Mahle Rings Performance Steel Napier 2nd Ring 3.3661in x 1.2MM .135in RW Plain Ring Set

This Mahle OE Piston Ring Set features a 1.2mm thick Napier hook on the second ring, a design choice that helps improve oil control. The Napier hook design is a well-known feature for its ability to scrape oil off the cylinder wall and return it to the crankcase, which can help reduce oil consumption and prevent blow-by. These rings are made from steel, offering good durability for their application.

The set includes plain rings, meaning they don't have any special coatings or treatments beyond the base material. This straightforward construction makes them a solid option for many engine rebuilds where reliable performance is key. It's important to note that this specific ring set is not CARB approved and cannot be shipped to California.