{"product_id":"dorman-419-386-accessory-drive-belt-tensioner-assembly","title":"Dorman 419-386 Accessory Drive Belt Tensioner Assembly","description":"\u003ch2\u003eReliable Accessory Drive Belt Tensioner for Audi and Volkswagen\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-386 accessory drive belt tensioner assembly is engineered to maintain optimal serpentine belt tension for select Audi and Volkswagen models. Designed with durable aluminum and steel components, this tensioner ensures consistent performance and longevity in your vehicle's accessory drive system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from lightweight aluminum with a steel pulley for durability\u003c\/li\u003e\n\u003cli\u003eCompatible with serpentine belt systems on Audi A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, Cabriolet, Passat, RS4, and S4 models\u003c\/li\u003e\n\u003cli\u003eFeatures a single pulley with a 40 mm bearing diameter for smooth operation\u003c\/li\u003e\n\u003cli\u003eMaximum adjustment range of 45 mm to accommodate belt tension variations\u003c\/li\u003e\n\u003cli\u003eClockwise rotation tensioner designed for precise belt alignment\u003c\/li\u003e\n\u003cli\u003eIncludes one mounting hole with a 13 mm diameter for secure installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-386 accessory drive belt tensioner assembly is crafted from aluminum, providing a balance of strength and weight savings. The tensioner features a black and silver finish, complementing the engine bay aesthetics while resisting corrosion. Its pulley is made of steel and contains a single bearing with a 40 mm diameter, ensuring smooth and reliable belt movement. The tensioner measures 155 mm in length, with an outside diameter of 76 mm and an inside diameter of 17 mm, designed specifically for serpentine belt systems. This assembly includes one mounting hole with a 13 mm diameter, facilitating straightforward installation on compatible Audi and Volkswagen vehicles.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis accessory drive belt tensioner assembly is compatible with a range of Audi and Volkswagen models, including the Audi A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, Cabriolet, RS4, S4, and the Volkswagen Passat. It is designed to maintain proper tension on serpentine belts, which drive essential engine accessories such as the alternator, power steering pump, and air conditioning compressor.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Tensioner\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 damage\u003c\/li\u003e\n\u003cli\u003eReduces noise from squealing or chirping belts\u003c\/li\u003e\n\u003cli\u003eMaintains consistent accessory drive performance\u003c\/li\u003e\n\u003cli\u003eHelps avoid engine overheating due to accessory failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman 419-386 tensioner, ensure the serpentine belt is properly routed according to the vehicle’s service manual. Use appropriate tools to relieve tension from the old belt tensioner before removal. Verify the mounting hole alignment and torque specifications to secure the new tensioner assembly. The clockwise rotation design requires attention to correct orientation during installation to maintain proper belt tension and alignment.\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 specifications, using high-quality materials such as aluminum and steel for durability. The product undergoes rigorous testing to ensure reliable performance in demanding automotive environments. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship for this part number 419-386.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43610969047221,"sku":"BKLB-419-386","price":80.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_419386_Fro_57f677f7-e83f-42bb-957f-b18eb0fcff09.jpg?v=1774983456","url":"https:\/\/www.partcatalog.com\/products\/dorman-419-386-accessory-drive-belt-tensioner-assembly","provider":"PartCatalog","version":"1.0","type":"link"}