Mahle Rings Performance Plasma Steel Top Ring 4.285in x 1.0MM .143in RW HVOF Moly Ring Set

When you're rebuilding the top end of your engine, getting the piston rings right is crucial for proper sealing and performance. This set from Mahle OE features plasma-coated steel top rings, a well-built choice for those looking to restore or enhance their engine's compression.

The plasma coating on these top rings helps them resist wear and maintain a tight seal against the cylinder wall, even under demanding conditions. With a 1.0mm thickness for the top ring and a .143 inch radial width, they're designed to work effectively in many performance applications. The HVOF moly coating adds another layer of durability and improved lubrication retention, helping to keep friction down and oil control consistent.

This set is a solid option for engine builders who want reliable components for their rebuild project. Always refer to your vehicle's specific service manual for installation procedures and torque specifications.