3802747
Engine Piston Kit
Cummins®

The ENGINE PISTON KIT, part number 3802747, is a set of components that work together to convert fuel energy into mechanical energy. The kit includes one or more pistons, rings, and pins that are designed to fit a specific engine model. The piston is the heart of the engine and moves up and down inside the cylinder bore. It compresses air and fuel mixture during the intake stroke, ignites it during the combustion stroke, and expels exhaust gases during the exhaust stroke. The rings seal the gap between the piston and cylinder wall to prevent leakage of combustion gases into the crankcase. The pin connects the piston with connecting rod and transfers power from piston to crankshaft. A high-quality piston kit is essential for optimal engine performance and longevity as it directly affects compression ratio, fuel efficiency, horsepower output, emissions compliance, and overall reliability.