Mahle Rings Performance Plasma Moly Steel HV385 Top Ring 3.444in x 1.0MM .143in RW Moly Ring Set

These Mahle top rings are made from plasma moly steel, a strong material chosen for its durability and ability to handle heat. The 1.0mm thickness of the top ring is a common spec for performance applications, helping to seal the combustion chamber effectively. When you're rebuilding an engine, getting the piston rings right is crucial for proper compression and oil control.

Mahle has been in the engine parts game for a long time, and these rings reflect that experience. The plasma moly coating on the top ring helps reduce friction and wear, which means they'll last longer and keep your engine running smoothly. They're designed to fit a 3.444-inch bore, and the .143-inch ring width is standard for many applications. If you're putting an engine back together, these are a well-built choice that you can count on.