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Caterpillar 3054C Engine

The Caterpillar 3054C is a highly reliable, inline 4-cylinder, four-stroke cycle diesel engine. It is widely integrated into industrial applications, agricultural machinery, and earthmoving equipment. Engineered with a cast-iron engine block, it provides a highly durable construction capable of operating efficiently under severe conditions. The engine complies with U.S. EPA Tier 2 and EU Stage II equivalent emission standards, striking an optimal balance between reliable power density and lower sound emissions.

Direct Injection (DI) system providing refined fuel distribution and maximized thermal efficiency. Injection Equipment: Employs a robust mechanical fuel injection pump driven via the timing gear train. Filtration Circuit: Integrates high-efficiency primary and secondary Ecoplus fuel filter housings accompanied by a mechanical water-in-fuel separator mechanism. Fuel Lines: Standardized layout utilizing plastic J2044 quick-connect lines to ensure leak-free operation and ease of field assembly.

Forced-lubrication system powered by a gear-driven oil pump. Lubrication Filter Type: Spin-on Ecoplus oil filtration module featuring choice-of-position mountings for servicing flexibility. Refill Capacity: 6.9 to 11.0 liters (7.3 to 11.6 quarts), depending on the specific oil pan and application sump configuration. Service Interval: Standard maintenance cycles are specified at 500 hours under standard duty cycles.

Liquid-cooled circuit utilizing a gear-driven jacket water coolant pump. Coolant Capacity: 7.0 liters (7.4 quarts) for the core engine block cavity. Operating Profile: Standard top-tank temperature threshold reaches up to 108C (226F) to support minimized cooling pack size configurations. Coolant Medium: Recommended mixture consists of a 50:50 water and glycol compound.

General Technical Data

Engine Specifications

Engine Model ............... Caterpillar 3054C
Engine Type ............... 4-cycle inline 4-cylinder direct injection liquid-cooled diesel
Number of Cylinders ............... 4
Cylinder Arrangement ............... In-line
Engine Bore, in (mm) ............... 4.13 (105.0)
Engine Stroke, in (mm) ............... 5.00 (127.0)
Displacement, cu.in (L) ............... 268 (4.4)
Rated Engine Power (Industrial), hp (kW) ............... 75-110 (56-82)
Rated Engine Power (Agricultural), hp (kW) ............... 65-100 (48-75)
Rated Engine Power (Generator), hp (kW) ............... 50-90 (37-67)
Rated Engine Speed (Industrial), rpm ............... 2200-2400
Rated Engine Speed (Agricultural), rpm ............... 2200-2400
Rated Engine Speed (Generator), rpm ............... 1800-2200
Peak Torque ............... 300-420 Nm (221-310 lb-ft) at 1400-1600 rpm
Idle speed ............... 750-850 rpm
Aspiration Type ............... Turbocharged
Operating Speed ............... 2400 rpm
Compression Ratio ............... 17.0:1-18.5:1
Firing Order ............... 1-3-4-2
Crankshaft Type ............... Forged steel
Piston Type ............... Cast-aluminum alloy
Con Rod Type ............... Forged steel
Cylinder Block Type ............... Cast iron
Cylinder Head Type ............... Cast iron
Rotation (Viewed from Flywheel End) ............... Counterclockwise
Lubrication System ............... Full-pressure
Oil Pump Type ............... Gear-driven
Oil Filter Type ............... Full-flow, spin-on
Cooling System ............... Liquid-cooled
Water Pump Type ............... Gear-driven, centrifugal
Air Cleaner Type ............... Dry dual-stage
Starting System ............... Electric Starter
Electrical System ............... 12V or 24V
Alternator Rating, Amps ............... 45-90

Fuel System

Fuel System ............... Direct injection
Injection Pump Type ............... Mechanical
Fuel System Control ............... ECM
Governor Type ............... Mechanical
Injection Pressure, bar ............... 250-300
Fuel Type ............... Diesel Fuel

Dimensions and Weight

Overall Length, in (mm) ............... 37.4-41.3 (950-1050)
Overall Width, in (mm) ............... 25.6-28.3 (650-720)
Overall Height, in (mm) ............... 33.5-36.2 (850-920)
Dry Weight, lbs (kg) ............... 950-1145 (430-520)

