This NAPA Echlin RR183 distributor cap is a perfect fit for AMC Jeep Studebaker Chevrolet 6cyl engines. It is made of high-quality materials such as low resistance brass, brass, low resistance terminals, and phenolic. The cap has a glossy finish and is designed to fit with screw-on mounting style. This vintage distributor cap is a great addition to any car or truck part collection. It is compatible with various interchange part numbers such as 4211, 2-4211HP, DR998G, 2-4211, and DR998. The OE/OEM part numbers for this cap are 3204197, 800057, 12338669, J3206903, 3206903, and J3206903 12338669 800057. This cap is made in Mexico and comes with no manufacturer warranty.