Chevrolet GMC Isuzu And Workhorse 2003 Through 2007 Exhaust Manifold Kit

The Chevrolet, GMC, Isuzu, and Workhorse 2003 through 2007 Exhaust Manifold Kit is an ideal replacement for your vehicle's stock manifold. Made with durable cast iron construction, this kit includes all necessary gaskets and downpipe hardware for a complete repair. With its reliable construction, this manifold resists warping, cracking, and leaking, ensuring long-lasting performance. It features a round exhaust manifold inlet port shape and a regular grade type. Although it does not include a heat shield, this kit fits most Chevrolet, GMC, Isuzu, and Workhorse models from 2003 to 2007. Direct OE replacement numbers include General Motors: 12570670 and 12603739, and Isuzu: 8-12570-670-0 and 8-12603-739-0. Non-direct OE replacement number is General Motors 12603738.