Cummins
Camshaft for Cummins engines
This camshaft regulates the timing of intake and exhaust valves within the engine valve train. It is designed for use in various Cummins engine applications.
Specifications
- Part number
- 3066888
- Brand
- Cummins
The camshaft 3066888 is a rotating component within the internal combustion engine that manages the opening and closing of intake and exhaust valves. By rotating in synchronization with the crankshaft and pistons, it ensures that the valves operate at the precise intervals required for the combustion cycle. This timing is necessary for the engine to maintain its power output and efficiency during operation.
This component is engineered for specific Cummins engine configurations used across heavy machinery, including construction equipment, cranes, and power generation units. The profile of the lobes on the shaft dictates the lift and duration of the valve movement, which directly influences the air intake and exhaust gas flow within the cylinders.
In a standard internal combustion engine, the camshaft acts as the primary mechanical controller for the valve train. As it rotates, the lobes push against the valve lifters or rocker arms to actuate the valves against spring pressure. Proper synchronization of this component is necessary to maintain the correct engine timing and prevent mechanical interference between the valves and the pistons.

