Mahle Rings Perf Steel Napier 2nd Ring 3.771in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)

Mahle is well-known for making solid OE replacement parts, and this set of steel Napier 2nd rings is no exception. These rings are designed for a 3.771-inch bore and measure 1.0mm thick, with a .136-inch groove width. The Napier hook design on the second ring helps to scrape oil from the cylinder wall, which can improve oil control and reduce blow-by, especially in performance applications. This is a bulk pack containing 48 rings, making it a practical choice for shops or engine builders working on multiple engines.

These rings are constructed from durable steel, offering good wear resistance for their intended use. The plain finish means they are ready to install without any special coatings to worry about. Because they are designed as direct replacements, they fit right into the standard piston grooves for the specified bore size. This pack is a solid option for rebuilding or performance engine work where reliable piston ring function is critical.