clean	2000 hr	12 mo	Every 2000 service hours or 1 year
Insulation	Test	2000 hr	6 mo	Every 2000 service hours or 6 months
Stator Lead	Check	2000 hr	6 mo	Every 2000 service hours or 6 months
Aftercooler Core	Clean	3000 hr		Every 114 000 L (30 000 US gal) of Fuel or 3000 Service Hours; clean/test
Cooling System Coolant (DEAC)	Change	3000 hr	36 mo	Every 3000 Service Hours or 3 Years
Cooling System Coolant Extender (ELC)	Other	3000 hr		Every 3000 Service Hours or 3 Years; add
Cooling System Water Temperature Regulator	Replace	3000 hr	36 mo	Every 3000 Service Hours or 3 Years

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Coolant level below bottom of filler pipe	13	mm (0.5 inch)	engine stopped and cool
Clearance	Coolant level below bottom of filler pipe / below sight glass level	13	mm	engine stopped and cool
Clearance	Damper pilot runout limit	0.10	mm	vibration analysis
Clearance	Unit injector height (from top of unit injector to machined ledge of fuel injector body)	78.0 ± 0.2	mm
Gap	Speed sensor air gap adjustment (back off after contact)	270	degrees (three-fourths turn)	counterclockwise
Other	Accelerator pedal position sensor duty cycle at high idle	75 to 90	percent	high idle
Other	Accelerator pedal position sensor duty cycle at low idle	10 to 22	percent	low idle
Other	Air cleaner service indicator reset attempts before replacement	3	pushes
Other	Bearing grease quantity per shielded ball bearing	53.28 to 59.20	mL (1.8 to 2.0 ounces)
Other	Coolant level below filler pipe	13	mm	maintain within; or sight glass
Other	Cooling system fill rate	19	L/min	no faster than
Other	Cooling system fill rate, maximum	19	L/min	to avoid air locks
Other	Engine monitoring derate maximum rate	10	percent per second	warning/derate graph
Other	Engine speed/timing sensor calibration tolerance (primary vs secondary)	3	degrees	0022-11 / 0022-13
Other	Gross Input Torque (TH55-E70)	12 667	N•m (9350 lb-ft)
Other	Gross Input Torque (TH55-E90)	12 677	N•m (9350 lb-ft)
Other	Radiator cooling package design ambient temperature	48.9	°C (120° F)	with 50/50 water/Extended Life Coolant mixture
Other	Radiator cooling package maximum elevation	1524	m (5000 ft)	with 50/50 water/Extended Life Coolant mixture
Other	SCA test drops for recommended concentration	25 to 30	drops	8T-5296 Coolant Conditioner Test Kit
Other	Stall Torque Ratio (TH55-E70)	2.23
Other	Stall Torque Ratio (TH55-E90)	2.23
Other	Supplemental coolant additive concentration (coolant/antifreeze)	6	percent	maximum
Other	Supplemental coolant additive concentration (water and SCA)	8	percent	maximum
Other	VCI oil concentration	3	percent	0.9 L of 4C-6792 VCI oil treats 28.4 L of engine oil
Other	Vibration amplitude limit (acceptable engine performance)	4.0	mils	engine vibration measurement
Pressure	Aftercooler cleaning air pressure	205	kPa	maximum less than, at nozzle
Pressure	Aftercooler cleaning water pressure	275	kPa	maximum less than
Pressure	Air cleaner element cleaning, maximum air pressure	207	kPa
Pressure	Air cleaner service indicator restriction	762 ± 6	mm H2O
Pressure	Allowed difference between pressure gauge and Cat ET status screen	35	kPa	engine running
Pressure	Boost pressure with engine OFF	0	kPa	key switch ON, engine OFF
Pressure	Engine oil pressure default when sensor code active (0100-03 / 0100-04)	600	kPa	engine not running or coolant greater than 38 C
Pressure	Fuel system primary filter/water separator element change pressure	50 to 70	kPa
Pressure	Fuel system primary filter/water separator vacuum gauge change point	50 to 70	kPa	if vacuum gauge installed
Pressure	Low Engine Oil Pressure Shutdown Event Threshold (factory default)	34	kPa (5 psi)	default
Pressure	Low Engine Oil Pressure Warning Event Threshold (factory default)	160	kPa (23 psi)	default
Pressure	Maximum air pressure at nozzle for cleaning purposes	205	kPa
Pressure	Maximum air pressure for cleaning	205	kPa (30 psi)
Pressure	Maximum air pressure for cleaning purposes (deadheaded air nozzle with chip guarding and PPE)	205	kPa
Pressure	Maximum air pressure for cleaning purposes (deadheaded air nozzle with chip guarding and PPE)	30	psi
Pressure	Maximum water pressure for cleaning	275	kPa (40 psi)
Pressure	Maximum water pressure for cleaning purposes	275	kPa
Pressure	Maximum water pressure for cleaning purposes	40	psi
Pressure	Maximum water pressure for radiator cleaning	275	kPa
Pressure	Radiator cleaning air pressure	205	kPa	maximum less than, at nozzle
Pressure	Radiator cleaning water pressure	275	kPa	maximum less than
Pressure	Unit injector fuel injection pressure	1240	bar (18 000 psi)
Pressure	WS255 pump plunger load	238,000	lb (107,960 kg)
Pressure	WS273XD pump plunger load	275,000	lb (124 738 kg)
Pressure	WS305XD pump plunger load	250,000	lb (113 398 kg)
Resistance	Engine speed potentiometer resistance	0 to 100	ohms	adjustable
Resistance	Engine speed potentiometer resistance (terminals 11 and 12, 2301A Governor)	0 to 100	ohms	adjustable
Resistance	Exciter armature (rotor) winding (L2)	less than 0.1	ohm
Resistance	Exciter field (stator) winding (L1)	approximately 3.0 to 6.0	ohms	winding at room temperature
Resistance	Insulation resistance, minimum (generators below 1000 V)	1	megohm
Resistance	Main armature (stator) winding (L4)	less than 0.1	ohm
Resistance	Main field (rotor) winding (L3)	approximately 0.75 to 2.0	ohms	winding at room temperature
Resistance	Minimum insulation resistance, main stator	1	megohm
Resistance	Minimum insulation resistance, other windings	100,000	ohms
Resistance	Pilot exciter armature winding (L5)	less than 0.1	ohm

