{"product_id":"dorman-577-339-fuel-tank-filler-neck","title":"Dorman 577-339 Fuel Tank Filler Neck","description":"\u003ch2\u003eDorman 577-339 Fuel Tank Filler Neck\u003c\/h2\u003e\u003cp\u003eRestore a leaking fuel fill path with this Dorman fuel tank filler neck for select Chevrolet Silverado 2500 HD and 3500 HD, and GMC Sierra 2500 HD and 3500 HD applications. Built from steel and engineered to match the original filler neck design, Dorman 577-339 is made for a direct repair on the listed trucks.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSteel construction for fuel system durability\u003c\/li\u003e\n\u003cli\u003e73-inch length\u003c\/li\u003e\n\u003cli\u003e1-inch inside diameter fill pipe\u003c\/li\u003e\n\u003cli\u003eNo fuel cap included\u003c\/li\u003e\n\u003cli\u003eIncludes filler neck, hoses, and ground wire\u003c\/li\u003e\n\u003cli\u003eDirect replacement for select Silverado and Sierra heavy-duty models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis replacement fuel filler neck is precision-engineered and thoroughly tested to match the original part for specific vehicle years, makes, and models. It is designed for 2011-2016 Chevrolet Silverado 3500 HD SRW, 2011-2016 GMC Sierra 3500 HD SRW, 2011-2013 Chevrolet Silverado 2500 HD, and 2011-2013 GMC Sierra 2500 HD. If you are servicing a Chevrolet Silverado 2500 HD fuel filler neck or a GMC Sierra 3500 HD fuel tank filler neck, Dorman 577-339 provides the correct OE-style repair path.\u003c\/p\u003e\u003cp\u003eThis part cross-references GM 20942297 and FN875 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFuel leakage at the filler neck\u003c\/li\u003e\n\u003cli\u003eCorrosion or rust damage in the original steel neck\u003c\/li\u003e\n\u003cli\u003eCracked or deteriorated fill pipe sections\u003c\/li\u003e\n\u003cli\u003eFuel odor caused by a compromised filler assembly\u003c\/li\u003e\n\u003cli\u003eRefueling issues related to a damaged neck or hose connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify vehicle fitment by year, make, model, and SRW configuration before installation. Compare the original filler neck length, hose routing, and fill pipe diameter to confirm proper match. Transfer any required connections from the vehicle as needed and inspect surrounding hoses and grounding points during service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman tests this replacement filler neck to match the original design for the listed applications. It is built as a direct-fit repair part for select Chevrolet Silverado HD and GMC Sierra HD trucks, with OE-style dimensions and materials for a reliable service replacement.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":53005850771637,"sku":"BKKY-577-339","price":427.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_577339_Ang.jpg?v=1787380704","url":"https:\/\/www.partcatalog.com\/products\/dorman-577-339-fuel-tank-filler-neck","provider":"PartCatalog","version":"1.0","type":"link"}