Mahle Rings Perf Plasma Moly Steel Top Comp 4.035in x .0625in .190 RW Moly Ring Set (48 Qty Bulk Pk)

When you're rebuilding an engine, especially one that's going to see some serious work, the piston rings are a critical component. These Mahle OE performance rings are built for those situations where you need reliable sealing and durability under stress. They're designed to fit a 4.035-inch bore, which is common in many performance V8 applications, and the top ring is a plasma moly steel type. This means it's treated for improved hardness and wear resistance, which is exactly what you want when you're pushing an engine hard.

Mahle has a long history in engine building, and these rings reflect that experience. The plasma moly coating on the top ring helps it seat quickly and maintain a good seal against the cylinder wall, even with higher cylinder pressures. The overall construction is solid, meant to handle the heat and stress of performance use. This particular set comes in a bulk pack of 48, making it a practical choice for shops or builders working on multiple engines or larger projects. You're getting well-made components from a trusted name in the industry, designed to help your engine perform and last.

Remember that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine build plans and manufacturer recommendations to ensure these rings are the right fit for your project.