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Ambient	Capacity	Notes
Coolant	50/50 mixture water/Caterpillar Extended Life Coolant		below 48°C		Radiator cooling packages designed for up to 48.9° C (120° F) ambient; coolant sump refill capacities vary by oil sump/pan (18 L to 106 L service refill with new oil filter change)
Coolant	Cat DEAC				Diesel; 3,000 Service Hours or Three Years; annual S·O·SSM Level 2 coolant sampling and analysis
Coolant	Cat DEAC (Diesel Engine Antifreeze/Coolant)				Conventional coolant; SCA required, do not exceed 6 percent SCA concentration (8 percent for water and SCA)
Coolant	Cat ELC				Diesel; 12,000 Service Hours or Six Years; add Cat ELC Extender at 6,000 service hours or one half of service life; annual S·O·SSM Level 2 coolant sampling and analysis
Coolant	Cat ELC (Extended Life Coolant)				Do not use conventional SCA with Cat ELC; add Cat ELC Extender once
Coolant	Cat NGEC				Natural Gas; 16,000 Service Hours or Three Years; use interval that occurs first
Coolant	Cat SCA (Supplemental Coolant Additive) with water				SCA concentration in a cooling system that uses SCA and water should be six to eight percent by volume; do not exceed the eight percent maximum concentration. If Cat SCA is not used, the commercial SCA must provide a minimum of 2400 mg/L or 2400 ppm (140 grains/US gal) of nitrites in the final coolant mixture when used with water, and a minimum of 1400 mg/L or 1400 ppm (82 grains/US gal) with heavy-duty coolant/antifreeze.
Coolant	Commercial heavy-duty coolant/antifreeze
Coolant	Commercial long life coolants meeting Caterpillar Engine Coolant Specification -1 (Caterpillar EC-1)	Cat EC-1
Coolant	Glycol (ethylene glycol / propylene glycol)	Propylene glycol coolant must meet ASTM D6210-04			Ethylene glycol: 50 percent = freeze protection -37 C (-34 F), boil protection 106 C (223 F); 60 percent = -52 C (-62 F), 111 C (232 F). Propylene glycol: 50 percent = -32 C (-26 F), 106 C (223 F). Do not use propylene glycol in concentrations that exceed 50 percent; do not use ethylene glycol in concentrations that exceed 60 percent. All Caterpillar diesel engines equipped with air-to-air aftercooling (ATAAC) require a minimum of 30 percent glycol.
Coolant	Supplemental Coolant Additive (SCA) and water	6% to 8% SCA concentration			For stationary applications with no anti-boil or freeze protection; ATAAC requires minimum 30 percent glycol
Engine oil	Cat DEO (Diesel Engine Oil) 10W-30 and 15W-40	Cat ECF-1 (exceeds); API CI-4, API CI-4 PLUS, API CH-4, API CG-4, API CF (Cat DEO SAE 15W-40)			Caterpillar oils are used to fill diesel engines at the factory. Non-Caterpillar commercial oils are second choice oils. Do not use API CF-4 oils in Caterpillar diesel engines. Do not use single grade API CF oils or multigrade API CF oils in 3500 Series, C175 Series and smaller DI diesel engines.
Engine oil	Cat NGEO				Natural Gas
Engine oil	Commercial oils (DI engines)	Cat ECF-1 required; API CG-4 multigrade acceptable; API CH-4, API CI-4 and API CI-4 PLUS acceptable only if the requirements of Cat ECF-1 are met; do not use API CF-4 oils			Minimum TBN must be 10 times the fuel sulfur level (ASTM D2896); minimum TBN of the oil is 5 regardless of a low fuel sulfur level. API CG-4 oils: do not exceed the standard oil drain interval.
Engine oil	Commercial oils (PC engines)	Cat ECF-1; API CH-4, API CI-4, API CI-4 PLUS (if Cat ECF-1 requirements met); API CG-4 multigrade; API CF-4 multigrade; API CF			Minimum TBN of the oil that is used in PC engines must be 20 times the fuel sulfur level; minimum TBN of new oil is five. Change the oil when the TBN deteriorates to 50 percent of the original TBN.
Engine oil	Re-refined base stock oils				Acceptable if they meet the performance requirements specified by Caterpillar; filtering is inadequate for producing high quality re-refined base stock oils.
Engine oil	Synthetic base stock oils				Acceptable if they meet the performance requirements specified for the engine compartment. Caterpillar does not recommend the automatic extension of oil drain intervals for any type of oil.
Engine oil	low sulfated ash oil				Required for U.S. EPA Tier 4 Final, EU Stage IV engines.
Engine oil	Cat Arctic DEO SYN SAE 0W-30		-40°C to 30°C		Engine Crankcase; Industrial Engines
Engine oil	SAE 0W-20		-40°C to 10°C		Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines)
Engine oil	SAE 0W-30		-40°C to 30°C
Engine oil	SAE 0W-40	Cat DEO	-40°C to 40°C		Use highest available viscosity for start-up temperature
Engine oil	Cat DEO SYN SAE 5W-40		-30°C to 50°C		Engine Crankcase; Industrial Engines
Engine oil	SAE 5W-30		-30°C to 30°C		Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines)
Engine oil	SAE 5W-40		-30°C to 50°C
Engine oil	Cat DEO SAE 10W-30		-18°C to 40°C		Engine Crankcase; Industrial Engines
Engine oil	SAE 10W-30	Cat DEO	-18°C to 40°C
Engine oil	SAE 10W-40		-18°C to 50°C		Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines)
Engine oil	Cat DEO SAE 15W-40		-9°C to 50°C		Engine Crankcase; Industrial Engines
Engine oil	SAE 15W-40	Cat DEO; exceeds API CI-4, CH-4, CG-4, CF-4, CF and ECF-1	-9°C to 50°C	60.0 L	Cat DEO Multigrade recommended

