Mahle Rings Performance Steel Napier 2nd Ring 4.075in x 1.5MM .151RW Plain Ring Set

When you're rebuilding an engine, getting the piston rings seated correctly is crucial for proper compression and oil control. This set from Mahle OE features a steel Napier second ring, which is designed to help prevent oil from getting past the piston and into the combustion chamber. The Napier hook shape helps scrape oil off the cylinder wall on the downstroke, while the steel construction offers good durability.

This particular ring set is designed for a 4.075-inch bore and features a 1.5mm second ring thickness with a .151-inch radial width. Mahle OE is a well-known name in engine components, and these rings are a solid option for many engine rebuild projects where a reliable seal is needed. They fit right into the piston grooves, making installation straightforward for someone familiar with engine assembly.