MAHLE Original piston rings are the most technically advanced piston rings in the industry. Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life. MAHLE Original piston rings lead the industry for the latest piston ring technology. PartNumber : mhl41441 Description : Engine Piston Ring Set Piston Ring Material : Chrome Carbon Steel Piston Ring Type : Premium Piston Ring Size : Standard Top Ring Thickness (Axial Height) : 0.0469 in Top Ring Material : Carbon Steel Second Ring Material : Cast Iron Second Ring Thickness (Axial Height) : 0.0586 in Oil Ring Assembly Thickness (Axial Height) : 0.156 in Oil Ring Assembly Material : Stainless Steel Item Grade : Premium Piston Ring Face Coating : Chrome Piston Ring Oversize : Standard Bore Diameter (in) : 3.1496 Size : Shallow Groove 1979-1981 Ford Courier Base L4.1989cc Engine Components::Piston Rings 1979-1981 Ford Courier XLT L4.1989cc Engine Components::Piston Rings 1979-1981 Mazda 626 Base L4.1970cc Engine Components::Piston Rings 1981 Mazda 626 LX L4.1970cc Engine Components::Piston Rings 1979-1981 Mazda B2000 Base L4.1970cc Engine Components::Piston Rings 1980-1981 Mazda B2000 Sundowner L4.1970cc Engine Components::Piston Rings 1980-1981 Mazda B2000 Sundowner Sport L4.1970cc Engine Components::Piston Rings