Type Exhaust Manifold; Items Included Gasket, Mounting Hardware, Washer, Flange, Bolt, Flange Gasket; Material Cast Iron; Placement on Vehicle Right; MPN12624683; Color Natural; Interchange Part Number 674-736; Superseded Part Number 674736; Compatible Make For Chevrolet, GMC, Workhorse, Workhorse Custom Chassis; Model Express 2500, Express 3500, Express 4500, Silverado 2500 HD; Model-2 Silverado 2500 HD Classic, Silverado 3500, LF72; Model-3 Silverado 3500 Classic, Silverado 3500 HD, R26; Model-4 Savana 3500, Savana 4500, Sierra 2500 HD, P42; Model-5 Savana 2500,Sierra 2500 HD Classic, Sierra 3500; Year 2001-2016; Engine V8 6.6L;