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Caterpillar C15 ACERT Generator Set

The Caterpillar C15 ACERT is a 350 kW (400 kVA) diesel standby generator set powered by a Caterpillar C15 ACERT engine. It is available at 400 V, 50 Hz. It holds about 115 L (30.4 gal) of oil and 15.2 L (4.0 gal) of coolant. The set measures 1438×969×1248 mm (56.6×38.1×49.1 in) and weighs about 1542 kg (3400 lb).

350 kW
Standby
15.2 L
Displacement
115.0 L
Oil capacity
4
Document types

How to read your Caterpillar serial & model number →

Typical fuel consumption for 350–355 kW Diesel generators →

Compare with other 350–355 kW Diesel generators →

Service parts for the C15 ACERT

Grouped by system, with how many of each the parts manual calls for.

Fuel system

2 required
356-1428Fuel filtersee priceAmazon
588-2631Fuel filter (primary)see priceAmazon

Oil system

1 required
588-1049Oil filtersee priceAmazon

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Fueldiesel
Frequency50.0 Hz
Standby power350 kW
Standby kVA400
Prime power320 kW
EmissionsEU Stage II, Low BSFC
Oil capacity115.0 L
Voltage options400 V
Coolant capacity15.2 L
Dimensions (L×W×H)1438×969×1248 mm
Dry weight1542 kg

Engine

Caterpillar C15 ACERT
Oil capacity115.0 L
Coolant capacity20.8 L
Displacement15.2 L
AspirationTurbocharged Air-to-Air Aftercooled
Rated speed1800 rpm

Filters for the Caterpillar C15 ACERT

6

Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.

SystemFilterDescriptionCross-references
Oil filterP551808Lube Filter, Spin-On Full FlowCATERPILLAR 1R1808, CATERPILLAR 1R808, NAPA 7792, BALDWIN B7299 KuduParts $80.00
Oil filterP554005Lube Filter, Spin-On Full FlowCATERPILLAR 1R0716, CATERPILLAR 1W2660, NAPA 1792, BALDWIN BF46150-O FridayParts $41.73
Fuel filterP550625Fuel Filter, Spin-On SecondaryCATERPILLAR 1165436, CATERPILLAR 1R0762, NAPA 3640, BALDWIN BF7753 buy

Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:

SystemFilterDescriptionCross-references
Fuel / water separatorP551000Fuel Filter, Water Separator Spin-On Twist&DrainCATERPILLAR 2568753, CATERPILLAR 3I2113, NAPA 3406, BALDWIN BF1259 FridayParts $99.00
Fuel / water separatorP550467Fuel Filter, Water Separator CartridgeNAPA 3651XE, DAVCO 102429, DAVCO 102529, THERMO KING 119953 FridayParts $122.50
Coolant filterP554685Coolant Filter, Spin-On Non-ChemicalCATERPILLAR 3I1300, CATERPILLAR 4059558, NAPA 4070, MTU 0002040791 buy

Maintenance & consumables

for the Caterpillar C15 ACERT
ItemSpecCapacityPart #Interval
Air filterAir cleaner, cyclonic/paper with dust cup and service indicator—
Fuel filterFuel Filter356-1428 Amazon eBay
Fuel filterWater Separator and Fuel Filter588-2631 Amazon eBay
Oil filterEngine Oil Filter588-1049 Amazon eBay
BatteryTwo 950 CCA maintenance-free 12V batteries with padlockable single-pole battery isolator—
BeltPoly-V accessory drive belt with autotensioner—500 hr
CoolantCoolant heater, fuse protected, thermostatically controlled, automatically disconnected on start-up; Coolant drain line with internal brass ball control valve piped to base-frame; Low coolant level shutdown; 50% coolant antifreeze with corrosion inhibitor—
Oil500-hour oil change intervals (1000-hour oil change interval option)—500 hr
Spark plug—

Compatible filters for the Caterpillar C15 ACERT — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: Caterpillar 1063973 Caterpillar 612506 Caterpillar 30009151 Caterpillar 2310167 Caterpillar 3I1456

