Type Exhaust Manifold; Items Included Gasket, Mounting Hardware, Nut, Bolt; Material Cast Iron; Placement on Vehicle Right, (Passenger Side); MPN12557286,12580303,12601751; Color Natural; Interchange Part Number 674-728; Superseded Part Number 674728; Compatible Make Dodge; Model Avalanche 2500, Silverado 2500 HD, Silverado 2500 HD Classic; Model-2 Silverado 3500, Silverado 3500 Classic, Suburban 2500; Model-3 Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500; Model-4 Yukon XL 2500 , Sierra 3500 Classic; Year 2001-2007; Engine V8 8.1L;