Maintenance Data

Service Information

Thermostat begins opening ............... 82C (180F)
Thermostat fully open ............... 95C (203F)
Cooling system pressure ............... 70-90 kPa (10-13 psi)
Operating oil pressure ............... 300-420 kPa (44-61 psi)
Intake Valve Clearance, in (mm) ............... 0.008-0.010 (0.20-0.25)
Exhaust Valve Clearance, in (mm) ............... 0.012-0.014 (0.30-0.35)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, 15W-40
API Service Classifications ......................... CH-4 or higher
Engine Oil Capacity, qts (L) .................. 11.6-13.7 (11.0-13.0)
Coolant Capacity, qts (L) ............... 12.7-15.8 (12.0-15.0)

Service Intervals

Change oil and filter ............... Every 250 hours
Replace fuel filters ............... Every 250 hours
Inspect air filter ............... Every 50 hours
Change coolant ............... Every 2 years
Valve-lash adjustment ............... Every 1000 hours
Injector inspection ............... Every 1000-1500 hours
Compression test ............... Every 2000 hours
Drain water separator ............... As required
Belt inspection ............... As required

Service Specifications

Cylinder Bore Inside Diameter, in (mm) ................ 4.1339-4.1350 (105.000-105.028)
Crankshaft Journal Outside Diameter, in (mm) ................ 2.9972-2.9980 (76.129-76.150)
Crank Pin Outside Diameter, in (mm) ................ 2.4996-2.5004 (63.490-63.510)
Crankshaft End Play, in (mm) ................ 0.0020-0.0150 (0.050-0.380)
Intake Valve Stem Outside Diameter, in (mm) ................ 0.3122-0.3130 (7.930-7.950)
Exhaust Valve Stem Outside Diameter, in (mm) ................ 0.3110-0.3118 (7.900-7.920)
Intake Valve Guide Inside Diameter (Installed), in (mm) ................ 0.3142-0.3154 (7.980-8.010)
Exhaust Valve Guide Inside Diameter (Installed), in (mm) ................ 0.3142-0.3154 (7.980-8.010)
Intake Valve Stem to Guide Clearance, in (mm) ................ 0.0012-0.0031 (0.030-0.080)
Exhaust Valve Stem to Guide Clearance, in (mm) ................ 0.0024-0.0043 (0.060-0.110)
Intake Valve Spring Free Length, in (mm) ................ 1.8898 (48.000)
Exhaust Valve Spring Free Length, in (mm) ................ 1.8898 (48.000)
Intake Cam Height, in (mm) ................ 1.7480 (44.400)
Exhaust Cam Height, in (mm) ................ 1.7480 (44.400)
Piston Pin Outside Diameter, in (mm) ................ 1.4997-1.5000 (38.092-38.100)
Piston Pin to Piston Bore Clearance, in (mm) ................ 0.0002-0.0007 (0.005-0.018)
Second Ring Side Clearance, in (mm) ................ 0.0028-0.0041 (0.070-0.105)
Oil Ring Side Clearance, in (mm) ................ 0.0016-0.0031 (0.040-0.080)
Top Ring End Gap, in (mm) ................ 0.0110-0.0220 (0.280-0.560)
Second Ring End Gap, in (mm) ................ 0.0150-0.0300 (0.380-0.760)
Oil Ring End Gap, in (mm) ................ 0.0100-0.0180 (0.250-0.460)

Tightening Torque Specs

Cylinder head bolts ............... 160-180 Nm (118-133 lb-ft)
Main-bearing caps ............... 190-210 Nm (140-155 lb-ft)
Connecting-rod bolts ............... 90-110 Nm (66-81 lb-ft)
Flywheel bolts ............... 180-200 Nm (133-148 lb-ft)
Crankshaft pulley bolt ............... 280-320 Nm (207-236 lb-ft)
Oil drain plug ............... 40-55 Nm (30-41 lb-ft)
Injector hold-down bolts ............... 25-30 Nm (18-22 lb-ft)

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• Cat 3056E Specs
  

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