The Dorman Exhaust Manifold is specifically designed for 1965-1983 Ford Bronco F-150 L6 300 4.9L vehicles. It comes with a 1-year manufacturer warranty and is a direct replacement part with OE/OEM numbers E3TZ9426B, D1AZ9426A, E3TZ9426D, D5TZ9426A, 674-173, and 674173. This exhaust manifold is a reliable and high-quality component that ensures proper performance and durability for your vehicle.