3800784
Engine Piston Kit
Cummins®

An engine piston kit, with part number 3800784, is a set of components that form the internal combustion system's reciprocating assembly. The kit contains a piston, connecting rod, wrist pin and necessary rings. Pistons are cylindrical components made from aluminum or cast iron alloys that compress fuel and air mixture in the cylinder bore when ignited by the spark plug. The connecting rods transmit energy from the pistons to crankshaft through its rotational motion. Wrist pins connect the piston to the connecting rod and allow for free movement between two components. Piston rings seal off combustion gases in the cylinder bore while also facilitating heat transfer between piston and cylinder walls. These parts are critical for engine performance as they help convert thermal energy into mechanical energy that powers trucks' wheels while ensuring optimal fuel efficiency and emissions control.