Service intervals

3
ItemActionHoursMonthsNotes
Primary air filter elementChange250 hrWhen changing the primary element at 250 operating hours (basis of the without-indicator filter-change comparison)
engineOther500 hrCat compact diesel lineup offers 500-hour maintenance intervals and single-side service access
Secondary air filter elementChange750 hrWhen changing the secondary element at 750 operating hours (basis of the without-indicator filter-change comparison)

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

47
TypeItemValueUnitCondition
ClearanceCylinder bore diameter5.4IN
ClearancePiston stroke6.7IN
OtherAir compressor air flow374L/min (13.2 cfm) @ 1250 rpmC7 ACERT, C9 ACERT
OtherAir compressor air flow445L/min (15.7 cfm) @ 1250 rpmC11 ACERT, C13 ACERT, C15 ACERT, C18 ACERT
OtherAir compressor air flow467L/min (16.5 cfm) @ 1250 rpmC7 ACERT, C9 ACERT
OtherAir compressor air flow889L/min (31.4 cfm) @ 1250 rpmC11 ACERT, C13 ACERT, C15 ACERT, C18 ACERT
OtherCombustion air inlet flow rate38.2m3/min
OtherGross Input Torque (TH55-E70)12 667N•m (9350 lb-ft)
OtherGross Input Torque (TH55-E90)12 677N•m (9350 lb-ft)
OtherMaximum fuel flow from transfer pump to engine69.2G/HR
OtherMaximum transfer pump priming lift without priming pump12.1FT
OtherMaximum uninterrupted fill rate5.0G/MIN
OtherRadiator air flow720m3/min
OtherRadiator cooling package maximum elevation1524m (5000 ft)with 50/50 water/Extended Life Coolant mixture
OtherRating condition (diesel 7 L and higher)99 kPa (29.31 in Hg) dry barometer, 25°C (77°F)SAE J1995 inlet air standard
OtherRating condition (diesel up to 6.6 L)100 kPa (29.5 in Hg) total barometric pressure, 1 kPa (.295 in Hg) vapor pressure, 25°C (77°F)ISO/TR14396 inlet air standard
OtherRating condition (gas)100 kPa (29.61 in Hg) and 25°C (77°F)SAE J1349 standard
OtherStall Torque Ratio (TH55-E70)2.23
OtherStall Torque Ratio (TH55-E90)2.23
OtherTotal cylinder displacement928CU IN
PressureExhaust system backpressure (maximum allowable)10.0kPa
PressureMaximum allowable fuel return line restriction14.8in-HG
PressureMaximum allowable fuel supply line restriction8.0in-HG
PressureMaximum allowable intake restriction with clean element15in-H2O
PressureMaximum allowable intake restriction with dirty element25in-H2O
PressureMaximum allowable system back pressure40in-H2O
PressureMaximum pressure drop from compressor outlet to manifold inlet (or mixer inlet for EGR)4.4in-HG
PressureNormal fuel pressure in a clean system90.1PSI
PressureRadiator air flow restriction (system)0.12kPa
PressureWS255 pump plunger load238,000lb (107,960 kg)
PressureWS273XD pump plunger load275,000lb (124 738 kg)
PressureWS305XD pump plunger load250,000lb (113 398 kg)
SpeedMaximum Input Speed (TH55-E70/TH55-E90 transmissions)1970rpm
SpeedMinimum cranking speed required for start115RPM
SpeedRated Input Speed (TH55-E70/TH55-E90 transmissions)1900rpm
TemperatureExhaust stack gas temperature531.1deg C
TemperatureLowest ambient start temperature without aids32deg F
TemperatureMax. allowable combustion air inlet temperature49deg C
TemperatureMaximum allowable fuel temperature at engine outlet225deg F
TemperatureMaximum allowable fuel temperature at transfer pump inlet140deg F
TemperatureMaximum allowable jacket water outlet temperature219deg F
TemperatureRadiator cooling package design ambient temperature48.9°C (120°F)coolant mixture 50/50 (water/Caterpillar Extended Life Coolant), maximum elevation 1524 m (5000 ft)
TorqueAir compressor SAE "A" hydraulic pump drive maximum torque (374 L/min and 467 L/min compressors)60N•m (44 lb-ft)C7, C9 ACERT
TorqueAir compressor maximum torque (374 L/min / 13.2 cfm @ 1250 rpm, C7/C9)60N·m (44 lb-ft)374 L/min (13.2 cfm) @ 1250 rpm
TorqueAir compressor maximum torque (467 L/min / 16.5 cfm @ 1250 rpm, C7/C9)60N·m (44 lb-ft)467 L/min (16.5 cfm) @ 1250 rpm
VoltageVoltage level adjustment+/-5.0%
VoltageVoltage regulation, steady state+/-1.0%

