Mahle Rings Performance Napier THM-13 4.160 x .043 .135in RW Plain Ring Set

Mahle is known for making solid OE replacement parts, and this THM-13 ring set is no different. If you're rebuilding an engine and need a reliable set of piston rings, this is a well-built option. These rings are designed for a 4.160-inch bore and feature a .043-inch top ring and a .135-inch oil ring, with a Napier hook design on the second ring for improved oil control.

The Napier hook on the second ring helps to scrape oil from the cylinder wall as the piston moves down, which can lead to improved oil consumption and better overall engine performance. This set is a plain ring set, meaning it's designed for straightforward installation in many performance applications. It's a solid choice for anyone looking to restore or enhance their engine's internal components.