{"product_id":"dayco-89124-accessory-drive-belt-idler-assembly-alternator-and-air-conditioning-upper-or-upper","title":"Dayco 89124 Accessory Drive Belt Idler Assembly - Alternator and Air Conditioning (Upper) or Upper","description":"\u003ch2\u003eAccessory Drive Belt Idler Assembly\u003c\/h2\u003e\u003cp\u003eDayco part number 89124 is an accessory drive belt idler assembly for heavy-duty commercial applications. It is listed across Freightliner, Western Star, Motor Coach Industries, Van Hool, Pierce Mfg. Inc., Kimble Chassis, and Sterling Truck fitments, with upper-position coverage on many applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAccessory drive belt idler assembly for belt routing and tension management.\u003c\/li\u003e\n\u003cli\u003eFits a wide range of heavy-duty trucks, coaches, and specialty chassis.\u003c\/li\u003e\n\u003cli\u003eUpper-position applications are listed across multiple makes and model lines.\u003c\/li\u003e\n\u003cli\u003eDayco part number 89124 for direct catalog identification.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Coverage\u003c\/h2\u003e\u003cp\u003eCompatible with 2008-2024 Freightliner Cascadia, upper; 2012-2024 Freightliner 114SD, upper; 2013-2022 Freightliner 122SD, upper; 2009-2021 Freightliner M2 112, upper; 2013-2021 Freightliner Sport Chassis, upper; 2013-2021 Western Star 4700SB, upper; 2013-2021 Western Star 4700SF, upper; 2012-2021 Western Star 4800SB, upper; 2013-2021 Western Star 4800SF, upper; 2010-2021 Western Star 4900EX, upper; 2010-2021 Western Star 4900FA, upper; 2009-2021 Western Star 4900SA, upper; 2016-2021 Western Star 5700XE, upper; 2019-2020 Motor Coach Industries J4500, upper; 2014-2020 Van Hool Commuter Coach CX, upper; 2014-2019 Van Hool Tourist Coach TX, upper; 2010-2016 Freightliner Coronado, upper; and additional listed applications including Pierce Mfg. Inc., Kimble Chassis, Sterling Truck, and Van Hool models. Dayco 89124 also appears on select N\/A and alternator and air conditioning upper applications where specified in the catalog data.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or noisy belt idler operation.\u003c\/li\u003e\n\u003cli\u003eImproper belt tracking in accessory drive systems.\u003c\/li\u003e\n\u003cli\u003eBelt vibration in heavy-duty engine accessory drives.\u003c\/li\u003e\n\u003cli\u003eService replacement for catalog-listed idler assembly applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the exact year, make, model, and position before ordering. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application. Match the catalog position notes carefully, especially where the listing shows upper, N\/A, or alternator and air conditioning upper applications. Confirm belt routing and pulley alignment during installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDayco is a recognized supplier in belt drive system components, and part number 89124 is cataloged for heavy-duty accessory drive service applications. Use the vehicle listing to confirm the correct fit for your specific configuration.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":53555950944437,"sku":"BCWL-89124","price":51.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_89124_Fro.jpg?v=1792388990","url":"https:\/\/www.partcatalog.com\/products\/dayco-89124-accessory-drive-belt-idler-assembly-alternator-and-air-conditioning-upper-or-upper","provider":"PartCatalog","version":"1.0","type":"link"}