Piston ring for Grove TM150

The piston ring 7753000304 is a component for internal combustion engines used in heavy machinery. It serves to seal the combustion chamber to maintain compression during the power stroke, transfers heat from the piston to the cylinder wall for cooling, and scrapes excess lubricant from the cylinder liner to control oil consumption. Proper sealing is necessary for maintaining engine efficiency and power output.

This part is compatible with the Grove TM150 crane. It installs onto the piston head to interface with the cylinder bore. These rings are designed to match the specific dimensions of the engine cylinders found in this model of mobile crane.

Piston rings are typically categorized into compression rings and oil control rings. Compression rings maintain the pressure seal, while oil control rings manage the lubrication film on the cylinder walls. During engine maintenance or a top-end rebuild, these rings are replaced to restore compression and prevent oil bypass, which can otherwise lead to increased exhaust smoke and power loss.