
3918986 Crankshaft
We mainly deals in Dongfeng truck accessories (engine/axle/gearbox/cabin), especially Dana axle accessories and Cummins engine parts (4BT, 6BT, 6CT, 6L, ISBE, ISDE, ISLE,ISF2.8, ISF3.8, NTA855, KTA19,KTA38, KTA50, M11, ISM, etc.) with great advantages
Product Descreiption
Basic Parameters
- Part No.: 3918986
- Material: High-strength forged alloy steel
- Structure: Integral forged type
- Applicable engine: Cummins diesel engine series
- Process: Precision machining, surface quenching & wear-resistant treatment
- Features: High rigidity, fatigue resistance, impact resistance
Installation Position
Installed inside the engine cylinder block, located at the bottom of the engine, connected with connecting rods, piston assemblies and flywheel, fixed by main bearing shells and main bearing caps.
Main Functions
- Convert the reciprocating linear motion of pistons into rotational mechanical power.
- Drive engine accessories such as oil pump, water pump and generator to work synchronously.
- Bear explosive impact force and transmission torque during engine operation.
- Cooperate with timing system to ensure accurate engine valve timing and firing sequence.
- Output power via flywheel to drive vehicle or mechanical equipment.




