Make sure the cooling system on your 2004.5-2005 Chevy/GMC 6.6L LLY Duramax continues functioning properly with Cooling Fans from XDP. To further enhance cooling capabilities, Flex-A-Lite designed direct-fit electric dual cooling fans for select applications. Damaged or failing cooling fans reduce cooling efficiency and they can also damage other underhood components when they break. Replace your faulty unit with OE-style replacement cooling fan clutches and fan blades that are manufactured to meet or exceed OEM specifications. Shop Cooling Fans from leading manufacturers including Dorman, Alliant Power and more!