HomeCaterpillarCaterpillar 3612

Caterpillar 3612 Generator Set

The Caterpillar 3612 is a 4000 kW (5375 kVA) diesel standby generator set powered by a Caterpillar 3054C engine. It is available at 50 V, 50 Hz. It holds about 9 L (2.4 gal) of oil and 18 L (4.8 gal) of coolant. The set measures 4562×1704×3231 mm (179.6×67.1×127.2 in) and weighs about 25140 kg (55424 lb).

4000 kW
Standby
4.4 L
Displacement
9.0 L
Oil capacity
4
Document types

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Compare with other 4000–4005 kW Diesel generators →

Specifications

Fueldiesel
Frequency50.0 Hz
Standby power4000 kW
Standby kVA5375
Prime power3640 kW
EmissionsNC
Oil capacity9.0 L
Voltage options50 V
Dimensions (L×W×H)4562×1704×3231 mm
Dry weight25140 kg

Engine

Caterpillar 3054C
Oil capacity9.0 L
Coolant capacity18.0 L
Displacement4.4 L
AspirationNA, T, TA
Rated speed2200 rpm

Maintenance & consumables

for the Caterpillar 3054C
ItemSpecCapacityPart #Interval
Air filter500 hr
Fuel filter1000 hr
Oil filter500 hr
Battery
BeltCorrect tension 535 N (120 lb)25 hr
CoolantMax 6% SCA with coolant; max 8% SCA with water6000 hr
Oil500 hr
Spark plugReplace spark plugs every 1,000 hours or as needed.1000 hr

Compatible filters for the Caterpillar 3054C — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: Caterpillar 2788275 Caterpillar 2788276 Caterpillar D141106 Caterpillar 2229020 Caterpillar 2065234
  • Fuel filter: Caterpillar 1512409 Caterpillar 1R0753 Caterpillar 1R0763 Caterpillar 8N9803 Caterpillar 4415111
  • Oil filter: Caterpillar IR1807 Caterpillar 2409393 Caterpillar 1W3300 Donaldson P551807 Donaldson P554407

Service intervals

4
ItemActionHoursMonthsNotes
oilChange500 hr3000 Series service intervals increased to 500 hours as standard (3013C, 3024C, 3054, 3056)
minor overhaulOther20000 hr3600 engines designed to run 20 000 hours between minor overhauls using No. 2 fuel
major overhaulOther40000 hr3600 engines designed to run 40 000 hours between major overhauls using No. 2 fuel
cylinder liners and pistonsOther80000 hr3600 cylinder liners and pistons designed for 80 000 hours using No. 2 fuel

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

4
TypeItemValueUnitCondition
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
PressureUnit injector fuel injection pressure1240bar (18 000 psi)

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
CoolantCat DEACDiesel; 3,000 Service Hours or Three Years; annual S·O·SSM Level 2 coolant sampling and analysis
CoolantCat ELCDiesel; 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
CoolantCat NGECNatural Gas; 16,000 Service Hours or Three Years; use interval that occurs first
Engine oilCat NGEONatural Gas
Engine oillow sulfated ash oilRequired for U.S. EPA Tier 4 Final, EU Stage IV engines.
Engine oilCat Arctic DEO SYN SAE 0W-30-40°C to 30°CEngine Crankcase; Industrial Engines
Engine oilCat DEO SYN SAE 5W-40-30°C to 50°CEngine Crankcase; Industrial Engines
Engine oilCat DEO SAE 10W-30-18°C to 40°CEngine Crankcase; Industrial Engines
Engine oilCat DEO SAE 15W-40-9°C to 50°CEngine Crankcase; Industrial 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.
FuelNo. 2 fuel3600 engines designed for 80 000 hours on No. 2 fuel; ratings based on API gravity of 35 at 15 C (60 F), LHV of 42 780 kJ/kg used at 29 C (84 F) with a density of 838.9 g/L
GreaseCat Generator Set GreasePart Number 108-8611

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 3612?

The Caterpillar 3612 is rated 4000 kW standby (5375.0 kVA).

What engine is in the Caterpillar 3612?

The Caterpillar 3612 is powered by the Caterpillar 3054C engine.

What kind of fuel does the Caterpillar 3612 run on?

The Caterpillar 3612 runs on diesel.

How much oil does the Caterpillar 3612 take?

The Caterpillar 3054C engine in the Caterpillar 3612 has an oil capacity of 9.0 liters.

Which oil filter part number does the Caterpillar 3612 take?

The Caterpillar 3612 uses oil filter part numbers CATERPILLAR IR1807, CATERPILLAR 2409393.

What fuel filter fits the Caterpillar 3612?

The Caterpillar 3612 uses fuel filter part numbers CATERPILLAR 1512409, CATERPILLAR 1R0753.

