{"product_id":"dayco-22665-accessory-drive-belt-fan-or-fan-and-idler","title":"Dayco 22665 Accessory Drive Belt - Fan or Fan and Idler","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eDayco 22665 is an accessory drive belt built for heavy-duty fan and idler applications. It uses a synthetic rubber compound and double-cog construction to handle demanding belt routing while maintaining consistent grip.\u003c\/p\u003e\u003cp\u003eCompatible With Ford L9000, LTL9000, CL9000, CLT9000, LT9000, and LTS9000 applications, plus Autocar, White\/GMC, and Western Star fitments listed below. The Dayco 22665 part number is also referenced across multiple OE and aftermarket cross numbers for the same application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSynthetic rubber compound for durable belt construction.\u003c\/li\u003e\n\u003cli\u003eDouble-cog design for flexible operation in routed drive systems.\u003c\/li\u003e\n\u003cli\u003eBlack finish with a .69-inch top width.\u003c\/li\u003e\n\u003cli\u003eBuilt to SAE J636 and SAE J637 standards.\u003c\/li\u003e\n\u003cli\u003eRated for temperatures from -35 to 175 degrees.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDayco 22665 is an accessory drive belt intended for fan and idler drive systems that require a 66.50-inch effective length and a 38-degree angle profile. Its double-cog construction improves flexibility around pulleys, while the synthetic rubber compound supports stable operation across a wide temperature range. This belt is a direct fit for multiple medium- and heavy-duty truck applications, including Ford L9000 and Ford LTS9000 configurations, as well as selected Autocar, White\/GMC, and Western Star models. The Dayco 22665 part number appears in interchange listings with ACDelco T22664 and Gates 15A1670 among others for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn accessory drive belt with visible cracking or glazing.\u003c\/li\u003e\n\u003cli\u003eRestoring proper fan drive operation when belt tension or grip is reduced.\u003c\/li\u003e\n\u003cli\u003eAddressing belt noise caused by wear, hardening, or pulley slip.\u003c\/li\u003e\n\u003cli\u003eSupporting correct drive routing in fan and idler belt systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify belt length, angle, and routing against the existing application before installation. Confirm the listed fan or fan-and-idler position for the vehicle, since fitment varies by model and configuration. Inspect pulleys and tensioning components for wear before installing the new belt.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eThis belt is manufactured to SAE J636 and SAE J637 standards for accessory drive belt applications.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":53556084048053,"sku":"BCWL-22665","price":43.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_22665_Fro.jpg?v=1792393326","url":"https:\/\/www.partcatalog.com\/products\/dayco-22665-accessory-drive-belt-fan-or-fan-and-idler","provider":"PartCatalog","version":"1.0","type":"link"}