CARDONE Engine Auxiliary Water Pumps are brand new units featuring upgraded components over the O.E. hardware. These units have upgraded resin impregnated bearings that improve longevity and reduce friction over O.E. A more effective rubber sealant is also used to further prevent potential leaks and to promote consistent flow. All units undergo rigorous testing under varied conditions to test real-world reliability. Mounting brackets and additional hardware are also included, where necessary. With a limited lifetime warranty, CARDONE Engine Auxiliary Water Pumps guarantee reliable performance for years to come.