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Caterpillar 3054 Engine

The Caterpillar 3054 is an inline four-cylinder, four-stroke cycle diesel engine. Developed in collaboration with Perkins, it serves as a highly versatile and durable powertrain commonly utilized across industrial, agricultural, and construction platforms. The Caterpillar 3054 series is engineered for long-term reliability and low operating costs in heavy-duty applications. Known for its compact footprint and straightforward design, it balances thermal efficiency with low noise levels. Its construction uses a heavy-duty cast iron block and a conventional overhead valve layout driven by a pushrod actuation configuration.

Fuel System: Direct injection fuel architecture. High pressure is managed by a mechanical distributor-type injection pump (such as Bosch VE, Delphi/Lucas, or Stanadyne units) timed precisely to the engine camshaft. A mechanical camshaft-driven transfer pump draws fuel through prime sediment filters before delivery. For electronic variants (3054E), an Electronic Control Module (ECM) regulates pulse-width modulated (PWM) solenoids to manage fuel injection timing and volume to enhance combustion performance.

Lubrication System: Forced-feed system driven by an internal oil pump delivering oil to the main bearings, connecting rod journals, and overhead valve mechanism. Standard industrial sump capacities range from 6.9 to 8.1 liters depending on application framing. The layout uses standard spin-on, full-flow filter elements. Recommended fluids are Caterpillar DEO or high-quality 10W-30 / 15W-40 multi-grade engine oil.

Cooling System: Liquid-cooled system relying on a gear-driven water pump to circulate coolant through the engine block, cylinder head, and internal temperature regulator (thermostat). Basic system capacity begins around 7.0 liters for core engine configurations, scaling up to 18.0 liters on specialized marine or industrial radiator systems.

General Technical Data

Engine Specifications

Engine Model ............... Caterpillar 3054
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, hp (kW) ............... 85 (63)
Idle speed ............... 700-800 rpm
Aspiration Type ............... Naturally aspirated
Operating Speed ............... 2400 rpm
Compression Ratio ............... 16.2:1
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 element
Starting System ............... Electric Starter
Electrical System ............... 12V or 24V
Alternator Rating, Amps ............... 45-65

Fuel System

Fuel System ............... Direct injection
Injection Pump Type ............... Mechanical
Fuel Injector Type ............... Multi-hole pencil-type
Governor Type ............... Mechanical
Fuel Type ............... Diesel Fuel

Dimensions and Weight

Overall Length, in (mm) ............... 26.1 (665)
Overall Width, in (mm) ............... 24.4 (620)
Overall Height, in (mm) ............... 31.9 (810)
Dry Weight, lbs (kg) ............... 675 (305)

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 (0.20)
Exhaust Valve Clearance, in (mm) ............... 0.018 (0.45)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, 15W-40
API Service Classifications ......................... CG-4/SH or higher
Engine Oil Capacity, qts (L) .................. 10.0 (9.5)
Coolant Capacity, qts (L) ............... 10.5 (10.0)

Service Intervals

Change oil and filter ............... Every 250 hours
Replace fuel filters ............... Every 500 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
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 (Stage 1) ............... 90 Nm (66 lb-ft)
Cylinder Head Bolts (Stage 2) ............... 130 Nm (96 lb-ft)
Main Bearing Cap Bolts ............... 140 Nm (103 lb-ft)
Connecting Rod Cap Bolts ............... 90 Nm (66 lb-ft)
Flywheel Housing-to-Block Bolts ............... 75 Nm (55 lb-ft)
Flywheel-to-Crankshaft Bolts ............... 115 Nm (85 lb-ft)
Injector Clamp Bolt ............... 35 Nm (26 lb-ft)
Oil Pan Bolts ............... 27 Nm (20 lb-ft)
Fuel Injection Pump Mounting Nuts ............... 24 Nm (18 lb-ft)

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

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