Mahle MS 4.065in+ .005in 1.5 1.5 3.0 mm File Fit Rings

This Mahle MS piston ring set includes the specific rings you'll need for your engine rebuild: two 1.5mm compression rings and one 3.0mm oil control ring. These are file-fit rings, meaning they are designed to be precisely gapped by the installer to achieve a perfect fit in your cylinder bores. The set is sized at 4.065 inches plus an additional 0.005 inches, intended for engines that have been bored out or require a slightly larger ring size.

Mahle is a well-known name in engine components, and this set is built to meet the demands of an engine rebuild. The file-fit design is a practical choice for mechanics who want to ensure optimal sealing and performance by custom gapping each ring. This approach is common when rebuilding engines that have been previously overbored or when aiming for a very precise fit in a performance application.

Please note that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for correct installation procedures and ring gap specifications.