Mahle Rings Performance Plasma Steel Top Ring 3.805in x 1.0MM .143in RW HVOF Moly Ring Set

This is a Mahle OE performance plasma steel top ring set, designed for a 3.805-inch bore. These rings are crucial for sealing the combustion chamber, ensuring your engine runs efficiently and powerfully. The plasma-sprayed Moly coating on these top rings is a notable feature, offering improved wear resistance and helping to maintain a good seal even under demanding conditions.

Mahle has applied a High Velocity Oxygen Fuel (HVOF) thermal spray process to apply the Moly coating. This advanced application method creates a dense, well-bonded layer that stands up to friction and heat. This means better oil control and reduced blow-by, contributing to a healthier engine and more consistent performance over time. They are a solid option if you're rebuilding an engine and need reliable components.