Mahle 41909 020 Piston Ring Set | 01-10 GM 6.6L Duramax 2500HD / 3500HD

Replace the piston rings in your 2001-2010 GM 6.6L Duramax with the MAHLE 41909.020 Complete Piston Ring Set (.020). Made to factory specifications, the rings in the Complete Piston Ring Set come pre-lapped so they seat immediately and do not need to be broken in. The Complete Piston Ring Set ensures your Duramax maintains an OEM performance.