{"product_id":"dorman-419-474-accessory-drive-belt-idler-pulley-left-or-right","title":"Dorman 419-474 Accessory Drive Belt Idler Pulley - Left or Right","description":"\u003ch2\u003eDorman 419-474 Accessory Drive Belt Idler Pulley\u003c\/h2\u003e\u003cp\u003eDorman 419-474 is a direct replacement accessory drive belt idler pulley engineered to match the function and performance of the original pulley on select Ford Super Duty applications. It is built for specific left- and right-side fitments on Ford F-250 Super Duty, F-350 Super Duty, and E-350 Super Duty models.\u003c\/p\u003e\u003cp\u003eFor buyers searching for a Ford F-250 Super Duty idler pulley or a Ford F-350 Super Duty accessory drive belt pulley replacement, this OE-style part number 419-474 provides a specific-fit solution for restoring belt routing and drive system operation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement accessory drive belt idler pulley\u003c\/li\u003e\n\u003cli\u003eSpecific fit for select Ford Super Duty applications\u003c\/li\u003e\n\u003cli\u003ePlastic pulley construction with black finish\u003c\/li\u003e\n\u003cli\u003eV-belt pulley design with smooth backside surface\u003c\/li\u003e\n\u003cli\u003eFlanged pulley design on pulley 1\u003c\/li\u003e\n\u003cli\u003eOEM-grade replacement for original equipment-style service\u003c\/li\u003e\n\u003cli\u003ePart number 419-474 for easy identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman accessory drive belt idler pulley is engineered to restore proper belt guidance and support in the accessory drive system. It is listed for select 2016-2021 Ford F-250 Super Duty, 2016-2021 Ford F-350 Super Duty, and 2017-2018 Ford E-350 Super Duty applications, with left- or right-side fitment depending on the vehicle and model year. The pulley uses a smooth backside V-belt design and is built as a specific-fit replacement rather than a universal part.\u003c\/p\u003e\u003cp\u003eThis part cross-references Dynomax 36491 for the same application. If you are replacing a worn Ford Super Duty idler pulley, Dorman 419-474 is a practical OE-style option for maintaining correct belt path alignment and accessory drive operation.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBelt noise caused by a worn idler pulley surface\u003c\/li\u003e\n\u003cli\u003eImproper belt tracking in the accessory drive system\u003c\/li\u003e\n\u003cli\u003eVisible pulley wear or cracking on the original part\u003c\/li\u003e\n\u003cli\u003eAccessory drive belt vibration from a damaged pulley\u003c\/li\u003e\n\u003cli\u003eLoss of smooth belt routing on select Ford Super Duty models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify side-specific fitment before ordering: applications are listed for left and right positions depending on year and model.\u003c\/li\u003e\n\u003cli\u003eConfirm the vehicle build date on 2016 Ford F-250 Super Duty and F-350 Super Duty applications noted as from 5\/25\/15.\u003c\/li\u003e\n\u003cli\u003eInspect the belt, tensioner, and adjacent pulleys during service to avoid repeat noise or alignment issues.\u003c\/li\u003e\n\u003cli\u003eMatch the pulley style and dimensions to the original component before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman designs this replacement pulley to match the function and performance of the original equipment part on the listed Ford applications. Part number 419-474 is built as an OEM-grade replacement for specific vehicle fitment and accessory drive service.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52752742744245,"sku":"BKLB-419-474","price":32.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_419474_Fro.jpg?v=1782885892","url":"https:\/\/www.partcatalog.com\/products\/dorman-419-474-accessory-drive-belt-idler-pulley-left-or-right","provider":"PartCatalog","version":"1.0","type":"link"}