A leaking coolant hose can lead to serious engine damage if not quickly identified.Upgrade your cooling system with the Mishimoto 6.6L Duramax silicone coolant hose kit for the perfect combination of performance and durability.Mishimoto coolant hoses are manufactured with high-grade silicone and four layers of heat-resistant embedded fibers to provide increased pressure and temperature tolerance.The Mishimoto coolant hose kit is ideal for use on both stock and modified trucks for any environment or terrain.The Mishimoto 6.6L Duramax silicone coolant hose kit includes our signature lifetime warranty and is offered in black, blue, and red. Silicone Coolant Hose Kit, fits Chevrolet/GMC 6.6L Duramax 2006-2010 2006-2010 Chevrolet Silverado 2500 HD 6.6 Liter 1000, 2006-2007 Chevrolet Silverado 2500 HD 6.6 Liter 4L80-E, 2007-2010 Chevrolet Silverado 2500 HD 6.6 Liter 6L90, 2006-2007 Chevrolet Silverado 2500 HD 6.6 Liter NV4500, 2006 Chevrolet Silverado 2500 HD 6.6 Liter S6-650, 2006-2007 Chevrolet Silverado 3500 6.6 Liter 1000, 2006-2007 Chevrolet Silverado 3500 6.6 Liter 4L80-E, 2006-2007 Chevrolet Silverado 3500 6.6 Liter NV4500, 2006 Chevrolet Silverado 3500 6.6 Liter S6-650, 2007-2010 Chevrolet Silverado 3500 HD 6.6 Liter 1000, 2007-2010 Chevrolet Silverado 3500 HD 6.6 Liter 6L90, 2006-2010 GMC Sierra 2500 HD 6.6 Liter 1000, 2006-2007 GMC Sierra 2500 HD 6.6 Liter 4L80-E, 2007-2010 GMC Sierra 2500 HD 6.6 Liter 6L90, 2006-2007 GMC Sierra 2500 HD 6.6 Liter NV4500, 2006 GMC Sierra 2500 HD 6.6 Liter S6-650, 2006-2007 GMC Sierra 3500 6.6 Liter 1000, 2006-2007 GMC Sierra 3500 6.6 Liter 4L80-E, 2006-2007 GMC Sierra 3500 6.6 Liter NV4500, 2006 GMC Sierra 3500 6.6 Liter S6-650, 2007-2010 GMC Sierra 3500 HD 6.6 Liter 1000, 2007-2010 GMC Sierra 3500 HD 6.6 Liter 6L90