Dorman 674-173 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: D1AZ 9426-A, D5TZ 9426-A, E3TZ 9426-B, E3TZ 9426-D