The Dorman 674-987 Exhaust Manifold is designed to fit Ford F150, F250 and F350 vehicles with the interchange part number BC3Z9431DA. This left side exhaust manifold is a quality replacement part manufactured by Dorman, a trusted brand in the automotive industry. It is a crucial component of the exhaust system, helping to direct exhaust gases away from the engine to improve performance and reduce emissions. This exhaust manifold is a reliable option to consider for replacing a damaged or worn-out part on your Ford truck. Brand new and in the box.