8pcs connecting rod set compatible with GL500 (2008–2012, X164), S550 (2007–2012, R230), E500/E550 (2007–2013, W211/W212), CLS500/CLS550 (2007–2011, C219), CLK500/CLK550 (2007–2009, A209/C209), SL500/SL550 (2007–2012, R230), GL450 (2006–2012, X164), ML500/ML550 (2008–2011, W164), G500/G550 (2009–2015, W463), and vehicles equipped with M273 5.5L V8 engines.Includes 8 connecting rods.Designed to replace connecting rods for restoration of factory-specified engine.Fits models with engine code M273. This product is not affiliated with the manufacturer.Brand mentions are used for compatibility indication.