PIN 3V4908 - Caterpillar

Engine Specifications
Note: The front end of the engine is opposite the flywheel end of the engine. The left and the right side of the engine are determined from the flywheel end. The number 1 cylinder is the front cylinder.3054 Industrial Engines and Generator Set Engines
Illustration 1 g00662983
(A) Exhaust valves
(B) Inlet valves
Table 1
3054 Industrial Engine and Generator Set Engine Specifications
Operating Range (rpm) 1500 to 2800(1)
Number of Cylinders 4 In-Line
Bore 100 mm (3.9 inch)
Stroke 127 mm (5.0 inch)
Aspiration T(2) or NA(3)
Compression Ratio NA 16.5:1
T 16:1
Displacement 4 L (243.5 in 3 )
Firing Order 1-3-4-2
Rotation (viewed from flywheel) Counterclockwise
Valve Lash Setting (Inlet) 0.20 mm (0.008 inch)
Valve Lash Setting (Exhaust) 0.45 mm (0.018 inch)
(1) The operating rpm is dependent on the engine rating and the application.
(2) Turbocharged
(3) Naturally aspirated3056 Industrial Engines and Generator Set Engines
Illustration 2 g00662980
(A) Exhaust valves
(B) Inlet valves
Table 2
3056 Industrial Engine and Generator Set Engine Specifications
Operating Range (rpm) 1500 to 2800(1)
Number of Cylinders 6 In-Line
Bore 100 mm (3.9 inch)
Stroke 127 mm (5.0 inch)
Aspiration TA(2), T(3) or NA(4)
Compression Ratio NA 16.5:1
TA and T 16:1
Displacement 6 L (365 in3)
Firing Order 1-5-3-6-4-2
Rotation that is viewed from the flywheel Counterclockwise
Valve Lash Setting (Inlet) 0.20 mm (0.008 inch)
Valve Lash Setting (Exhaust) 0.45 mm (0.018 inch)
(1) The operating rpm is dependent on the engine rating and the application.
(2) Turbocharged aftercooled
(3) Turbocharged
(4) Naturally aspirated