{"product_id":"dorman-419-016-accessory-drive-belt-tensioner-assembly","title":"Dorman 419-016 Accessory Drive Belt Tensioner Assembly","description":"\u003ch2\u003eOverview of Dorman Accessory Drive Belt Tensioner Assembly 419-016\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-016 accessory drive belt tensioner assembly is engineered for reliable performance in Jeep vehicles, specifically designed for the Jeep Grand Cherokee and Jeep Wrangler models. This serpentine belt tensioner ensures proper belt tension and smooth operation of the accessory drive system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Jeep Grand Cherokee and Jeep Wrangler\u003c\/li\u003e\n\u003cli\u003eSerpentine belt type tensioner assembly\u003c\/li\u003e\n\u003cli\u003eComposite pulley with a 40 mm bearing diameter\u003c\/li\u003e\n\u003cli\u003eSingle pulley design with clockwise rotation\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 87 mm and width approximately 26 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-016 tensioner assembly features a composite pulley constructed for durability and reduced weight. It includes one pulley with a 40 mm bearing diameter, designed to support smooth rotation and reduce wear. The tensioner has an outside diameter of 87 mm and a width close to 26 mm, fitting precisely within the accessory drive belt system. The inside diameter measures 17 mm, and the tensioner rotates clockwise (CW), matching the original equipment specifications for Jeep Grand Cherokee and Wrangler models. This assembly is designed for serpentine belt systems, which are common in modern Jeep vehicles.\u003c\/p\u003e\u003ch2\u003ePurpose and Common Applications\u003c\/h2\u003e\u003cp\u003eThis accessory drive belt tensioner assembly is used to maintain proper tension on the serpentine belt, which drives multiple engine accessories such as the alternator, power steering pump, and air conditioning compressor. It helps prevent belt slippage and premature wear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEliminates belt squealing caused by improper tension\u003c\/li\u003e\n\u003cli\u003ePrevents belt misalignment and uneven wear\u003c\/li\u003e\n\u003cli\u003eReduces risk of accessory drive system failure\u003c\/li\u003e\n\u003cli\u003eAddresses pulley bearing noise or failure\u003c\/li\u003e\n\u003cli\u003eRestores proper belt tension after component replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman 419-016 tensioner assembly on Jeep Grand Cherokee or Wrangler models, ensure the serpentine belt is properly routed according to the vehicle’s belt diagram. Use appropriate tools to relieve tension from the old belt tensioner before removal. Verify the tensioner rotates clockwise as specified and that the pulley spins freely without resistance. Double-check belt alignment after installation to avoid premature wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this accessory drive belt tensioner assembly to meet or exceed OEM standards for fit, form, and function. The composite pulley and bearing are engineered for durability under typical operating conditions. This part is backed by Dorman’s limited warranty, providing coverage against defects in materials and workmanship for a specified period, ensuring confidence in your replacement part.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43610951876789,"sku":"BKLB-419-016","price":69.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_419016_Fro.jpg?v=1774983432","url":"https:\/\/www.partcatalog.com\/products\/dorman-419-016-accessory-drive-belt-tensioner-assembly","provider":"PartCatalog","version":"1.0","type":"link"}