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Fault codes

Code	Name	Meaning	Severity	Action
0001-11	Cylinder #1 Injector current fault	The ECM detects a low current condition (open circuit) in the No. 1 cylinder injector solenoid wiring or a high current condition (short circuit) in the injector solenoid. Flash code 72.	Warning	Perform "Injector Solenoid Circuit - Test"
0002-11	Cylinder #2 Injector current fault	Low current (open circuit) or high current (short circuit) in the No. 2 cylinder injector solenoid. Flash code 72.	Warning	Perform "Injector Solenoid Circuit - Test"
0003-11	Cylinder #3 Injector current fault	Low current (open circuit) or high current (short circuit) in the No. 3 cylinder injector solenoid. Flash code 73.	Warning	Perform "Injector Solenoid Circuit - Test"
0004-11	Cylinder #4 Injector current fault	Low current (open circuit) or high current (short circuit) in the No. 4 cylinder injector solenoid. Flash code 73.	Warning	Perform "Injector Solenoid Circuit - Test"
0005-11	Cylinder #5 Injector current fault	Low current (open circuit) or high current (short circuit) in the No. 5 cylinder injector solenoid. Flash code 74.	Warning	Perform "Injector Solenoid Circuit - Test"
0006-11	Cylinder #6 Injector current fault	Low current (open circuit) or high current (short circuit) in the No. 6 cylinder injector solenoid. Flash code 74.	Warning	Perform "Injector Solenoid Circuit - Test"
0022-11	Primary to Secondary Engine Speed Signal Calibration	A timing calibration has been completed and the primary and secondary speed/timing sensors are off by more than 3 degrees. ECM uses default timing. Flash code 42.	Warning	Check the cluster gear, camshaft backlash and engine speed/timing sensors
0022-13	Engine Speed Signal Calibration Not Performed	A timing calibration has never been performed on a new ECM or the timing is off by more than 3 degrees. ECM uses default timing. Flash code 42.	Warning	Perform "Engine Speed/Timing Sensor - Calibrate"
0030-08	PTO Throttle signal invalid	The PTO Configuration is programmed to Remote Throttle and the ECM is not receiving a valid signal from the PTO throttle. Flash code 29.	Warning	Perform "Remote PTO Accelerator Position Sensor Circuit - Test"
0030-13	PTO Throttle out of calibration	The duty cycle of the PTO throttle signal is less than 5 percent or more than 95 percent for more than two seconds with PTO Configuration programmed to Remote Throttle. Flash code 29.	Warning	Perform "Remote PTO Accelerator Position Sensor Circuit - Test"
38-0	External Tank High Fuel Level Shutdown	EXT TANK HIGH FUEL LEVEL S/D	Shutdown
38-1	External Tank Low Fuel Level Shutdown	EXT TANK LOW FUEL LEVEL S/D	Shutdown
38-3	External Tank Fuel Level Sensor Short High	EXT TANK FUEL LEVEL SENSOR SHORT HIGH	Info
38-4	External Tank Fuel Level Sensor Short Low	EXT TANK FUEL LEVEL SENSOR SHORT LOW	Info
38-15	External Tank High Fuel Level Warning	EXT TANK HIGH FUEL LVL WARNING	Warning
38-17	External Tank Low Fuel Level Warning	EXT TANK LOW FUEL LVL WARNING	Warning
0041-03	8 Volt Supply voltage high	The 8 volt supply is more than 8.5 VDC for more than one second. Flash code 21.	Warning	Perform "Accelerator Pedal (Throttle) Position Sensor Circuit - Test"
0041-04	8 Volt Supply voltage low	The 8 volt supply is less than 7.5 VDC for more than one second. Flash code 21.	Warning	Perform "Accelerator Pedal (Throttle) Position Sensor Circuit - Test"
0043-02	Key Switch Fault	The key switch was rapidly cycled at least three times within the last second, indicating an intermittent battery circuit to the key switch or a low battery condition while the engine is running. Flash code 71.	Warning	Perform "Ignition Key Switch Circuit and Battery Supply Circuit - Test"
0052-11	Air Inlet Shutoff Shutdown	The engine was shut down due to an engine overspeed condition; ECM disables the unit injectors and activates the air inlet shutoff relay. Flash code 00.	Shutdown	Talk to the Operator to determine the reason for the engine overspeed; refer to "Air Inlet Shutoff Circuit - Test"
0054-05	Auxiliary Output #06 current low	A low current condition (open circuit) exists in the circuit for the lockout solenoid for more than two seconds with Transmission Style programmed to Eaton Top 2. Flash code 66.	Warning	Perform "Eaton Top 2 Transmission Circuit - Test"
0054-06	Auxiliary Output #06 current high	A high current condition (short circuit) exists in the circuit for the lockout solenoid for more than two seconds with Transmission Style programmed to Eaton Top 2. Flash code 66.	Warning	Perform "Eaton Top 2 Transmission Circuit - Test"
0055-05	Auxiliary Output #07 current low	A low current condition (open circuit) exists in the circuit for the shift solenoid with Transmission Style programmed to Eaton Top 2. Flash code 67.	Warning	Perform "Eaton Top 2 Transmission Circuit - Test"
0055-06	Auxiliary Output #07 current high	A high current condition (short circuit) exists in the circuit for the shift solenoid with Transmission Style programmed to Eaton Top 2. Flash code 67.	Warning	Perform "Eaton Top 2 Transmission Circuit - Test"
0064-12	Secondary Engine Speed loss of signal	The signal for the secondary engine speed/timing sensor is intermittent or lost. Flash code 34.	Warning	Perform "Engine Speed/Timing Sensor Circuit - Test"
0071-00	Idle Shutdown Override	The Allow Idle Shutdown Override parameter is programmed to Yes and the brake or clutch switch status changes within the final 90 seconds of the idle shutdown timer. Flash code 01.	Info	Perform "Idle Shutdown Timer - Test"
0071-01	Idle Shutdown	The idle shutdown timer has expired and the engine has shut down. Flash code 47.	Shutdown	Perform "Idle Shutdown Timer - Test"
0071-14	PTO Shutdown	The timer for the PTO has expired and the engine has shut down with the PTO On/Off switch in the ON position. Flash code 47.	Shutdown	Perform "PTO Shutdown Timer - Test"
82-0	High Starting Air Pressure Shutdown	HIGH STARTING AIR PRES SHUTDOWN	Shutdown
82-1	Low Starting Air Pressure Shutdown	LOW STARTING AIR PRES SHUTDOWN	Shutdown
82-3	Starting Air Pressure Sensor Short High	STARTING AIR PRES SENSOR SHORT HIGH	Info
82-4	Starting Air Pressure Sensor Short Low	STARTING AIR PRES SENSOR SHORT LOW	Info
82-15	High Starting Air Pressure Warning	HIGH STARTING AIR PRES WARNING	Warning
82-17	Low Starting Air Pressure Warning	LOW STARTING AIR PRES WARNING	Warning
0084-00	Vehicle Overspeed Warning	The vehicle speed exceeds the programmed Vehicle Speed Limit by more than 10 MPH (Soft VSL No) or 15 MPH (Soft VSL Yes) for more than 20 seconds. Flash code 41.	Warning	Perform "Vehicle Speed Circuit - Calibrate"
0084-01	Vehicle Speed loss of signal	The vehicle speed signal indicates 0 MPH while engine speed is above VSL Protection minus 100 rpm. Flash code 31.	Warning	Perform "Vehicle Speed and Speedometer Circuit - Test"
0084-02	Vehicle Speed signal invalid	The vehicle speed signal indicates a constant MPH with engine speed greater than 950 rpm. Flash code 36.	Warning	Perform "Vehicle Speed and Speedometer Circuit - Test"
0084-08	Vehicle Speed signal out of range	The vehicle speed signal indicates vehicle speed greater than 127.5 MPH for more than two seconds. Flash code 36.	Warning	Perform "Vehicle Speed and Speedometer Circuit - Test"
0084-10	Vehicle Speed signal rate of change	The vehicle speed signal changes more than 5 MPH on eight consecutive readings in three seconds. Flash code 36.	Warning	Perform "Vehicle Speed and Speedometer Circuit - Test"
0084-14	Quick Stop Occurrence	The vehicle speed slows at a rate that exceeds the programmed Quick Stop Rate with the service brake applied. The ECM records engine speed, vehicle speed, throttle position, cruise status, clutch switch and brake switch.	Info	No electronic system fault; check that the Quick Stop Rate parameter is not set too low
0091-08	Throttle Position Invalid	The signal frequency from the accelerator pedal position sensor is less than 150 Hz or greater than 1050 Hz for more than two seconds. Flash code 32.	Warning	Perform "Accelerator Pedal (Throttle) Position Sensor Circuit - Test"
0091-13	Throttle Position out of calibration	The duty cycle for the accelerator pedal position sensor is less than 5 percent or greater than 95 percent for more than two seconds. Flash code 32.	Warning	Perform "Accelerator Pedal (Throttle) Position Sensor Circuit - Test"
95-0	High Fuel Filter Differential Pressure Shutdown	HIGH FUEL FILTR DIFF PRES SHUTDOWN	Shutdown
95-1	Low Fuel Filter Differential Pressure Shutdown	LOW FUEL FILTER DIFF PRES SHUTDOWN	Shutdown
95-3	Fuel Filter Differential Pressure Sensor Short High	FUEL FLTER DIFF PRES SENSOR SHORT HIGH	Info
95-4	Fuel Filter Differential Pressure Sensor Short Low	FUEL FLTER DIFF PRES SENSOR SHORT LOW	Info
95-15	High Fuel Filter Differential Pressure Warning	HIGH FUEL FILTR DIFF PRES WARNING	Warning
95-17	Low Fuel Filter Differential Pressure Warning	LOW FUEL FILTER DIFF PRES WARNING	Warning
96-0	High Fuel Level Shutdown	HIGH FUEL LEVEL SHUTDOWN	Shutdown
96-1	Low Fuel Level Shutdown	LOW FUEL LEVEL SHUTDOWN	Shutdown
96-3	Fuel Level Sensor Short High	FUEL LEVEL SENSOR SHORT HIGH	Info
96-4	Fuel Level Sensor Short Low	FUEL LEVEL SENSOR SHORT LOW	Info
96-15	High Fuel Level Warning	HIGH FUEL LEVEL WARNING	Warning
96-17	Low Fuel Level Warning	LOW FUEL LEVEL WARNING	Warning
98-0	High Engine Oil Level Shutdown	HIGH ENGINE OIL LVL SHUTDOWN	Shutdown
98-1	Low Engine Oil Level Shutdown	LOW ENGINE OIL LVL SHUTDOWN	Shutdown
98-3	Engine Oil Level Sensor Short High	ENGINE OIL LEVEL SENSOR SHORT HIGH	Info
98-4	Engine Oil Level Sensor Short Low	ENGINE OIL LEVEL SENSOR SHORT LOW	Info
98-15	High Engine Oil Level Warning	HIGH ENGINE OIL LVL WARNING	Warning
98-17	Low Engine Oil Level Warning	LOW ENGINE OIL LVL WARNING	Warning
99-0	High Oil Filter Differential Pressure Shutdown	HIGH OIL FILTER DIFF PRES SHUTDOWN	Shutdown
99-1	Low Oil Filter Differential Pressure Shutdown	LOW OIL FILTER DIFF PRES SHUTDOWN	Shutdown
99-3	Oil Filter Differential Pressure Sensor Short High	OIL FILTER DIFF PRES SENSOR SHORT HIGH	Info
99-4	Oil Filter Differential Pressure Sensor Short Low	OIL FILTER DIFF PRES SENSOR SHORT LOW	Info
99-15	High Oil Filter Differential Pressure Warning	HIGH OIL FILTER DIFF PRES WARNING	Warning
99-17	Low Oil Filter Differential Pressure Warning	LOW OIL FILTER DIFF PRES WARNING	Warning
0100-01	Low Oil Pressure Warning	The engine oil pressure is below the trip line for more than eight seconds. Flash code 46.	Warning	Check engine oil level, sensor installation, active diagnostic codes, status screen, 5 volt supply and oil pressure map
100-1	Low Engine Oil Pressure Shutdown	LOW ENGINE OIL PRESS SHUTDOWN	Shutdown
0100-03	Oil Pressure voltage high	The signal voltage from the engine oil pressure sensor is greater than 4.8 VDC for more than eight seconds. Flash code 24.	Warning	Perform "Engine Pressure Sensor Open or Short Circuit - Test"
100-3	Engine Oil Pressure Sensor Short High	ENGINE OIL PRES SNSR SHORT HIGH	Info
0100-04	Oil Pressure voltage low	The signal voltage from the engine oil pressure sensor is less than 0.2 VDC for more than eight seconds. Flash code 24.	Warning	Perform "Engine Pressure Sensor Open or Short Circuit - Test"
100-4	Engine Oil Pressure Sensor Short Low	ENGINE OIL PRES SNSR SHORT LOW	Info
0100-11	Very Low Oil Pressure	The engine oil pressure is below the trip line for more than eight seconds. Engine speed limited to 1350 rpm and vehicle speed limited to 72 km/h (45 mph). Flash code 46.	Warning	Check engine oil level, sensor installation, active diagnostic codes, status screen, 5 volt supply and oil pressure map
100-17	Low Engine Oil Pressure Warning	LOW ENGINE OIL PRESS WARNING	Warning
0102-00	Excessive Boost Pressure	The actual boost pressure is higher than the desired boost pressure. Boost pressure is set to 0 kPa (0 psi).	Warning	Determine the cause of the excessive boost pressure such as a failed turbocharger wastegate or a pinched wastegate line
0102-03	Boost Pressure voltage high	The signal voltage from the boost pressure sensor is greater than 4.8 VDC for more than two seconds. Flash code 25.	Warning	Perform "Engine Pressure Sensor Open or Short Circuit - Test"
0102-04	Boost Pressure voltage low	The signal voltage from the boost pressure sensor is less than 0.2 VDC for more than one second. Flash code 25.	Warning	Perform "Engine Pressure Sensor Open or Short Circuit - Test"
0105-00	High Intake Manifold Air Temperature Warning	The intake manifold air temperature is greater than 90 C (194.0 F) for more than four seconds. Flash code 64.	Warning	Check the air-to-air aftercooler for debris and/or restriction to the air flow
0105-03	Intake Manifold Air Temperature voltage high	The signal voltage from the intake manifold air temperature sensor is greater than 4.9 VDC for more than eight seconds. Flash code 38.	Warning	Perform "Engine Temperature Sensor Open or Short Circuit - Test"
0105-04	Intake Manifold Air Temperature voltage low	The signal voltage from the intake manifold air temperature sensor is less than 0.2 VDC for more than eight seconds. Flash code 38.	Warning	Perform "Engine Temperature Sensor Open or Short Circuit - Test"

