Compatibility: 2000-2006 Mercedes-Benz CL500 2001-2002 Mercedes-Benz CL55 AMG 2006 Mercedes-Benz S350 2000-2006 Mercedes-Benz S430 2000-2006 Mercedes-Benz S500 2001-2006 Mercedes-Benz S55 AMG 2001-2004 Mercedes-Benz S600 2003-2006 Mercedes-Benz SL500 2003-2007 Mercedes-Benz SL55 AMG 2004-2006 Mercedes-Benz SL600 Features: -OE design to ensure exact fit, form and function for an easy drop-in installation; -Built with high density multi-lowered fins for maximum cooling efficiency; -ISO 9001 certified manufacturing plants; -Direct Replacement; -Improve Cooling Efficiency; -100% Leak Tested; -Plastic tanks with aluminum core; .