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

FluidGradeStandardAmbientCapacityNotes
Coolant50/50 (water/Caterpillar Extended Life Coolant)below 48°CRadiator cooling packages designed for up to 48.9°C (120°F) ambient up to a maximum elevation of 1524 m (5000 ft)
Coolant50/50 mixture water/Caterpillar Extended Life Coolantbelow 48°CRadiator 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)
Engine oilEPA 2D 89.330-96 (fuel reference, Diesel <6.6 L, density 0,845-0,850 kg/L a 15 °C)Reference condition only, not a lubricant recommendation
Engine oillow sulfated ash oilRequired for U.S. EPA Tier 4 Final, EU Stage IV engines.
FuelUltra Low Sulfur Diesel (ULSD)Contains less than or equal to 15 parts per million sulfur (mg/kg); required for U.S. EPA Tier 4 Final, EU Stage IV engines. B20 biodiesel capability available.
Fuel35° API gravity at 60°F (16°C)LHV 18,390 Btu/lb (42 780 kJ/kg)Fuel at 85°F (29°C) weighing 7.001 lbs/U.S. gal (838.9 g/liter)
Fuel35° API gravity, LHV 42 780 kJ/kg (18,390 btu/lb)SAE J1995Diesel engines 7 liter and higher; used at 29°C (84.2°F) with density 838.9 g/L
FuelEPA 2D 89.330-96EPA 2D 89.330-96Diesel engines up to 6.6 liter; density 0.845-0.850 kg/L @ 15°C (59°F); fuel inlet temperature 40°C (104°F)
FuelNo. 2 dieselFuel oil of 35° API gravity, LHV 42 780 kJ/kg (18,390 Btu/lb)
Fueldry natural gas, LHV 35.54 MJ/Nm3 (905 btu/ft3)Gas ratings based on SAE J1349 standard conditions of 100 kPa (29.61 in Hg) and 25°C (77°F)

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

VoltagePhaseConnectionLeadsNotes
33 Phase Star (6 Wire)Standard connection
3Parallel Star (12 Wire)
3Series Star (12 Wire)

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

Common questions

What size generator is the Caterpillar C15 ACERT?

The Caterpillar C15 ACERT is rated 350 kW standby (400.0 kVA).

What engine does the Caterpillar C15 ACERT use?

The Caterpillar C15 ACERT is powered by the Caterpillar C15 ACERT engine.

What kind of fuel does the Caterpillar C15 ACERT run on?

The Caterpillar C15 ACERT runs on diesel.

What's the oil capacity on a Caterpillar C15 ACERT?

The Caterpillar C15 ACERT engine in the Caterpillar C15 ACERT has an oil capacity of 115.0 liters.

How much coolant does the Caterpillar C15 ACERT hold?

The Caterpillar C15 ACERT cooling system holds 15.2 liters (4.0 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the continuous rating of the Caterpillar C15 ACERT?

The Caterpillar C15 ACERT is rated 320 kW prime (365 kVA), against 350 kW standby.

