4376543
Engine Piston Kit
Cummins®

The Engine Piston Kit (part number: 4376543) is a set of components that work together to convert the energy from fuel combustion into mechanical power. The kit includes the piston, piston rings, and wrist pin. The piston is a cylindrical component that moves up and down in the engine cylinder bore. It is responsible for compressing the air-fuel mixture and transmitting force to the connecting rod, which then rotates the crankshaft. The piston rings are installed around the circumference of the piston to create a seal between it and the cylinder wall. They prevent oil from entering into combustion chamber while keeping compression from escaping past the piston. Lastly, wrist pin connects both ends of each connecting rod with its corresponding pistons allowing them to rotate around its axis as it moves up and down within an engine cylinder bore. Together these components ensure efficient engine performance by providing smooth reciprocating motion without any leaks or loss of power.