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 : mhl42106CP.010 Description : Engine Piston Ring Set Piston Ring Size : 0.010IN 2005-2007 Cadillac CTS Base V6.2792cc Engine Components::Piston Rings