Mahle MS 4.155in+ .005in 1/16in 1/16in 3/16in File Fit Rings

This Mahle piston ring set includes the rings you need for one piston, with enough for a full engine set. You get the top compression ring, second compression ring, and the oil control ring. These are low-tension rings designed for a file-fit installation, meaning you'll adjust the end gap yourself to match your specific engine build. The set is sized at 4.155 inches with an additional 0.005 inches clearance, and features standard 1/16 inch thickness for the top two rings and a 3/16 inch thickness for the oil ring.

Mahle is a well-known name in engine components, and these rings are made to their standards. The file-fit design is common in performance and custom engine builds where precise end gap control is important for sealing and power. This allows you to fine-tune the fit for your particular cylinder bore and operating conditions. Remember that these rings are not CARB approved and cannot be shipped to California.