{"product_id":"dorman-674-523-exhaust-manifold","title":"Dorman 674-523 Exhaust Manifold - Left","description":"\u003ch2\u003eExhaust Manifold for GM 4.8L\/5.3L Applications\u003c\/h2\u003e\u003cp\u003eThis Dorman exhaust manifold is engineered to match the original fit and function on specified Chevrolet and GMC vehicles. Built from cast iron with a natural finish, it includes the gaskets, heat shield, and downpipe hardware needed for a complete left-side exhaust repair.\u003c\/p\u003e\u003cp\u003eCompatible with Chevrolet Silverado 1500, Chevrolet Express 1500, GMC Sierra 1500, and GMC Savana 1500 applications, this Dorman 674-523 is a direct replacement for the factory manifold on the listed vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCast iron construction for durable exhaust service\u003c\/li\u003e\n\u003cli\u003eNatural finish with square port shape\u003c\/li\u003e\n\u003cli\u003eIncludes heat shield, gaskets, and mounting hardware\u003c\/li\u003e\n\u003cli\u003eDesigned to match original fit and function\u003c\/li\u003e\n\u003cli\u003eLeft-side exhaust manifold for listed GM trucks and vans\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2003-2014 Chevrolet Express 1500, left.\u003c\/li\u003e\n\u003cli\u003eFits 2003-2014 GMC Savana 1500, left.\u003c\/li\u003e\n\u003cli\u003eFits 2002-2013 Chevrolet Silverado 1500, left.\u003c\/li\u003e\n\u003cli\u003eFits 2002-2013 GMC Sierra 1500, left.\u003c\/li\u003e\n\u003cli\u003eFits 2007 Chevrolet Silverado 1500 Classic, left.\u003c\/li\u003e\n\u003cli\u003eFits 2007 GMC Sierra 1500 Classic, left.\u003c\/li\u003e\n\u003cli\u003eFits 2003-2005 Chevrolet Express 2500, left.\u003c\/li\u003e\n\u003cli\u003eFits 2003-2005 GMC Savana 2500, left.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat This Part Helps Repair\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExhaust leaks at the manifold flange or gasket surface\u003c\/li\u003e\n\u003cli\u003eCracked or warped original manifold housing\u003c\/li\u003e\n\u003cli\u003eBroken or corroded manifold studs and nuts\u003c\/li\u003e\n\u003cli\u003eHeat-related noise from a failing left exhaust manifold\u003c\/li\u003e\n\u003cli\u003eDownpipe connection issues on the listed GM applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify engine configuration and left-side placement before installation. Inspect the cylinder head and exhaust flange surfaces for damage, and replace any worn fasteners or sealing surfaces as needed. This part number 674-523 includes the manifold gaskets, flange gasket, studs, nuts, and heat shield specified for the repair.\u003c\/p\u003e\u003cp\u003eThis part cross-references ATP 101552 for the same application.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures this exhaust manifold to match the fit and function of the original equipment part on the listed Chevrolet and GMC vehicles. Part number 674-523 is built for regular-duty replacement service and is supported by Dorman’s OE-style engineering approach.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44045656096949,"sku":"BKKY-674-523","price":200.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_674523_Fro.jpg?v=1775010099","url":"https:\/\/www.partcatalog.com\/products\/dorman-674-523-exhaust-manifold","provider":"PartCatalog","version":"1.0","type":"link"}