5579321
Cylinder Kit
Cummins®

A Cylinder Kit, also known as a Piston and Cylinder Assembly, is a component of an internal combustion engine. The kit consists of a cylinder block, piston, piston rings, and wrist pin. The cylinder block contains the combustion chamber where fuel is burned to generate power. The piston moves up and down within the cylinder to convert the energy from combustion into mechanical energy that powers the vehicle. Piston rings seal the gap between the piston and cylinder wall to prevent oil from leaking into the combustion chamber while also allowing for proper lubrication. The wrist pin connects the piston to the connecting rod which transfers power to the crankshaft. Cylinder Kits are typically sold as complete assemblies for easy installation in an engine rebuild or repair project. Part number 5579321 is specific to a particular make and model of truck and should be selected accordingly for proper fitment.