Showing the first 80 of 255 codes.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Belts - Inspect/Adjust/Replace (Adjusting the Alternator Belt) adjustment

⚠ If new drive belts are installed, check the drive belt tension again after 30 minutes of engine operation at the rated rpm.

Remove the drive belt guard.
Loosen mounting bolt (1), adjusting nuts (2) and mounting bolt (3).
Turn adjusting nuts (2) in order to increase or decrease the drive belt tension.
Tighten adjusting nuts (2). Tighten mounting bolt (3). Tighten mounting bolt (1).
Reinstall the drive belt guard.

Electronic Control Module (Generator Set) - Configure adjustment

⚠ Ensure that the fault protection timer is ENABLED for events that will cause a SHUTDOWN EVENT during Start-Up (LOW OIL PRESS, UNDER VOLTAGE, UNDER FREQ, UNDER SPEED).

From main menu highlight PREFERENCES; set CONTRAST, BACKLIGHT, PRESSURE, TEMPERATURE, VOLUME, and LANGUAGE.
Press ESCAPE to return to the main menu and highlight CONFIGURE.
Press DOWN until SETPOINTS is highlighted.
Scroll to AUTOMATIC START/STOP and adjust setpoints to desired values.
Highlight ENG COOL TEMP; select Data Link for ADEM3/ADEM4 or I/O PIN otherwise.
Highlight ENG OIL PRES MONITOR; select I/O PIN or Data Link.
Highlight ENG SPEED MONITOR and input the flywheel teeth number.
Highlight GEN AC MONITOR and adjust setpoints and input values.
Highlight GEN OVER/UNDER FREQ and adjust setpoints and values.
Highlight GEN OVER/UNDER VOLT and adjust setpoints and values.
Highlight SPARE ANALOG INPUT; enable and configure if used.
Highlight EVENT RESPONSE CONFIG and select the event responses and checkboxes.

Electronic Unit Injector - Inspect/Adjust adjustment

⚠ The electronic unit injectors use high voltage. Disconnect the unit injector enable circuit connector to prevent personal injury.

