The OTTO 313-3997 is a critical engine crankshaft designed for Caterpillar C13 engine rebuilding and repair. It effectively converts reciprocating motion into rotational power, supporting optimal engine performance, reduced vibration, and long service life in heavy machinery applications.

Restore your excavator engine’s power transmission with the OTTO 6754011310 Crankshaft (P/N: 6754-01-1310), a premium aftermarket replacement engineered for Komatsu PC200-8 excavators and 6D107 engines. This high-quality crankshaft ensures stable torque transfer and smooth operation, offering a cost-effective alternative to OEM parts while maintaining uncompromised durability for heavy-duty work.