{"product_id":"dorman-419-200-accessory-drive-belt-tensioner-assembly","title":"Dorman 419-200 Accessory Drive Belt Tensioner Assembly","description":"\u003ch2\u003eOverview of Dorman Accessory Drive Belt Tensioner Assembly 419-200\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-200 accessory drive belt tensioner assembly is engineered for reliable performance in Ford, Mazda, and Mercury vehicles. Designed specifically for models like the Ford Explorer, Mazda Navajo, and Mercury Mountaineer, this tensioner ensures proper serpentine belt tension and alignment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ford Aerostar, B4000, Explorer, Mountaineer, Mazda Navajo, and Ranger\u003c\/li\u003e\n\u003cli\u003eSerpentine belt type with 6 grooves for optimal belt grip\u003c\/li\u003e\n\u003cli\u003eSingle pulley design with a 40 mm diameter bearing\u003c\/li\u003e\n\u003cli\u003eDurable polyamide 6.6 pulley reinforced with 30% glass fiber\u003c\/li\u003e\n\u003cli\u003eClockwise (CW) tensioner rotation for precise belt tensioning\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 73 mm and inside diameter of 17 mm\u003c\/li\u003e\n\u003cli\u003eWidth options of 20 mm and 28 mm for versatile fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-200 accessory drive belt tensioner assembly is a critical component in the belt drive system of select Ford, Mazda, and Mercury vehicles. It features a single pulley with six grooves designed to accommodate serpentine belts, ensuring consistent belt tracking and tension. The pulley is constructed from polyamide 6.6 material reinforced with 30% glass fiber, providing enhanced strength and resistance to wear. The pulley bearing diameter measures 40 mm, supporting smooth rotation and reducing friction. This tensioner rotates clockwise (CW), matching the original equipment specifications for proper belt tensioning. With an outside diameter of 73 mm and inside diameter of 17 mm, along with width options of 20 mm and 28 mm, this assembly fits a range of accessory drive belt configurations found in models such as the Ford Ranger and Mazda Navajo.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaintains proper serpentine belt tension to prevent slippage\u003c\/li\u003e\n\u003cli\u003eReduces belt noise caused by misalignment or wear\u003c\/li\u003e\n\u003cli\u003ePrevents premature belt and pulley wear by ensuring correct tension\u003c\/li\u003e\n\u003cli\u003eAddresses issues related to belt squeal or chirping during engine operation\u003c\/li\u003e\n\u003cli\u003eHelps avoid accessory drive system failures due to loose or damaged tensioners\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the tensioner rotation direction matches the vehicle’s original setup (clockwise for this model)\u003c\/li\u003e\n\u003cli\u003eInspect the serpentine belt for wear or damage before installation\u003c\/li\u003e\n\u003cli\u003eUse proper tools to relieve tension on the belt during removal and installation\u003c\/li\u003e\n\u003cli\u003eVerify pulley alignment and belt seating after installation to avoid premature wear\u003c\/li\u003e\n\u003cli\u003eConsult vehicle-specific service manuals for torque specifications and installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the 419-200 accessory drive belt tensioner assembly to meet or exceed OEM standards for fit, form, and function. The use of reinforced polyamide materials and precision bearings ensures durability and reliable operation. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use conditions.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43610955612341,"sku":"BKLB-419-200","price":53.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_419200_Fro.jpg?v=1774983444","url":"https:\/\/www.partcatalog.com\/products\/dorman-419-200-accessory-drive-belt-tensioner-assembly","provider":"PartCatalog","version":"1.0","type":"link"}