⚠ Improper adjustment can reduce engine efficiency and shorten component life.

Ensure the engine cannot be started while maintenance is performed. Do not use the starting motor to turn the flywheel.
Allow hot engine components to cool before measuring or adjusting the unit injectors.
Disconnect the unit injector enable circuit connector to prevent personal injury. Do not contact injector terminals while engine is running.
Only qualified service personnel should perform this maintenance.
Refer to Systems Operation, Testing and Adjusting, 'Electronic Unit Injector - Test' and 'Electronic Unit Injector - Adjust'.
Camshafts must be correctly timed with the crankshaft before injector lash adjustment. Remove timing pins before turning crankshaft.

Engine Oil Level Gauge - Calibrate adjustment

Tools: Marking pen

Operate engine until normal operating temperature is achieved; stop engine; remove a crankcase drain plug and drain oil pan completely.
Remove used engine oil filter; install new filter; install drain plug; tighten to 70 ± 14 N·m (50 ± 10 lb ft).
Add recommended oil: Standard Sump 45.4 L (48 qt); Deep Sump 64 L (68 qt).
Start engine; ensure lubrication system and new filter are filled; inspect for leaks.
Stop engine; allow oil to drain into crankcase approximately five minutes.
Check oil level; use a marking pen to engrave ADD mark (Y).
Add 3.8 L (4 qt) recommended oil; full volume now 49.2 L (52 qt) standard sump or 68.1 L (72 qt) deep sump; allow to drain five minutes.
Check oil level; use a marking pen to engrave FULL mark (X).

Engine Valve Lash - Inspect/Adjust adjustment

⚠ Ensure that the engine can not be started while this maintenance is being performed.

⚠ Hot engine components can cause burns; allow additional time for the engine to cool before measuring/adjusting valve lash clearance.

Initial valve lash adjustment on new, rebuilt, or remanufactured engines is recommended at the first scheduled oil change.
Adjust the electronic unit injector (preload) at the same interval as the valve lash adjustment.
Only qualified service personnel should perform this maintenance.

Fuel Injector - Inspect/Adjust adjustment

⚠ Only qualified service personnel should perform valve lash maintenance.

Tools: 9U-7227 Injector Height Gauge

Inspect the injector mechanism for signs of wear.
Put the No. 1 piston at the top center position on the compression stroke.
Use the 9U-7227 Injector Height Gauge to obtain 78.0 ± 0.2 mm (3.07 ± 0.01 inch) from top of unit injector to machined ledge of fuel injector body.
Turn unit injector adjustment screw clockwise until the correct height is obtained.
Hold adjustment screw and tighten locknut to 100 ± 10 N·m (75 ± 7 lb ft).
For cylinders 1, 2, 3, 7, 8, and 10 remove the timing bolt; turn flywheel 360 degrees counterclockwise (viewed from flywheel end) to put No. 11 piston at top center.
Repeat adjustment steps 3 through 4.
Remove timing bolt from flywheel; reinstall valve mechanism covers.

Speed Sensor (Engine) - Adjust adjustment

⚠ Do not allow speed sensor to turn as locknut is tightened.

Remove the speed sensor from the flywheel housing and remove all debris from the tip.
Align a ring gear tooth directly in the center of the threaded sensor opening.
By hand, screw the speed sensor into the hole until the end contacts the gear tooth.
Turn the sensor counterclockwise through 270 degrees (three-fourths turn).
Tighten locknut to 25 ± 5 N·m (18 ± 4 lb ft). Do not allow the sensor to turn.

Determining the cause of a plugged fuel filter (ice or wax) diagnostic

Remove the fuel filters.
Cut the fuel filters open.
Inspect the fuel filter before the filter warms. The inspection will show that the filter is filled with particles of either ice or wax.

Engine Protective Devices - Check diagnostic

⚠ During testing, abnormal operating conditions must be simulated. Perform tests correctly to prevent engine damage.

Visually check the condition of all gauges, sensors, and wiring. Look for loose, broken, or damaged items. Repair or replace immediately.
Alarms and shutoffs must function properly. Malfunctions must be simulated to test the devices.
Only authorized service personnel or your Caterpillar dealer should perform the tests.
For calibration of temperature contactors, see Special Instruction SEHS9827.
For calibration of pressure contactors, see Special Instruction SEHS9828.

Generator Overfrequency Warning Troubleshooting diagnostic

Tools: multimeter

Ask operator about cause; if known and repaired, reset genset and resume.
Compare Generator Overfrequency and Desired Engine Speed Request setpoints to default setpoints.
EUI engines: verify generator output frequency can be viewed and adjusted on EMCP 3 display.
MUI engines: adjust frequency with speed potentiometer; if not adjustable, go to step 5.
Shut down engine; disconnect speed potentiometer from 2301A Governor terminals 11 and 12; measure resistance (0-100 ohms).
Check speed potentiometer harness open circuit; terminal 11 and 12 to potentiometer resistance should be 5 ohms or less.
EUI engines: check J1939 Data Link wiring between EMCP 3 and Engine ECM.
Check three fuses on AC voltage inputs of EMCP 3; they should not be open.
Open circuit breaker, start engine, measure line-to-line voltage at all three AC input fuses; should equal rated voltage.
Shut down engine; remove EMCP 3 harness connector; inspect connector and wires between voltage inputs and fuses.

Generator Underfrequency Warning - Troubleshooting diagnostic

Talk to the operator to determine the conditions that caused the underfrequency condition.
If cause is known and repaired, reset the genset, resume operation and verify.
View Generator Underfrequency and Generator Desired Engine Speed Request setpoints; compare against default setpoints.
If setpoints are not correct, reprogram them, reset the genset and verify.
EUI engines: verify generator output frequency can be viewed and adjusted from the EMCP 3 Display Screen.
Adjust generator output frequency to meet site requirements and verify.
MUI engines: with engine running, adjust output frequency using the speed potentiometer.
Disconnect speed potentiometer from terminals "11" and "12" on the 2301A Governor; measure its resistance.
Check the speed potentiometer harness for an open circuit; resistance should be 5 ohms or less.
EUI engines: check the J1939 Data Link between the EMCP 3 and the Engine ECM.
Check the three fuses on the AC voltage inputs of the EMCP 3; fuses should not be open.
Open the circuit breaker or remove load, start and run the genset, measure voltage between all three AC input fuses.
Shut down engine, remove the EMCP 3 harness connector, inspect connector and wires to voltage input fuses.

Insulation - Test (Recommended Procedure for A Periodic Insulation Test) diagnostic

⚠ The high voltage that is produced by an operating generator set can cause severe injury or death.

⚠ The megohmmeter is applying a high voltage to the circuit. Do not touch the instrument leads without first discharging them.

