Mahle Rings Perf Steel Napier THM-13 4.085in x 1.5MM .151 RW Plain Ring Set (48 Qty Bulk Pack)

Starting with a 4.085-inch bore size and a 1.5mm top ring thickness, this Mahle OE piston ring set is built for performance applications. The Napier hook design on the second ring helps to scrape oil from the cylinder wall, preventing it from entering the combustion chamber and contributing to better oil control. This bulk pack contains 48 individual ring sets, making it a solid option for engine builders working on multiple projects or high-volume shops.

These rings are constructed from durable steel, chosen for its strength and ability to withstand the pressures and temperatures found in performance engines. The plain finish on the rings is a straightforward design that focuses on reliable sealing and oil control. Mahle is a well-known name in engine components, and this set reflects their focus on providing well-built parts for engine rebuilding and performance tuning.