3804406
Engine Piston Kit
Cummins®

A Engine Piston Kit with the part number 3804406 is a set of components that are used in internal combustion engines to transfer energy from expanding gas in the cylinder to the crankshaft via a piston rod. The kit includes pistons, piston rings, and wrist pins. The piston is a cylindrical component with one end open and one end closed. It moves up and down inside the cylinder bore as fuel is ignited, creating pressure that pushes it downward. The rings are placed around the circumference of the piston head to seal off combustion gases from entering or leaving the engine during operation. They also help lubricate and cool the cylinder walls as well as transfer heat away from the piston head. Finally, wrist pins connect each end of the connecting rod to each side of a piston's skirt providing stability and support during engine operation. This kit provides all necessary components for an effective repair or rebuild of an engine's pistons system.