Cummins
Crankshaft for Cummins K38
This crankshaft is designed for Cummins K38 and K TA38 engines. It converts the linear reciprocating motion of the pistons into the rotational force required to drive the engine output.
Compatible models
Specifications
- Part number
- 33172928
- Brand
- Cummins
The crankshaft 33172928 serves as the primary rotating component within the Cummins K38 and K TA38 engine series. It functions by converting the linear reciprocating motion generated by the pistons during the combustion cycle into rotational motion, which is then transferred to the transmission system to power the machinery. This component is engineered to manage the rotational forces and torque loads inherent in the operation of these heavy-duty engines.
This part is compatible with Cummins K38 and K TA38 engine models. It features precision-ground connecting rod and main bearing journals to maintain proper clearance and lubrication flow within the engine block. The component is manufactured to meet the specific dimensional and structural requirements of the Cummins K38 series to ensure proper alignment and balance during engine rotation.
In internal combustion engines, the crankshaft acts as the central axis for power delivery. It connects to the pistons via connecting rods and is supported by main bearings within the engine crankcase. Precise balancing of this component is necessary to minimize internal vibration and ensure smooth operation across the engine's power band.

