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 : mhl42047CP.004 Description : Engine Piston Ring Set Piston Ring Size : 0.004IN 2005 Ford Thunderbird 50th Anniversary Edition V8.-cc Engine Components::Piston Rings 2002-2005 Ford Thunderbird Base V8.-cc Engine Components::Piston Rings 2004 Ford Thunderbird Pacific Coast Roadster V8.-cc Engine Components::Piston Rings 2000-2004 Lincoln LS Base V8.-cc Engine Components::Piston Rings 2001-2003 Lincoln LS LSE V8.-cc Engine Components::Piston Rings 2005-2006 Lincoln LS Sport V8.-cc Engine Components::Piston Rings 2005 Lincoln LS Ultimate V8.-cc Engine Components::Piston Rings