Mahle Rings Plasma Moly Steel Top Compression Ring 4.310in x .0625in .190in RW Moly Ring Set

These Mahle OE top compression rings are made from plasma moly steel, a strong material chosen for its durability and ability to handle the heat and pressure in the combustion chamber. They measure 4.310 inches in bore size with a .0625 inch thickness and a .190 inch ring depth, designed to create a tight seal between the piston and cylinder wall.

A well-built compression ring is crucial for maintaining engine performance. It prevents combustion gases from escaping past the piston into the crankcase, which helps ensure efficient power delivery and keeps oil from entering the combustion chamber. The plasma moly steel construction offers good wear resistance, helping these rings last through many miles of service.

This set is intended for specific engine builds and is not CARB approved, meaning it cannot be shipped to California. Always refer to your engine's service manual for proper installation procedures and specifications.