Dorman 674-536 Exhaust Manifold Kit Direct replacement, exact-fit kit replaces the vehicle's factory installed exhaust manifold Cast iron or stainless tubular construction protects against warping and/or cracking Leak-resistant for long-lasting performance A rigorous quality inspection has been undertaken to ensure that this part conforms to product standards Original Equipment (OE) number: 1R3Z9430BA, 1R3Z9430CA, XR3Z 9430-AC, XR3Z 9430-BA, XR3Z 9430-BC