Keep the cooling system in your 2001-2004 Chevy/GMC 6.6L LB7 Duramax functioning properly with a high-quality replacement water pump. Shop water pumps from top name manufacturers such as Dayco, Alliant Power, Bullet Proof Diesel, Bostech, Diamond Advantage and many more! Ensure that your vehicle cooling system is functioning properly by replacing or servicing your water pump. Over time elements like corrosion, faulty pulleys, or leaking gaskets reduces the efficiency of your factory water pump. Shop today at XDP and find the water pump you need for your application.