Piston for Caterpillar

The piston, part number 87-152200-22, functions as the primary moving component within the engine cylinder. It is responsible for compressing the air-fuel mixture, receiving the force generated by combustion, and expelling exhaust gases. This reciprocating motion is transmitted through the connecting rod to the crankshaft, converting linear energy into rotational mechanical power for the machine.

This component is engineered for specific Caterpillar diesel engines used in equipment such as excavators, wheel loaders, bulldozers, and cranes. It features machined grooves designed to accommodate piston rings, which maintain the seal of the combustion chamber, manage heat transfer to the cylinder walls, and regulate oil consumption. Proper fitment and surface finish are required to maintain engine compression and operational efficiency.

In internal combustion engines, the piston acts as a movable barrier that defines the volume of the combustion chamber. By maintaining a tight seal against the cylinder bore, it ensures that the energy released during the power stroke is effectively harnessed to drive the engine output.