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Caterpillar 3054T Engine

The Caterpillar 3054T is a 4.4-liter, inline 4-cylinder, four-stroke cycle diesel engine. It features a turbocharged aspiration system designed to optimize power density and combustion efficiency in industrial, agricultural, and construction equipment. Built on a highly reliable Perkins-derived architecture, the engine combines mechanical simplicity with durable cast-iron structural components to provide a stable, high-torque power plant capable of operating under high-load continuous or intermittent service conditions.

Fuel Injection Type: Direct Injection (DI) system delivering atomized fuel directly into the piston combustion bowl. Fuel Injection Pump: Mechanically governed, high-pressure rotary injection pump timed precisely to the engine camshaft gear via a keyed drive shaft. Delivery System: Low-pressure mechanical lift pump transfers fuel from the supply tank through a multi-stage filtering process. Filtration and Separation: Standard configuration consists of a primary fuel filter, an integrated water separator assembly, and a manual fuel priming pump for system bleeding after service procedures.

Lubrication System Design: Full pressure lubrication system utilizing a gear-driven oil pump driven directly from the crankshaft. Filtration: Features an efficient, spin-on cartridge-style oil filter alongside a plate-type engine oil cooler to regulate fluid breakdown temperatures under load. Service Interval: 400 operating hours under normal conditions using standard multi-grade diesel engine oil (DEO 10W-30 or 15W-40).

Cooling System Design: Liquid-cooled, closed-circuit configuration leveraging a gear-driven centrifugal jacket water pump. Temperature Regulation: Uses a dedicated wax-pellet type thermostat to regulate coolant routing between the engine bypass and the radiator core assembly. Expansion Logic: System standard features incorporate a deaeration expansion tank to eliminate air pockets within the cooling jacket.

General Technical Data

Engine Specifications

Engine Model ............... Caterpillar 3054T
Engine Type ............... 4-cycle inline 4-cylinder turbocharged 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) ............... 108 (80)
Idle speed ............... 700-800 rpm
Aspiration Type ............... Turbocharged
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) .................. 9.0 (8.5)
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 3054 Specs
  
• Cat 3054C Specs
  
• Cat 3054E Specs
  
• Cat 3056 Specs
  
• Cat 3056T Specs
  
• Cat 3056E Specs
  

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