{"product_id":"dayco-89702-accessory-drive-belt-tensioner-assembly","title":"Dayco 89702 Accessory Drive Belt Tensioner Assembly","description":"\u003ch2\u003eOverview of Dayco Accessory Drive Belt Tensioner Assembly 89702\u003c\/h2\u003e\u003cp\u003eThe Dayco Accessory Drive Belt Tensioner Assembly 89702 is designed for precise serpentine belt tension control in various BMW models. This automatic tensioner ensures consistent belt tension, contributing to the reliable operation of your vehicle's accessory drive system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSerpentine belt type compatible\u003c\/li\u003e\n\u003cli\u003eCounter clockwise rotation direction\u003c\/li\u003e\n\u003cli\u003eSingle pulley design with 70.5 mm diameter\u003c\/li\u003e\n\u003cli\u003ePulley width of 32.12 mm with flat surface\u003c\/li\u003e\n\u003cli\u003eAutomatic tensioner type for consistent belt tension\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dayco accessory drive belt tensioner assembly features a single pulley with a diameter of 70.5 mm and a width of 32.12 mm, designed with a flat surface to optimize belt contact and reduce slippage. The tensioner operates in a counter clockwise direction, matching the original equipment specifications for the compatible BMW models. As an automatic tensioner, it maintains proper serpentine belt tension without manual adjustment, helping to extend belt life and improve accessory drive performance.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cp\u003eThis tensioner assembly is compatible with a wide range of BMW vehicles, including the 335i, 335i GT xDrive, 435i, 435i Gran Coupe, 535i, 640i, 740i, M2, M3, M4, M235i, X3, X4, X5, and X6 models. It is specifically designed to meet the accessory drive system requirements of these vehicles, ensuring proper fitment and function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by Part Number 89702\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates belt slippage caused by worn or loose tensioners\u003c\/li\u003e\n\u003cli\u003ePrevents premature serpentine belt wear and noise\u003c\/li\u003e\n\u003cli\u003eRestores proper accessory drive belt tension for optimal performance\u003c\/li\u003e\n\u003cli\u003eReduces risk of accessory component failure due to improper belt tension\u003c\/li\u003e\n\u003cli\u003eImproves overall engine accessory system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dayco 89702 tensioner assembly, ensure the serpentine belt is properly routed according to the vehicle’s service manual. Verify the tensioner rotates counter clockwise and that the pulley aligns correctly with the belt path. It is recommended to inspect the serpentine belt for wear and replace it if necessary during installation. Proper torque specifications should be followed to secure the tensioner assembly.\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 standards for durability and performance. While specific warranty details are not provided here, Dayco products typically come with a limited warranty covering defects in materials and workmanship. Using part number 89702 ensures compatibility and reliability for your BMW accessory drive system.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":51847589134517,"sku":"BCWL-89702","price":120.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_89702_Fro.jpg?v=1774728958","url":"https:\/\/www.partcatalog.com\/products\/dayco-89702-accessory-drive-belt-tensioner-assembly","provider":"PartCatalog","version":"1.0","type":"link"}