{"product_id":"dorman-577-402-fuel-tank-filler-neck","title":"Dorman 577-402 Fuel Tank Filler Neck","description":"\u003ch2\u003eFuel Filler Neck for Silverado and Sierra\u003c\/h2\u003e\u003cp\u003eDorman 577-402 is a replacement fuel tank filler neck for select 2017-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It is precision-engineered and tested to match the original filler neck design for a reliable repair when the factory neck is leaking or damaged.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement fuel filler neck for gas applications\u003c\/li\u003e\n\u003cli\u003eSteel and rubber construction\u003c\/li\u003e\n\u003cli\u003eBlack and silver finish\u003c\/li\u003e\n\u003cli\u003eFuel hose included\u003c\/li\u003e\n\u003cli\u003eClamps included\u003c\/li\u003e\n\u003cli\u003eVent line attached with metal-and-hose combination\u003c\/li\u003e\n\u003cli\u003eNo fuel cap included\u003c\/li\u003e\n\u003cli\u003eNo mounting hardware included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOE-Style Replacement Design\u003c\/h2\u003e\u003cp\u003eThis Dorman fuel filler neck is built to restore the fuel fill path on 2017-2018 Chevrolet Silverado 1500 and 2017-2018 GMC Sierra 1500 trucks. The 33-inch fill pipe uses a 28 mm outside diameter and an 8 mm vent line inside diameter, with a single vent line attached for a direct-fit repair. Part number 577-402 is engineered to match the original filler neck configuration for the listed vehicles, helping maintain proper fuel transfer and venting.\u003c\/p\u003e\u003cp\u003eThis part cross-references OEM numbers 84766924 and 84766925 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Addresses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFuel smell near the filler area\u003c\/li\u003e\n\u003cli\u003eVisible corrosion or damage on the filler neck\u003c\/li\u003e\n\u003cli\u003eFuel leakage during refueling\u003c\/li\u003e\n\u003cli\u003eRestricted fuel filling caused by a deteriorated neck or hose\u003c\/li\u003e\n\u003cli\u003eVent line issues affecting tank venting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify vehicle fitment before installation on your Silverado 1500 or Sierra 1500. Transfer the fuel cap separately, since no cap is included. Inspect the filler hose, clamps, and vent connection points during service, and replace worn sealing components as needed to complete the repair. Part number 577-402 is intended for gas fuel systems only.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman tests this replacement fuel filler neck against the original design for the specified vehicle years, makes, and models to support a dependable repair. The part is built from steel and rubber to match the OE-style construction used on the listed applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":53005851001013,"sku":"BKKY-577-402","price":193.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_577402_Ang.jpg?v=1787380754","url":"https:\/\/www.partcatalog.com\/products\/dorman-577-402-fuel-tank-filler-neck","provider":"PartCatalog","version":"1.0","type":"link"}