Tools: 142-5055 Insulation Testing Gp, 9U-6003 Insulation Testing Gp

Take the generator out of service.
Visually inspect the generator for moisture. If moisture exists, dry the unit first.
Discharge the capacitance of the windings.
Isolate the stator windings by disconnecting all other leads and cables from the generator terminals.
Connect the insulation tester's RED lead to ground.
Connect the insulation tester's BLACK lead to the wye point of the generator's windings.
Set the voltage to 500 Volts for units of 600 volts or less; 1000 Volts for units more than 600 volts.
Apply voltage and observe readings at 30 seconds and 60 seconds. Record the 60 second reading, temperature and humidity.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
	3-wire delta	Open Delta configuration of external potential transformers (PT)		Allows accurate measurement of power parameters including unbalanced loads and circulating current. Real power phase A, B, C and power factor phase A, B, C can not be determined. Two potential transformers allow maximum accuracy.
	4-wire wye	Open Delta configuration of external potential transformers (PT)		Results in less accurate measurement of all power parameters when loads are unbalanced and neutral current is present. Real power phase A, B, C and power factor phase A, B, C can not be determined and are not shown.
	4-wire wye	Wye configuration of external potential transformers (PT)		Allows accurate measurement of all power parameters by the EMCP3 including when loads are unbalanced and neutral current is present. Preferred configuration for 4-wire wye generators.
190-220 (50 Hz) / 190-240 (60 Hz)	three-phase	Wiring Code A	6	5000 12 wire factory connection for A wiring code; R448 voltage sensing 0 => (T3) / 220 V => (T2)
240	three-phase	Typical Parallel Wye Configuration	12	This is a typical high voltage connection
380-415 (50 Hz) / 380-480 (60 Hz)	three-phase	Wiring Code D	6	R448 voltage sensing 0 => (T3) / 380 V => (T2)
480	three-phase	Typical Series Wye Configuration	12	This is a typical high voltage connection
480	three-phase	Typical Wye Configuration	6
58% of three-phase voltage	single-phase	Phase lead and neutral lead of the Wye Configuration		For 6 lead and 12 lead Wye configurations

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Parts cataloged across the Caterpillar C1.5 family

