Description:
Cat top piston rings are split rings that fit into a groove on the OD of the piston body above the intermediate ring and the oil ring. Piston rings function to form a seal between the piston body and the cylinder wall that prevents the loss of combustion cylinder gases to the crank case, maintains a constant level of lubricating oil between the cylinder wall and the piston and regulates engine oil consumption by scraping oil from the cylinder wall back to the sump.

Attributes:
• Material: Steel
• Surface hardened
• Coated
• Gage Diameter: 170 mm (6.69 in)
• Height: 3.87 mm (0.152 in)
• Emissions control

Application:
Consult your owner's manual or contact your local Cat Dealer for more information.