What air filter does the Caterpillar 3612 use?

The Caterpillar 3612 uses air filter part numbers CATERPILLAR 2788275, CATERPILLAR 2788276.

Parts

99
Part #DescriptionQtySystem
035-8059Glow plugGlow plug eBay $23.22 FridayParts $13.25
102-9720Cleaning Kit (detergent and oil for AIRSEP air cleaner elements)Air filter eBay
110-6326Air Primary1Air filter Amazon eBay $40.00 KuduParts $30.00
123-2367Air Primary1Air filter Amazon eBay $89.77 KuduParts $30.00
133-5673Fuel/Water Separator1Fuel filter Amazon $47.30 eBay $19.99 eBay $19.99 KuduParts $19.00
138-3100Filter water separatorFuel filter eBay $14.99 KuduParts $34.00
138-6744Water pump repair kitPump eBay $179.99
142-5867Front sealSeal eBay $41.66 FridayParts $39.38
142-5868Rear sealSeal eBay $45.71 FridayParts $26.95
161-4113Oil pumpPump eBay $1200.00 FridayParts $510.00
174-6854Hydrosolv 100 liquid cleaner, 19 L (5 US gallon)1Fluid Amazon eBay
1R-0716Engine Oil1Oil filter Amazon eBay $44.90 eBay $44.90 KuduParts $80.00
1R-0749Fuel Secondary - ADV1Fuel filter Amazon $90.99 Amazon $19.99 eBay $135.88 eBay $135.88 KuduParts $17.00
1R-1808Engine Oil - ADV2Oil filter Amazon $70.99 eBay $141.00 eBay $59.99 KuduParts $80.00
1R0716Filter oilOil filter Amazon eBay $44.90 eBay $44.90 KuduParts $80.00
1R0749Filter fuelFuel filter Amazon $90.99 Amazon $19.99 eBay $135.88 eBay $135.88 KuduParts $17.00
1U-5490Hydrosolv 4165 liquid cleaner, 19 L (5 US gallon)1Fluid Amazon eBay
1U-5492Hydrosolv 100 Liquid Cleaner, 19 L (5 US gal)Fluid eBay
1U-5718Vacuum Pump1Pump Amazon eBay $87.99
1W1700Lift/transfer pumpPump eBay $168.00 FridayParts $65.00
225-3150Starter motorStarter eBay $699.99 SinoCMP $289.00
339-7767AlternatorAlternator eBay $147.25 FridayParts $157.50
384-8611Lift/transfer pumpPump eBay $358.00 SinoCMP $219.00
3T8705Glow plugGlow plug eBay $13.99 FridayParts $19.56
3T8706Glow plugGlow plug eBay $33.96 FridayParts $47.99
4N1151Gasket oil panGasket eBay $15.24
4P-7610Magnetic Pickup Group (engine speed/timing sensor in flywheel housing)Sensor Amazon eBay eBay
4W8063ThermostatThermostat eBay $12.55 FridayParts $18.99
5N-5561Silicone LubricantFluid Amazon eBay
6N6798V-beltBelt eBay $41.15
6T1395AlternatorAlternator eBay $444.93 FridayParts $223.95
7W-2326Engine Oil1Oil filter Amazon eBay $24.82 eBay $14.00 KuduParts $25.00
7W-2327Engine Oil2Oil filter Amazon eBay $22.00 eBay $22.00 FridayParts $149.99
7W2327Filter oilOil filter Amazon eBay $22.00 eBay $22.00 FridayParts $149.99
8S-2245Injection Cleaning Tool Group (fuel injection nozzles)Injector eBay
9G8010SwitchSensor eBay $39.00 FridayParts $16.90
9L6639V-beltBelt eBay $19.99
ECC328Speed ControllerSpeed controller Amazon eBay
PF-300CPneumatic TirePump Amazon eBay $195.60 FridayParts $40.95
PS-300CPneumatic TirePump Amazon eBay $195.60 FridayParts $99.00
RE506105STARTER (12 V)Starter Amazon eBay $146.29 FridayParts $317.99
RE528929STARTERStarter Amazon eBay $272.95 FridayParts $241.13
RE532716SHORT BLOCK ASSEMBLY (Also Order Engine Overhaul Gasket Kit and Cylinder Head Bolt Kit)1Gasket Amazon eBay
SE501853STARTER (REMAN FOR RE506105) (12 V)1Controller Amazon eBay $307.99
g00283558Starting AidStarting aid Amazon eBay
i01377208Do not operate the engine unless the instructions and warnings in the Operation and Maintenance Manual are understood.Warning label Amazon eBay
0676879Connecting rodService part / kit Amazon eBay $74.38 FridayParts $77.56
169-8373Fluid Sampling Bottle1Service part / kit Amazon eBay $29.99
2255441Connecting rod (Grade L)Service part / kit Amazon eBay $68.18 FridayParts $94.00
2255453Connecting rod (Grade J)Service part / kit Amazon eBay $82.72 FridayParts $79.86
2255454Connecting rod (Grade H)Service part / kit Amazon eBay $91.14 FridayParts $104.50
249-0439Oxidation Catalyst Assembly - RoundService part / kit Amazon eBay
249-0474Oxidation Catalyst Assembly - RectangleService part / kit Amazon eBay
249-0476Oxidation Catalyst Assembly - RectangleService part / kit Amazon eBay