280

Part #	Description	Category
AP70121	Diesel particulate filter (DPF)	Dpf
AP70123	Diesel particulate filter (DPF)	Dpf
1054-037	Engine Air Cleaner Element (Dual Element) - Clean/Replace	Air filter
1054-510	Engine Air Cleaner Element (Dual Element) - Clean/Replace	Air filter
106-3973	Air filter inner	Air filter
142-1340	Air Primary	Air filter
142-1403	Air Secondary	Air filter
151-7737	Air Primary	Air filter
189-0202	Air Secondary	Air filter
197-8561	Air filter	Air filter
220-0454	Air Primary	Air filter
244-0514	Air filter	Air filter
246-5009	Air	Air filter
246-5010	Air	Air filter
246-5011	Air Filter	Air filter
263-1285	Air filter	Air filter
266-2793	Air Filter	Air filter
4N0015	Air filter outer	Air filter
7452-040	Engine Air Cleaner Service Indicator - Inspect	Air filter
9Y-3879	Air	Air filter
PEHJ0170	Air Inlet Shutoff	Air filter
6T1395	Alternator	Alternator
102365059	Annunciator Module	Annunciator module
102340858	Battery Electrolyte Level - Check	Battery
02023749	Bearing (Ball) - Lubricate (Generator)	Bearing
118-2018	V-belt	Belt
164-4599	V-belt	Belt
4N6302	V-belt	Belt
111-2369	Maintenance Element	Coolant filter
M-1456700	Corona de pistón	Corona de pistón
102374454	Engine Shutoffs and Engine Alarms	Engine shutoffs and engine alarms
101-2844	1 gallon (3.8L)	Fluid
119-5152	Cat Engine Oil (quart bottle)	Fluid
1U-5490	Hydrosolv 4165 liquid cleaner, 19 L (5 US gallon)	Fluid
2S-3230	Bearing Lubricant (grease)	Fluid
4C-6792	VCI oil	Fluid
5N-5561	Silicone Lubricant	Fluid
033-7854	Filter fuel	Fuel filter
102326422	Fuel System Secondary Filter - Replace	Fuel filter
133-5673	Fuel/Water Separator	Fuel filter
150-4142	Filter fuel	Fuel filter
1R-0749	Fuel Secondary - ADV	Fuel filter
1R-0762	Fuel Secondary - ADV	Fuel filter
1R-0770	Fuel/Water Separator	Fuel filter
1R-0781	Fuel/Water Separator - ADV	Fuel filter
1R0749	Filter fuel	Fuel filter
1R0751	Fuel Filter (secondary)	Fuel filter
1R0755	Filter fuel	Fuel filter
206-6910	Fuel	Fuel filter
210-6712	Fuel	Fuel filter
210-6787	Fuel	Fuel filter
271-1712	Fuel	Fuel filter
276-1804	Fuel	Fuel filter
276-1806	Fuel Filter	Fuel filter
326-1641	Axial seal FWS	Fuel filter
326-1642	Filter water separator	Fuel filter
326-1643	Filter water separator	Fuel filter
326-1644	Filter water separator	Fuel filter
3S3875	Filter fuel	Fuel filter
691245037	Caterpillar High Efficiency Fuel Filter	Fuel filter
901075639	Caterpillar High Efficiency Fuel Filter	Fuel filter
9N3717	Filter water separator	Fuel filter
138-4611	Gasket exhaust manifold	Gasket
153-9653	Gasket cylinder head	Gasket
155-8078	Gasket kit overhaul	Gasket
4N1151	Gasket oil pan	Gasket
AP70122	DPF gasket	Gasket
AP70313	DPF gasket	Gasket
AP70314	DPF gasket	Gasket
M-1609874	Gasket Set - Cylinder Liner Packing	Gasket
M-1891814	Oil Cooler Set	Gasket
M-2088350	Air Compressor Set	Gasket
M-2138621	Water Pump Installation Set	Gasket
M-2250773	Fuel System Set	Gasket
M-2341877	Rear Structure Set	Gasket
M-2341904	Front Structure Set	Gasket
M-2410825	Turbocharger Installation Set	Gasket
M-2572756	Central & Lower Set	Gasket
M-2800481	Air Compressor Set	Gasket
M-2853200	Rear Structure Set	Gasket
M-2903986	Turbocharger Installation Set	Gasket
M-2969932	Fuel System Set	Gasket
M-2969949	Central & Lower Set	Gasket
M-2997436	Water Pump Installation Set	Gasket
M-3483681	Front Structure Set	Gasket
M-3483682	Oil Cooler Set	Gasket
M-3639020	Gasket Set - Central & Lower	Gasket
M-3639024	Gasket Set - Rear Structure	Gasket
M-3648129	Gasket Set - Rear Structure	Gasket
M-3648338	Gasket Set - Front Structure	Gasket
M-4359418	Gasket Set - Front Structure	Gasket
M-4445208	Gasket Set - Oil Cooler & Lines	Gasket
M-4620795	Gasket Set - Oil Cooler & Lines	Gasket
M-4627233	Gasket Set - Rear Structure	Gasket
M-4631070	Gasket Set - Aftercooler & Lines	Gasket
M-4672743	Gasket Set - Oil Cooler & Lines	Gasket
M-4679007	Gasket Set - Rear Structure	Gasket
M-4698926	Gasket Set - Turbo Installation	Gasket
M-4711663	Gasket Set - Central & Lower	Gasket
M-4911916	Gasket Set - Oil Cooler & Lines	Gasket
M-4922707	Gasket Set - Front Structure	Gasket
M-4N1151	Oil Pan Gasket	Gasket
M-4N1151-6	Oil Pan Gasket	Gasket
M-5001802	Gasket Set - Front Structure	Gasket
M-5273499	Gasket Set - Front Structure	Gasket
M-5719902	Head gasket kit	Gasket
M-5P5678-6	Valve Cover Gasket	Gasket
M-5P5678-9	Valve Cover Gasket	Gasket
MCB3406461	Overhaul Gasket Set	Gasket
MCB3406462	In-Chassis Gasket Set	Gasket
MCB3406463	Cylinder Head Gasket Set	Gasket
MCB3406471	Overhaul Gasket Set	Gasket
MCB3406472	In-Chassis Gasket Set	Gasket
MCB3406473	Cylinder Head Gasket Set	Gasket
MCBC15091	Overhaul Gasket Set	Gasket
MCBC15092	In-Chassis Gasket Set	Gasket
MCBC15093	Cylinder Head Gasket Set	Gasket
MCBC15111	Overhaul Gasket Set	Gasket
MCBC15112	In-Chassis Gasket Set	Gasket
MCBC15211	Overhaul Gasket Set	Gasket
MCBC15212	In-Chassis Gasket Set	Gasket
MCBC15213	Cylinder Head Gasket Set	Gasket
MCBC15222	In-Chassis Gasket Set	Gasket
MCBC15321	Overhaul Gasket Set	Gasket
MCBC15322	In-Chassis Gasket Set	Gasket
MCBC15323	Cylinder Head Gasket Set	Gasket
MCBC15993	Cylinder Head Gasket Set	Gasket
M-4446485	Gasket Set - C13-C15-C18 Front Structure	Gasket set
1R0774	Filter hydraulic	Hydraulic filter
1R0777	Filter hydraulic	Hydraulic filter
328-3655	Filter hydraulic/transmission	Hydraulic filter
9T0973	Filter hydraulic/transmission	Hydraulic filter
M-2463129	Impeller – Water Pump	Impeller
252-1446	Fuel injector	Injector
252-1466	Fuel injector	Injector
R-10R0955	Fuel Injector - Reman	Injector
R-10R0956	Fuel Injector - Reman	Injector
R-10R1000	Fuel Injector - Reman	Injector
R-10R1273	Fuel Injector - Reman	Injector
R-10R2780	Fuel Injector - Reman	Injector
R-10R3261	Fuel Injector - Reman	Injector
R-10R3265	Fuel Injector - Reman	Injector
R-10R6163	Fuel Injector - Reman	Injector
R-10R8501	Fuel Injector - Reman	Injector
9U-7227	Injector Height Gauge	Injector height gauge
M-CK1456700P	Kit de cilindro	Kit de cilindro
901034418	Lifting eye label	Label
901187534	Label for the Center of Gravity	Label
296-8325	Crankcase Ventilation (CV) Filter	Ocv filter cartridge
175-7546	Oil Filter Cutter	Oil filter
1R-0716	Engine Oil	Oil filter
1R-1808	Engine Oil - ADV	Oil filter
1R0716	Filter oil	Oil filter
1R1808	Filter oil	Oil filter
220-1523	Engine Oil	Oil filter
1000-070	Engine - Clean	Service part / kit
101359666	steps, handholds, and work area support equipment	Service part / kit
101980600	Generator Start-up Checklist	Service part / kit
102308903	Starting with Jump Start Cables	Service part / kit
102364470	Refill Capacities and Recommendations	Service part / kit
102372057	engine start switch or controls warning tag	Service part / kit
102373615	Safety Messages	Service part / kit
102394978	Fuel Tank Water and Sediment - Drain	Service part / kit
102414708	Weekly Maintenance Interval Schedule (Standby Generator Sets)	Service part / kit
102414729	Daily Maintenance Interval Schedule	Service part / kit
108-1760	Ball Bearing (frame 321 BC)	Service part / kit
108-1761	Ball Bearing (frame 322 BC)	Service part / kit
1152-040	Engine Mounts - Inspect	Service part / kit
1205-040	Crankshaft Vibration Damper - Inspect	Service part / kit
128-4124	Kit without Conditioner	Service part / kit
1317-070	Engine Crankcase Breather - Clean	Service part / kit
1348-535-FLV	Engine Oil Level - Check	Service part / kit
1350-008	Cooling System Coolant Sample (Level 1) - Obtain	Service part / kit
1352-045	Cooling System Supplemental Coolant Additive (SCA) - Test/Add	Service part / kit
1355-510	Cooling System Water Temperature Regulator - Replace	Service part / kit
139-0349	Bearing (Roller Bearing)	Service part / kit
139-0350	Bearing (Roller Bearing)	Service part / kit
1395-008	Cooling System Coolant Sample (Level 1) - Obtain	Service part / kit
1395-081	Cooling System Supplemental Coolant Additive (SCA) - Test/Add	Service part / kit
1395-554	Cooling System Coolant Sample (Level 1) - Obtain	Service part / kit
154-3032	Ball Bearing (frame 326 BC)	Service part / kit
1540867	Connecting rod	Service part / kit
1566980	Connecting rod	Service part / kit
163-1128	Kit with Liquid	Service part / kit
163-1129	Kit with Element	Service part / kit
169-8373	Fluid Sampling Bottle	Service part / kit
174-6854	Hydrosolv 100 liquid cleaner, 19 L (5 US gallon)	Service part / kit
177-9778	Base	Service part / kit
1899771CAT	Oil Control Piston Ring - Intermediate, 3406E/ C15	Service part / kit
193-4070	Ball Bearing, 018 BC frame, 140.0 mm OD, 90.0 mm ID (498/499)	Service part / kit
195-1068	Base	Service part / kit
1U-8760	Chain Wrench	Service part / kit
206-5756	PrimeTime Prime Only Configuration Kit	Service part / kit
2243245	Connecting rod	Service part / kit
241-4644	Bearing (frame 320 BC / LC7)	Service part / kit
243-5220	Bearing (frame 315 BB)	Service part / kit
253-9789	Bearing (frame 1400 FR)	Service part / kit
261-3545	Bearing (frame 307 BB)	Service part / kit
262-5921	Bearing (frame 307 BC)	Service part / kit
263-0161	Bearing (frame 309 BC)	Service part / kit
304-7755	Cat Regeneration System	Service part / kit
305-2389	Wire Brush	Service part / kit
311-0843	Ball Bearing (frame 1800 FR)	Service part / kit
311-0844	Ball Bearing (frame 1600 FR)	Service part / kit
4459-535	Electrical Connections - Check	Service part / kit
5P-2448	Ball Bearing (frames 580/590)	Service part / kit
6Y-3955	Ball Bearing (frame 450)	Service part / kit
6Y-6488	Ball Bearing (frame 597)	Service part / kit
7423-040	Cylinder Head Grounding Stud - Inspect/Clean/Tighten	Service part / kit
7423-070	Cylinder Head Grounding Stud - Inspect/Clean/Tighten	Service part / kit
7423-079	Cylinder Head Grounding Stud - Inspect/Clean/Tighten	Service part / kit
888-983-7847	ENGINE BLOCK CRANKSHAFT	Service part / kit
8T1589	Maintenance Charge	Service part / kit
8T9190	Refill Charge	Service part / kit
9Y6054	Connecting rod	Service part / kit
AEHQ5614-01	623G Wheel Tractor Scraper	Service part / kit
AEHQ5628-02	826H Landfill Compactor	Service part / kit
ALR160-S04	ALR Series Linear Actuator	Service part / kit
M-2477133	1 Regulator - 190ºC	Service part / kit
M-2485513	1 Regulator - 180ºC	Service part / kit
M-3323722	Camshaft	Service part / kit
M-3327299	Camshaft	Service part / kit
M-3327301	C15 camshaft	Service part / kit
M-9Y0810	Sleeve – Wear (Rear)	Service part / kit
M-9Y0821	Sleeve – Wear (Front)	Service part / kit
MCB3067460	Piston	Service part / kit
MCIF3067460SDP	Inframe Kit	Service part / kit
MCIF3569946SDP	Inframe Kit	Service part / kit
MCOH3067460SDP	Overhaul Kit	Service part / kit
MCOH3569946SDP	Overhaul Kit	Service part / kit
R-20R2284	C15/C18/C27/C32 ACERT Trim file (12-digit serial)	Service part / kit
R-20R2285	C15/C18/C27/C32 ACERT Trim file (12-digit serial)	Service part / kit
MCB3569946	Piston	Piston
138-6744	Water pump repair kit	Pump
161-4113	Oil pump	Pump
1615719CAT	New Water Pump - fits 3406E & C15	Pump
183-4320	Lift/transfer pump	Pump
1U-5718	Vacuum Pump	Pump
311-0053	Water pump	Pump
336-2213	Water pump	Pump
352-0211	Water pump	Pump
384-8611	Lift/transfer pump	Pump
384-8612	Lift/transfer pump	Pump
M-1052508	1 Fuel Priming Pump	Pump
M-1354925	Water Pump	Pump
M-1375541	1 Fuel Priming Pump Tall	Pump
M-1614113	Oil Pump	Pump
M-1615719	Water Pump	Pump
M-2463130	Shaft – Water Pump	Pump
M-2672839	Water pump repair kit	Pump
M-3848611	Pump - Transfer	Pump
M-4N733	Oil Pump	Pump
142-5867	Front seal	Seal
142-5868	Rear seal	Seal
M-1425867	Front Crankshaft Seal	Seal
M-1425868	Rear Crankshaft Seal	Seal
M-1632478	6 6 Valve Stem Seal - Exhaust	Seal
M-2274239ORK	Injector Sleeve O-Ring Kit	Seal
M-2287094	Nose O-ring	Seal
M-2481394	Injector O-Ring Kit	Seal
M-3044925	Rocker Cover Isolator Seal	Seal
M-3S9643	1 Regulator Seal	Seal
M-5S2106	Fan Hub Seal	Seal
M-7F2122	Fan Hub O-Ring Seal	Seal
M-1946722	Sensor - Pressure	Sensor
M-1946724	Sensor - Pressure	Sensor
M-1946725	Sensor - Pressure	Sensor
M-2244536	Sensor - Pressure	Sensor
M-2566453	Sensor - Temperature	Sensor
M-2644297	Sensor - Temperature	Sensor
M-2842728	Sensor - Pressure	Sensor
247-7133	Thermostat	Thermostat
248-5513	Thermostat	Thermostat
251-7660	Thermostat	Thermostat
M-4W4011	Regulator - 170°	Thermostat
177-0440	Turbocharger	Turbocharger
196-5951-RK	Turbocharger repair kit	Turbocharger
M-2321811	Turbocharger	Turbocharger
M-2514820	Turbocharger	Turbocharger
102424081	Voltage Regulators	Voltage regulators

