Mahle Piston Ring S42170

Premium; Single Cylinder Set Only MAHLE Original can say that it is the largest manufacturer of piston rings in the world today. This stability leads to a tremendous research and development foundation, which guarantees that MAHLE Original is the highest performing ring in both light vehicle and performance applications. MAHLE Original® piston rings lead the way in ring technology and innovation for the Aftermarket – after all, MAHLE is the largest manufacturer of piston rings in the world. MAHLE Original rings are at the forefront of light vehicle piston ring technology. Extensive OE connections mean that MAHLE Original rings have the technological edge. The MAHLE Original performance line proves time and again that it should be the ring of choice under every hood - regardless of the application. Steel piston rings offer higher tensile strength, higher yield strength, greater fatigue life, and greater hardness while still offering a lower ring mass. These factors lead to better stress resistance, reduced groove pound-out, longer service life, better conformability, superior oil economy, and improved blow-by control while still lowering friction. Whether you're repairing a modern computer controlled engine, or rebuilding an older engine, be sure to specify MAHLE Original piston rings, formerly Perfect Circle - trusted by professional automotive technicians for over 100 years.