Mahle Rings Perf Plasma Moly Steel HV385 Top Ring 3.523in x 1.0MM .143in RW Ring Set (48 Qty Bulk)

These Mahle OE top piston rings are plasma moly steel, a strong material choice for performance applications. They measure 3.523 inches in bore diameter with a 1.0mm thickness and a .143 inch ring width, designed for demanding engine builds. The plasma moly coating on the top ring helps reduce friction and wear, which is crucial for maintaining cylinder sealing and engine longevity under stress.

Mahle is a well-known name in engine components, and this set reflects their focus on durable materials and precise manufacturing. The plasma moly steel construction means these rings are built to handle the heat and pressure found in performance engines, offering improved durability compared to standard cast iron rings. This bulk pack contains 48 rings, making it suitable for shops or builders working on multiple engines or larger projects.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine's service manual for proper installation procedures and ring gap specifications.