Mahle Rings Perf Plasma Steel Top Ring 4.280in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

This bulk pack contains 48 sets of Mahle Performance Plasma Steel Top Rings, each designed for a 4.280-inch bore. These rings feature a 1.0mm top ring thickness and a .143-inch Napier hook, utilizing a High Velocity Oxy-Fuel (HVOF) Moly coating for improved durability and performance. This set is intended for engine builders or shops working on multiple performance builds.

The plasma-moly coating on these top rings is applied using the HVOF process, which creates a dense, well-bonded layer that resists wear and reduces friction. This is crucial for maintaining a good seal between the piston and cylinder wall under high-stress conditions, helping to prevent blow-by and ensure efficient combustion. The steel construction offers a strong foundation for the coating, providing a robust component for demanding engine applications.

When rebuilding or modifying an engine, selecting quality piston rings is essential for proper sealing, oil control, and overall engine health. These Mahle rings are a solid option for performance builds where reliability and longevity are key. Please note that these rings are not CARB approved and cannot be shipped to California.