4955348
Engine Piston Kit
Cummins®

The Engine Piston Kit, part number 4955348, designed for Cummins® commercial trucks, is a critical component of the engine's combustion system. The piston kit consists of the piston itself, piston rings, wrist pin, and retaining clips. The main role of the engine piston kit is to convert the energy produced during the combustion process into mechanical motion. It achieves this by transferring the force generated by the expanding gases in the combustion chamber to the connecting rod and ultimately to the crankshaft. The piston, usually made of aluminum alloy, is precisely engineered to fit within the cylinder bore. It moves up and down within the cylinder, creating a sealed chamber where fuel and air mixture ignites. The piston rings, located near the top of the piston, provide a tight seal against the cylinder walls, preventing any combustion gases from escaping and enhancing the overall efficiency of the engine. The wrist pin, also known as the piston pin, connects the piston to the connecting rod, allowing the reciprocating motion of the piston to be transferred. It is secured in place by retaining clips, which prevent any unwanted movement. In summary, the Engine Piston Kit, part number 4955348, is a vital component of the Cummins® commercial truck engine. It plays a crucial role in converting the energy of combustion into mechanical motion, ensuring the proper functioning and power generation of the engine.