{"product_id":"dorman-419-358-accessory-drive-belt-tensioner-assembly","title":"Dorman 419-358 Accessory Drive Belt Tensioner Assembly","description":"\u003ch2\u003eReliable Accessory Drive Belt Tensioner for Chevrolet and GMC\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-358 Accessory Drive Belt Tensioner Assembly is engineered to maintain optimal belt tension in heavy-duty vehicles. Designed for select Chevrolet, GMC, and Hummer models, this tensioner ensures consistent performance and durability under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed with aluminum and plastic components for strength and lightweight durability\u003c\/li\u003e\n\u003cli\u003eHexagonal bolt head type for secure and easy installation\u003c\/li\u003e\n\u003cli\u003eFlanged pulley design with 6 grooves to accommodate multi-rib belts\u003c\/li\u003e\n\u003cli\u003eCompatible with clockwise and counter-clockwise rotation systems\u003c\/li\u003e\n\u003cli\u003eMetallic gray and black finish for corrosion resistance and long service life\u003c\/li\u003e\n\u003cli\u003eInside diameter of 10.2 mm and length of 5 units for precise fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDurable Materials and Design Features\u003c\/h2\u003e\u003cp\u003eThis accessory drive belt tensioner assembly combines aluminum and plastic materials to balance strength and weight. The aluminum body provides rigidity and heat resistance, while the plastic components reduce overall weight and noise. The hexagonal bolt head type allows for straightforward installation using standard tools. The pulley is flanged and features six grooves, designed to securely guide the accessory drive belt and prevent slippage. Its metallic gray and black color finish offers additional protection against wear and corrosion, extending the component's lifespan.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe Dorman 419-358 tensioner assembly is compatible with a range of Chevrolet, GMC, and Hummer heavy-duty models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Express 2500 and 3500\u003c\/li\u003e\n\u003cli\u003eGMC Savana 2500 and 3500\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD\u003c\/li\u003e\n\u003cli\u003eHummer H1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Tensioner\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAccessory belt slippage causing noise or reduced accessory performance\u003c\/li\u003e\n\u003cli\u003eLoss of proper belt tension leading to premature belt wear\u003c\/li\u003e\n\u003cli\u003eVibration or misalignment in the accessory drive system\u003c\/li\u003e\n\u003cli\u003eFailure of original tensioner components due to wear or corrosion\u003c\/li\u003e\n\u003cli\u003eInconsistent belt tension affecting alternator, power steering, or AC operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman 419-358 tensioner assembly, ensure the correct orientation for clockwise or counter-clockwise rotation based on your vehicle’s configuration. Use a hex socket or wrench to tighten the hexagonal bolt securely without over-torquing. Verify that the flanged pulley aligns properly with the accessory drive belt grooves to prevent premature belt wear. It is recommended to inspect the belt condition and replace it if necessary during installation.\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 for fit, form, and function. The combination of aluminum and plastic materials is selected for durability and resistance to environmental factors. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52123109163189,"sku":"BKLB-419-358","price":80.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_419358_Fro.jpg?v=1775162847","url":"https:\/\/www.partcatalog.com\/products\/dorman-419-358-accessory-drive-belt-tensioner-assembly","provider":"PartCatalog","version":"1.0","type":"link"}