【Vehicle Fitment-1】Compatible with Cadillac Escalade/Escalade ESV/Escalade EXT 2006-2007; Compatible with GMC Sierra 1500/Sierra 2500 HD 2003-2007, Sierra 1500 Classic/Sierra 1500 HD Classic/Sierra 2500 HD Classic 2007-2007, Sierra 1500 HD 2003 2005-2006, Sierra 2500/Sierra 3500 2003-2004,Yukon/Yukon XL 1500/Yukon XL 2500 2003-2006---with Auto 4WD, with RPO Code NP8
【Vehicle Fitment-2】Compatible with Chevrolet Avalanche 1500/Avalanche 2500/Suburban 1500 /Suburban 2500/Tahoe 2003-2006, Silverado 1500/Silverado 2500 HD 2003-2007, Silverado 1500 Classic/Silverado 1500 HD Classic/Chevrolet Silverado 2500 HD Classic 2007-2007, Chevrolet Silverado 1500 HD 2003 2005-2006, Silverado 2500/Silverado 3500 2003-2004---with Auto 4WD, with RPO Code NP8
【Durable Construction】Manufactured and tested to the strictest standards for superior performance. Utilizes the latest advanced design and premium material technology for a long service life.
【Function】Pressurize the coolant to ensure its circulation in the cooling system. The water circulates continuously to take away heat, allowing the engine to run safely.