Mahle Rings Performance Napier Steel 2nd Ring 4.185in x 1.0MM .136in RW Plain Ring Set

Mahle OE is known for making reliable engine components, and these performance piston rings are no exception. This specific set is designed for engines needing a 4.185-inch bore with a 1.0mm top ring groove and a 0.136-inch second ring groove. The Napier-style second ring is a notable feature, helping to scrape excess oil from the cylinder wall more effectively than a standard ring, which can lead to improved oil control and reduced blow-by.

These rings are constructed from steel, offering a strong and durable option for your engine build. The plain finish means they are ready to install without any special coatings to break in, making them a straightforward choice for many engine rebuilding applications. If you're putting together a performance engine or rebuilding a worn one, these Mahle rings offer a well-built solution for the critical piston ring seal.