Flex-A-Lite 1 Inch Fan Spacer Kit Required for Flex-A-Lite belt-driven fan installations, this aluminum spacer is designed to correctly position a belt-driven fan for optimal cooling Features a large load-bearing surface and is machined to a soft radius around the edge to prevent stress cracking on the radiator fan center star; Includes the bolts and washers needed to install the cooling fan and spacer Use up to three 1-inch automotive fan spacers to achieve the proper fan position and prevent damage to the fan Car parts spacer comes with a one-year manufacturer warranty and is the perfect companion to your engine