Mahle OE GM 4.8L / 5.3L 05-09 Fits LMG LC9 LY5 & LMF Piston Set (Set of 8)MAHLE Original pistons are OE quality and have the same great OE features such as compensated ring grooves to assure proper ring loading and oil control, as well as expansion controlled designs for small fitting clearances to reduce engine noise, wear, emissions, and improve oil control. This Part Fits: Year Make Model Submodel 2008 2009 Buick LaCrosse Super 2005 2007 Buick Rainier CXL 2005 Buick Rainier CXL Plus 2007 2009 Chevrolet Avalanche LS 2007