Mahle MS 4.500in+ .005in 1.5 1.5 3.0 mm File Fit Rings

This Mahle ring set includes the piston rings you need for an engine rebuild. Specifically, you get a set of file-fit rings with a 1.5mm top ring, a 1.5mm second ring, and a 3.0mm oil control ring. These rings are designed to be filed to achieve a precise gap, which is crucial for optimal engine performance and sealing, especially in modified or performance applications.

The rings in this set are sized at 4.500 inches plus an additional 0.005 inches, and they are intended for standard tension applications. File-fit rings offer a unique advantage for builders who need to dial in the exact ring-to-cylinder wall clearance. This level of customization helps ensure proper sealing under various operating conditions, reducing blow-by and improving compression. Mahle is a well-known name in engine components, and this set reflects their focus on providing parts for serious engine work.

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.