Mahle Rings Steel Napier THM-13 4.610 Bore x .043in .135 RW Plain Ring Set

If you're rebuilding the top end of your engine, getting the piston rings right is crucial for a good seal and proper compression. This Mahle OE Steel Napier ring set is designed for a 4.610 inch bore, featuring a .043 inch thickness for the top ring and a .135 inch width for the second ring. The Napier hook on the top ring helps it scrape oil down the cylinder wall, which is a smart design for keeping oil consumption in check.

Mahle is a well-known name in engine components, and these rings are built to meet OE specifications. The steel construction offers good durability, and the Napier design is a proven way to manage oil and maintain a tight seal between the piston and cylinder wall. Getting this seal right means your engine will run more efficiently and produce the power it's supposed to.