249-0477Oxidation Catalyst Assembly - RectangleService part / kit Amazon eBay
256-0331Oxidation Catalyst Assembly - RoundService part / kit Amazon eBay
2562235Connecting rodService part / kit Amazon eBay $100.08
4C-9301Coolant Conditioner Test KitService part / kit Amazon eBay $30.00
5P-3413Pipe Sealant for external threads of the zinc rod plugService part / kit eBay $12.37
8N1728Connecting rodService part / kit Amazon eBay $249.99
8T-5296Coolant Conditioner Test Kit1Service part / kit Amazon eBay eBay
9S-3263Compound for the shoulder of a new zinc rodService part / kit eBay $30.78
C11/C13Cat® Engines with ACERT® TechnologyService part / kit buy
C15/C18Cat® Engines with ACERT® TechnologyService part / kit buy
C27/C32Cat® Engines with ACERT® TechnologyService part / kit buy
C6.6Cat® Engines with ACERT® TechnologyService part / kit KuduParts $130.00
LEXE0363-00January 2012Service part / kit Amazon eBay
QEHQ1025Not explicitly stated in the documentService part / kit Amazon eBay
QEHQ9778-01Replaces QEHQ97781Service part / kit Amazon eBay
QEHQ9995Not explicitly stated12/03Service part / kit Amazon eBay
g00104545Illustration 41Service part / kit Amazon eBay
g00107406Illustration 1: Safety message for the clutch located on the clutch housing (if equipped).Service part / kit Amazon eBay
g00107407Illustration 2: Safety message for rotating gears that can cause entanglement of the fingers and hands.Service part / kit Amazon eBay
g00283559If the engine is equipped with an air inlet heater for cold weather starting, do not use starting aids that contain an aerosol such as ether.Service part / kit Amazon eBay
g00294510Improper jumper cable connections can cause an explosion resulting in personal injury.Service part / kit Amazon eBay
g00687600Always use a board or cardboard when you check for a leak. Leaking fluid that is under pressure can penetrate body tissue.1Service part / kit Amazon eBay
g00702020Wear a hard hat, protective glasses, and other protective equipment, as required.1Service part / kit Amazon eBay
g00702022Caterpillar equipment and replacement parts that are shipped from Caterpillar are asbestos free.1Service part / kit Amazon eBay
g00704000Illustration 81Service part / kit Amazon eBay
g00704059Illustration 91Service part / kit Amazon eBay
g00704135Illustration 101Service part / kit Amazon eBay
g00706404Illustration 71Service part / kit Amazon eBay
g01154807Typical example2Service part / kit Amazon eBay
g01154809乙醚警告标签(2)Service part / kit Amazon eBay
g01353108Illustration 2 - Location and description of warning signsService part / kit Amazon eBay
i01097883Important Safety InformationService part / kit Amazon eBay
i01359666Crushing Prevention and Cutting Prevention1Service part / kit Amazon eBay
i01372247Mounting and Dismounting1Service part / kit Amazon eBay
i01372262Illustration 4: Safety message for flammable fluids and hot surfaces.Service part / kit Amazon eBay
i01480768Burn Prevention1Service part / kit Amazon eBay
i01658146Important Safety InformationService part / kit Amazon eBay
i01805780Before Starting Engine1Service part / kit Amazon eBay
i02136012Engine Starting1Service part / kit Amazon eBay
i02345910Do not allow unauthorized personnel on the engine or around the engine when the engine is serviced.Service part / kit Amazon eBay
i02469632Electrical SystemService part / kit Amazon eBay
i03560601Before Starting EngineService part / kit Amazon eBay
i03684547Operation & Maintenance Manual (SEBU7655-01)Service part / kit Amazon eBay
i03698546Safety MessagesService part / kit Amazon eBay
i03704500General Hazard Information (Illustration 6)Service 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.

Fuel consumption

RatingLoadL/hgal/h
Continuous25%185.448.9
Continuous50%315.083.0
Continuous75%447.5118.0
Continuous100%585.0154.4
Prime25%162.542.9
Prime50%287.275.8
Prime75%463.0109.0
Prime100%537.2141.8

Available documents

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