Mahle Rings Perf Steel Napier 2nd Ring 3.952in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)

This set of Mahle OE piston rings features a 1.0mm Napier hook design on the second ring, a specific choice that helps manage oil better than a standard ring. These rings are made from performance steel and come in a bulk pack of 48, making them a solid option for engine builders working on multiple vehicles or performing a larger rebuild. The 3.952-inch diameter ensures a precise fit for the intended pistons.

The Napier hook design on the second ring is a notable feature for engine builders looking to improve oil control and reduce blow-by. This design helps scrape excess oil from the cylinder wall during the downstroke, preventing it from entering the combustion chamber. The steel construction offers durability for performance applications, and the plain finish is standard for this type of ring set. This bulk pack is ideal for shops or individuals who frequently rebuild engines and need a reliable supply of quality piston rings.