Mahle Rings Performance Plasma Steel Top Ring 4.190in x 1.0MM .143in RW HVOF Moly Ring Set

If you're rebuilding the top end of your engine, getting the right piston rings is crucial for sealing and performance. These Mahle OE performance plasma steel top rings are designed to ensure a solid seal between your pistons and cylinder walls. This helps maintain proper compression and oil control, which are key for your engine to run smoothly and efficiently.

These rings feature a plasma-sprayed steel construction for durability. The 1.0mm top ring and 0.143 inch second ring dimensions are common for many performance builds. The HVOF moly coating on the second ring helps reduce friction and wear, contributing to a longer ring life and improved oil control. They fit a 4.190 inch bore size, so make sure that matches your engine's specifications.