Komatsu
Crankshaft for Komatsu S6D170
This crankshaft is designed for use in Komatsu S6D170 engines. It serves as the primary rotating component that converts the linear motion of the engine pistons into rotational force.
Specifications
- Part number
- S6D170
- Brand
- Komatsu
The crankshaft, part number S6D170, acts as the central rotating shaft within the engine assembly. It is responsible for converting the reciprocating linear motion of the pistons into the rotational torque required to drive the machine drivetrain and hydraulic systems. This component features precision-machined connecting rod journals and main bearing journals, which facilitate the connection to the engine rods and support the shaft within the engine block.
This part is specifically engineered for the Komatsu S6D170 engine series. Proper installation and alignment of this component are necessary to maintain the rotational balance of the engine assembly and to ensure the correct operation of the internal combustion cycle.
In internal combustion engines, the crankshaft functions as the backbone of the power delivery system. It must withstand the significant torsional and bending forces generated during the power stroke of each cylinder. By providing a stable axis for rotation, the crankshaft allows for the smooth transfer of energy from the combustion process to the flywheel and the rest of the machine power train.

