Mahle MS 4.040in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings

The Mahle MS 4.040-inch +.005-inch file fit piston rings are precision-engineered components designed to ensure optimal sealing and performance in high-performance engines. Crafted with high-quality materials, these rings feature a 1.0mm top and second compression ring, along with a 2.0mm oil control ring, providing excellent wear resistance and durability. Their file fit design allows for precise sizing during installation, making them suitable for custom engine rebuilds and performance upgrades. These rings help maintain proper compression, reduce oil consumption, and enhance overall engine efficiency, making them ideal for enthusiasts seeking reliable, long-lasting performance.

Designed to fit a 4.040-inch bore with a +.005-inch oversize, these rings are compatible with a range of engines requiring precise clearance adjustments. They are suitable for use in various performance applications, including street, track, and rebuild projects, where durability and sealing are critical. Installation involves file fitting to achieve the exact specifications needed for your engine, ensuring a perfect seal and optimal function. These rings are intended for use in engines that require a custom fit, providing a high-quality solution for professional rebuilds and performance enhancements.