Mahle Rings Steel Napier THM-13 4.625 Bore x .043in .135 RW Plain Ring Set

Mahle is known for making OE-quality engine components, and this Steel Napier THM-13 ring set is a solid example of their work. If you're rebuilding an engine that requires a 4.625 inch bore, these rings are built to fit right in. The Napier hook design on the second ring helps to scrape oil off the cylinder wall more effectively, which can improve oil control and reduce blow-by.

These rings are made from steel and feature a .043 inch thickness for the top and second rings, with a .135 inch oil ring. This combination is designed for reliable performance in a wide range of applications. They are a plain ring set, meaning they don't have any special coatings, making them a straightforward choice for many engine builds.