Piston for Cummins 4BT/6 BT

The piston with part number 87-155200-02 is engineered for the Cummins 4BT and 6BT engine series. It operates with a reciprocating motion inside the cylinder, where it compresses the air-fuel mixture and captures the force generated by expanding combustion gases. This energy is then transferred through the piston to the connecting rod and the crankshaft to drive the engine. The component features precision-machined grooves designed to accommodate piston rings, which maintain a seal to preserve compression and regulate oil consumption.

This part is compatible with Cummins 4BT and 6BT engines commonly found in heavy machinery, including cranes, loaders, construction equipment, and power generators. Pistons serve as the primary moving interface within the combustion chamber, managing the high thermal and mechanical loads required for engine operation. By maintaining the correct geometry and seal, the piston ensures efficient combustion, consistent power output, and proper management of internal pressures during the power stroke.