Mahle Rings Performance Plasma Steel Top Ring 4.050in x 1.0MM .143in RW HVOF Moly Ring Set

These Mahle OE piston rings start with a plasma steel top ring, a tough material that holds up well under the heat and pressure of combustion. The top ring is 4.050 inches in bore size, with a 1.0mm thickness and a .143 inch ring width, designed for a precise fit in your engine's cylinders. They also feature an HVOF Moly coating, which is a high-velocity oxygen fuel process that applies a dense, wear-resistant layer of molybdenum. This coating helps reduce friction and wear on both the ring and the cylinder wall, contributing to a longer engine life and improved sealing.

When you're rebuilding an engine, getting the piston rings right is crucial for proper compression and oil control. Mahle has been a well-known name in engine components for a long time, and these rings are built to perform. The combination of plasma steel and HVOF Moly means they're well-built to handle the demands of an engine that's working hard, whether it's a daily driver or something you push a little harder.