Mahle Rings Perf Plasma Moly Steel HV385 Top Ring 4.035in x 1.5MM .151in RW Ring Set (48 Qty Bulk)

These Mahle OE top rings are plasma moly coated, a tough surface treatment that helps reduce friction and wear, especially in high-performance applications. They're designed for a 4.035-inch bore size, with a 1.5mm thickness and a .151-inch groove width, fitting the HV385 profile. This bulk set includes 48 rings, making it ideal for engine builders working on multiple projects or high-volume shops.

The plasma moly coating is known for its durability and ability to seat well with cylinder walls, which is crucial for maintaining compression and preventing oil blow-by. This means you can expect a solid seal and improved engine efficiency, especially when you're pushing your engine hard. Mahle is a well-known name in engine components, and these rings are built to meet the demands of performance builds where reliability and longevity are key.

When you're rebuilding an engine, especially one that will see heavy use or higher performance levels, the piston rings are a critical component. They seal the combustion chamber, control oil consumption, and transfer heat. This set from Mahle OE offers a well-built solution with a focus on wear resistance and performance, ensuring your engine can handle the stress.