What is the dry weight of the Caterpillar C15 ACERT?

The Caterpillar C15 ACERT has a dry weight of 1542 kg (3399 lb).

What voltages is the Caterpillar C15 ACERT available in?

The Caterpillar C15 ACERT is offered in 400 V.

What oil filter fits the Caterpillar C15 ACERT?

The Caterpillar C15 ACERT uses oil filter part number 588-1049.

What fuel filter does the Caterpillar C15 ACERT use?

The Caterpillar C15 ACERT uses fuel filter part numbers 356-1428, 588-2631.

Which air filter part number does the Caterpillar C15 ACERT take?

The Caterpillar C15 ACERT uses air filter part numbers CATERPILLAR 1063973, CATERPILLAR 612506.

Parts

21
Part #DescriptionQtySystem
10R-9925Oil Filter1Oil filter Amazon eBay
356-1428Fuel Filter1Fuel filter Amazon eBay
588-1049Engine Oil Filter1Oil filter Amazon eBay
588-2631Water Separator and Fuel Filter1Fuel filter Amazon eBay
95-ampAlternator, 95-ampAlternator Amazon eBay $237.95 FridayParts $166.73
AN500T0143STARTER MOTORStarter Amazon eBay
AN500T0144STARTER MOTOR - w/DriveStarter Amazon eBay
BXS00001-UpOil Filter1Oil filter Amazon eBay
MXS00001-UpFuel Filter1Fuel filter Amazon eBay
10R-9923Exhaust Manifold Stud1Service part / kit Amazon eBay
173-6532Radio 12V AM/FM Deluxe1Service part / kit Amazon eBay
175-6530Radio 12V AM/FMService part / kit Amazon eBay
214-7318Tool Kit and Box1Service part / kit Amazon eBay
588-0941Quick Disconnect Fittings2Service part / kit Amazon eBay
588-3621Variable Fan Hub1Service part / kit Amazon eBay
884949driftService part / kit Amazon eBay
AEHQ5645-02Parts book, CD rom1Service part / kit Amazon eBay
AEHQ5648-03735 Articulated TruckService part / kit Amazon eBay
AEHQ5679-02Parts book, paper1Service part / kit Amazon eBay
LEBE0009-00Cat NOx Reduction System and Clean Emissions Module (DOC+DPF+CRS)Service part / kit Amazon eBay
MCB3067460Piston1Service part / kit Amazon eBay

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Engine spec — C15 ACERT -18396631-004 (Caterpillar)Engine spec — LECH3874-07 (Caterpillar)Engine spec — LEGH0001-02 (Caterpillar)Engine spec — LEGH0001-03 (Caterpillar)Engine spec — LFDH5502-01 HR (Caterpillar)Engine spec — YEGT3002 (Caterpillar)Engine spec — lecw2462-06 (Caterpillar)Spec sheet — C10116252 (Caterpillar)Spec sheet — New-Caterpillar-CAT-C15-GC-submittal (Caterpillar)Spec sheet — SAEDC15-540 (Caterpillar)Reference — Aug+2010+Engine+Selection+Guide (Caterpillar)Reference — CAT WellServicing English (Caterpillar)Reference — Caterpillar-Oil-and-Gas-Ratings-Guide-2021-03 (Caterpillar)Reference — Final+Ratings+Guide LECW2462-15 9.8.11 (Caterpillar)Reference — Industrial rating guide (Caterpillar)Reference — LECW2462-01 (Caterpillar)Reference — LECW2462-25 1 oil gas (Caterpillar)Reference — LEDH6161-02 (Caterpillar)Reference — LEDH7559 (Caterpillar)Reference — LEGH0002 (Caterpillar)Reference — Ratings Guide Port LPCW2462-15 final LR (Caterpillar)Reference — ledh6161 attachments guide (Caterpillar)Parts manual — Cat-Tier-4-Interim-Technology (Caterpillar)Parts manual — LEXE7582-02 (Caterpillar)

This page was generated from the 24 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.