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Aftermarket parts that fit this engine

P534925 FridayParts $151.99 KuduParts $204.00 AF25248 FridayParts $151.99 KuduParts $204.00 RS3534 FridayParts $151.99 KuduParts $204.00 2H-3750 FridayParts $598.56 5F-4899 FridayParts $598.56 350-8687 FridayParts $160.59 VA53-BP70/LL-39A FridayParts $160.59 216-4970 FridayParts $86.52 SDLM-120-4 FridayParts $86.52 240A FridayParts $34.29 366-0669 FridayParts $356.99 20R-0956 FridayParts $356.99 394-3492 FridayParts $138.00 SinoCMP $199.00 171-2212 FridayParts $75.99 225-8758 FridayParts $89.99 3524700 FridayParts $266.20 235-7132 FridayParts $255.60 2988838 FridayParts $356.60 7G-7889 FridayParts $187.20 SinoCMP $329.00 344-5081 FridayParts $53.50 485-9753 FridayParts $479.63 20R-4050 FridayParts $625.60 591-2386 FridayParts $625.60 398-4747 FridayParts $625.60 344-3456 FridayParts $121.60 344-3455 FridayParts $121.60 201-0950 FridayParts $94.30 153-2521 FridayParts $39.50 375-1478 FridayParts $34.99 219-6488 FridayParts $57.90 335-7371 FridayParts $328.59 518-6322 FridayParts $732.56 335-7370 FridayParts $328.59 578-9822 FridayParts $1095.50 353-2833 FridayParts $96.56 3E-6466 FridayParts $73.99 162-2073 FridayParts $73.99 147-7975 FridayParts $217.50 273-5307 FridayParts $82.65 096-1628 FridayParts $48.56 5P-8309 FridayParts $48.90 3E-0156 FridayParts $15.78 SinoCMP $29.00 FS19728 FridayParts $67.84 118-6606 FridayParts $104.45 247-7133 Amazon eBay $107.00 eBay $41.00 FridayParts $27.50 217-6022 FridayParts $385.56 5P-4924 FridayParts $29.50 171-2211 FridayParts $81.88 SDLM-90-4 FridayParts $81.88 396-6886 FridayParts $506.47 342-8127 FridayParts $285.99 5C-8964 FridayParts $30.99 5C-9029 FridayParts $30.99 148-8385 FridayParts $10.80 150-4037 FridayParts $27.42 326-7963 FridayParts $48.20 P608653 FridayParts $86.56 AF25480 FridayParts $86.56 16633 FridayParts $86.56 P613336 KuduParts $96.00 FridayParts $97.70

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Also used in

Atlas Copco D65 — Drilling Equipment
Caterpillar 740 — Dump Truck Articulated
Caterpillar 770 — Dump Truck
Caterpillar CB22 — Compactor
Caterpillar CB24 — Compactor
Caterpillar CB32 — Compactor
Caterpillar CB34 — Compactor
Caterpillar CB34XW — Compactor
Caterpillar CC24 — Compactor
Caterpillar MD6290 — Drilling Equipment
Caterpillar RM500 — Road Stabilizer
New Holland FX60 — Harvester

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.

Common questions

What is the oil capacity of the Caterpillar C1.5?

The Caterpillar C1.5 engine has an oil capacity of 60.0 liters.

What is the displacement of the Caterpillar C1.5?

The Caterpillar C1.5 has a displacement of 15.8 liters with 6 cylinders.

Which generators use the Caterpillar C1.5 engine?

The Caterpillar C1.5 powers 6 generator set(s), including Atlas Copco XASE 1600, Caterpillar C1.5, Caterpillar C15, Caterpillar C15 Generator Set, Caterpillar D13-4.

How often should you change the oil in the Caterpillar C1.5?

The Caterpillar C1.5 oil change interval is every 30000 hours.

What is a common problem with the Caterpillar C1.5 engine?

A commonly reported issue on generators using the Caterpillar C1.5 is: Overspeed.