{"product_id":"dayco-89257-accessory-drive-belt-tensioner-assembly","title":"Dayco 89257 Accessory Drive Belt Tensioner Assembly","description":"\u003ch2\u003eOverview of Dayco Accessory Drive Belt Tensioner Assembly 89257\u003c\/h2\u003e\u003cp\u003eThe Dayco 89257 accessory drive belt tensioner assembly is designed for reliable serpentine belt tensioning in select Ford vehicles. Engineered for clockwise rotation and featuring dual pulleys, this automatic tensioner supports optimal belt performance in Ford E-350 and Super Duty models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSerpentine belt type compatible\u003c\/li\u003e\n\u003cli\u003eAutomatic tensioner with clockwise direction\u003c\/li\u003e\n\u003cli\u003eTwo pulleys: Pulley 1 (76mm diameter, 38.1mm width, 8 grooves), Pulley 2 (76mm diameter, 37mm width, flat)\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford E-350 Club Wagon, Econoline, Super Duty, Excursion, F-250 and F-350 Super Duty\u003c\/li\u003e\n\u003cli\u003ePart number 89257 for precise fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dayco accessory drive belt tensioner assembly (part number 89257) features an automatic tensioning mechanism designed to maintain proper serpentine belt tension. The assembly includes two pulleys of equal diameter (76mm), with Pulley 1 having 8 grooves and a width of 38.1mm, while Pulley 2 is flat with a width of 37mm. The tensioner operates in a clockwise direction, ensuring consistent belt alignment and reducing wear. These specifications make it suitable for heavy-duty applications in Ford E-350 Club Wagon, Econoline, Super Duty variants, Excursion, and F-250\/F-350 Super Duty trucks.\u003c\/p\u003e\u003ch2\u003eCompatible Ford Models and Applications\u003c\/h2\u003e\u003cp\u003eThis tensioner assembly is compatible with the following Ford vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFord E-350 Club Wagon\u003c\/li\u003e\n\u003cli\u003eFord E-350 Econoline and Econoline Club Wagon\u003c\/li\u003e\n\u003cli\u003eFord E-350 Super Duty\u003c\/li\u003e\n\u003cli\u003eFord Excursion\u003c\/li\u003e\n\u003cli\u003eFord F-250 Super Duty\u003c\/li\u003e\n\u003cli\u003eFord F-350 Super Duty\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUsing the correct tensioner assembly like Dayco 89257 ensures proper serpentine belt operation and accessory drive system reliability in these models.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Tensioner Assembly\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates belt slippage caused by improper tension\u003c\/li\u003e\n\u003cli\u003ePrevents premature belt wear and damage\u003c\/li\u003e\n\u003cli\u003eReduces noise from loose or misaligned belts\u003c\/li\u003e\n\u003cli\u003eMaintains consistent accessory drive performance\u003c\/li\u003e\n\u003cli\u003eHelps avoid engine overheating due to belt failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dayco 89257 tensioner assembly, ensure the serpentine belt is routed correctly according to the vehicle’s belt diagram. The automatic tensioner should rotate clockwise to apply proper tension. Inspect pulleys for wear and alignment before installation. Use appropriate tools to avoid damaging the tensioner or belt. It is recommended to replace the belt simultaneously to ensure optimal system performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures this accessory drive belt tensioner assembly to meet or exceed OEM specifications for durability and performance. The part number 89257 undergoes rigorous quality control to ensure reliable operation in demanding Ford E-350 and Super Duty applications. Warranty coverage details are provided by Dayco and typically include protection against defects in materials and workmanship under normal use.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391593808053,"sku":"BCWL-89257","price":84.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_89257_Fro.jpg?v=1774728880","url":"https:\/\/www.partcatalog.com\/products\/dayco-89257-accessory-drive-belt-tensioner-assembly","provider":"PartCatalog","version":"1.0","type":"link"}