Mahle Rings Performance Steel Napier 2nd Ring 3.3071in x 1.2MM .135in RW Plain Ring Set

These Mahle OE piston rings feature a 3.3071-inch diameter and a 1.2mm thickness for the second ring, which is a Napier style. The Napier hook design on the second ring helps to scrape oil from the cylinder wall more effectively, which can improve oil control and reduce blow-by. This set is made from steel, offering a solid option for engine rebuilds where reliable ring seal is important.

The 0.135-inch width of the second ring is a standard dimension, ensuring compatibility with many piston designs. Mahle is a well-known name in engine components, and this ring set is built to meet the demands of a properly functioning engine. When rebuilding an engine, the piston rings are a critical component for sealing the combustion chamber and managing oil, so choosing a well-made set like this is important for the longevity of your build.