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Caterpillar 3054E Engine

The Caterpillar 3054E is an industrial and construction-grade, in-line 4-cylinder, four-stroke diesel engine designed for high reliability, compact footprints, and versatile application deployment. It features a heavily reinforced, cast-iron engine block alongside optimized cylinder head geometries to withstand intense continuous load demands. Developed with strong Perkins structural architecture influences, the "E" variant incorporates an Electronic Control Module (ECM). This system manages timing parameters and fuel delivery curves to enhance overall fuel efficiency, significantly suppress bare engine operational noise, and strictly adhere to EPA Tier 2 emission standards.

The fuel system uses a highly accurate Direct Injection (DI) design. Pressurized fuel management is driven by a digitally governed Bosch VP30 electronic fuel injection pump synchronized to the camshaft timing gears. A low-pressure mechanical or electrical fuel lift pump draws fuel through a primary water separator and an Ecoplus high-efficiency fuel filter to remove fine particulates. The high-pressure injection pump delivers fuel to the combustion chambers through multi-hole mechanical injectors. This process is monitored and adjusted by the Electronic Control Module (ECM) using data from an array of engine timing and temperature sensors to optimize emission and power parameters.

The lubrication circuit uses a pressurized wet-sump architecture driven by a high-efficiency, gear-driven oil pump that draws fluid from a cast-iron or stamped-steel oil pan. It features a typical refill capacity of 6.9 liters (7.3 US quarts) for standard industrial configurations. Structural contamination containment is handled by an advanced Ecoplus spin-on oil filter element situated on the serviceable side of the block. Pressurized oil channels pass through an integrated oil cooler assembly to keep fluid temperatures stable under prolonged high-load operation.

This engine utilizes a pressurized, liquid-jacketed thermal management design featuring a typical internal block-and-head capacity of 7.0 liters (7.4 US quarts), excluding external radiator plumbing. Coolant circulation is forced through the block channels by a heavy-duty, gear-driven centrifugal water pump that mounts directly to the front engine timing gear housing. Temperature states are mechanically regulated via a conventional wax-pellet thermostat assembly. This setup diverts coolant flow back through a bypass circuit during warm-up sequences, or outward to the radiator matrix once standard operational thresholds are breached.

General Technical Data

Engine Specifications

Engine Model ............... Caterpillar 3054E
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) ............... 75-125 (56-93)
Rated Engine Power (Agricultural), hp (kW) ............... 70-115 (52-86)
Rated Engine Power (Generator), hp (kW) ............... 60-122 (45-90)
Rated Engine Speed (Industrial), rpm ............... 2200-2400
Rated Engine Speed (Agricultural), rpm ............... 2200-2400
Rated Engine Speed (Generator), rpm ............... 1500-1800
Peak Torque ............... 320-460 Nm (236-339 lb-ft) at 1400-1700 rpm
Idle speed ............... 750-850 rpm
Aspiration Type ............... Turbocharged
Operating Speed ............... 2400 rpm
Compression Ratio ............... 17.0:1-18.3:1
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 ............... Belt-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 ............... Distributor
Fuel System Control ............... ADEM ECM
Governor Type ............... Electronic
Injection Pressure, bar ............... 900-1400
Fuel Type ............... Diesel Fuel

Dimensions and Weight

Overall Length, in (mm) ............... 32-38 (820-960)
Overall Width, in (mm) ............... 24-28 (600-700)
Overall Height, in (mm) ............... 33-37 (830-950)
Dry Weight, lbs (kg) ............... 770-960 (350-435)

Maintenance Data

Service Information

Thermostat begins opening ............... 82C (180F)
Thermostat fully open ............... 95C (203F)
Cooling system pressure ............... 70-100 kPa (10-15 psi)
Operating oil pressure ............... 300-450 kPa (44-65 psi)
Idle pressure ............... 100-150 kPa (15-22 psi)
Intake Valve Clearance, in (mm) ............... 0.010-0.012 (0.25-0.30)
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 ......................... CI-4 or higher
Engine Oil Capacity, qts (L) .................. 7.9-10.0 (7.5-9.5)
Coolant Capacity, qts (L) ............... 12.7-17.0 (12.0-16.0)

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 ............... 140-160 Nm (103-118 lb-ft)
Main bearing caps ............... 180-210 Nm (133-155 lb-ft)
Connecting rod bolts ............... 70-85 Nm (52-63 lb-ft)
Flywheel bolts ............... 160-190 Nm (118-140 lb-ft)
Crankshaft pulley bolt ............... 220-260 Nm (162-192 lb-ft)
Oil drain plug ............... 35-45 Nm (26-33 lb-ft)
Injector hold-down bolts ............... 25-30 Nm (18-22 lb-ft)

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• Caterpillar Engines Specs
  
• Cat C6.6 Specs
  
• Cat 3054T Specs
  
• Cat 3054 Specs
  
• Cat 3054C Specs
  
• Cat 3056 Specs
  
• Cat 3056T Specs
  
• Cat 3056E Specs
  

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