Komatsu
Crankshaft for Komatsu machinery
This crankshaft component is designed for use in heavy-duty Komatsu diesel engines, serving as the primary rotating element that converts piston motion into mechanical power. It is compatible with various Komatsu excavators, wheel loaders, and bulldozers.
Specifications
- Part number
- 6138311010
- Brand
- Komatsu
The crankshaft 6138311010 functions as the central rotating component within Komatsu diesel engines. It converts the reciprocating linear motion of the engine pistons, produced during the combustion cycle, into the continuous rotational motion required to drive the transmission and the machine hydraulic systems. This component is engineered to manage the torque and mechanical loads generated during engine operation.
This part is compatible with a range of Komatsu heavy machinery, including excavators, wheel loaders, and bulldozers. The component is manufactured to specific dimensional tolerances to ensure proper fitment within the engine block and alignment with the main bearings. It is intended for use in engines where this specific part number is required for maintenance or overhaul procedures.
In internal combustion engines, the crankshaft works in conjunction with connecting rods to translate piston energy into rotational force. Proper balancing and alignment of this component are necessary to maintain engine stability and support the efficient transfer of power to the drivetrain.

