{"product_id":"dayco-automatic-belt-tensioner-assembly-89499","title":"Dayco Automatic Belt Tensioner Assembly (MPN: 89499)","description":"\u003ch2\u003eEngineered for optimal performance and durability in Mack vehicles.\u003c\/h2\u003e\r\n\u003cp\u003eThe Dayco Automatic Belt Tensioner Assembly is designed to maintain consistent tension on serpentine belt drives, which power various engine accessories. This assembly features an original flat spring design that minimizes operating range variations in tension, thereby reducing the risk of premature accessory bearing failure. The innovative design also addresses common issues such as belt noise and slippage, ensuring reliable accessory performance as the belt wears over time.\u003c\/p\u003e\r\n\u003cp\u003eConstructed with a heavy-duty cast aluminum spring case, this tensioner resists cracking and fatigue, providing long-lasting durability. The assembly includes a steel locator pin and a steel pivot tube where necessary, enhancing strength for critical torque requirements. Additionally, the lubricated nylon pivot tube bushing and spring bushing contribute to quieter operation, while the thermoplastic rubber spring slot plug protects against harmful contaminants.\u003c\/p\u003e\r\n\u003cp\u003eThe Dayco Automatic Belt Tensioner is compatible with Mack GU7, GU8, and CHU vehicles from 2008 to 2013, making it a reliable OE replacement option. With features such as a rubber O-ring for dust and grime sealing and a zinc-coated mounting bolt to resist rust, this tensioner is engineered for optimal performance in demanding conditions.\u003c\/p\u003e\r\n\u003ch3\u003eFeatures\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eAccessory Drive Belt Tensioner Assembly\u003c\/li\u003e\r\n    \u003cli\u003eSteel Locator Pin (Where The Application Demands)\u003c\/li\u003e\r\n    \u003cli\u003eHeavy Duty Cast Aluminum Spring Case That Resists Cracking And Fatigue\u003c\/li\u003e\r\n    \u003cli\u003eHeavy Duty Cast Aluminum Arm Offers Additional Strength And Less Distortion\u003c\/li\u003e\r\n    \u003cli\u003eSteel Pivot Tube (Where The Application Demands) Provides Additional Strength For Critical Torque Requirements\u003c\/li\u003e\r\n    \u003cli\u003eThermoplastic Rubber Spring Slot Plug Helps Keep Out Harmful Contaminants\u003c\/li\u003e\r\n    \u003cli\u003eLubricated Nylon Pivot Tube Bushing And Spring Bushing For Quieter Performance\u003c\/li\u003e\r\n    \u003cli\u003eRubber “O” Ring Which Seals Against Dust And Grime\u003c\/li\u003e\r\n    \u003cli\u003eZinc-Coated Mounting Bolt That Resists Rust\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eManufacturer: Dayco Products Inc\u003c\/li\u003e\r\n    \u003cli\u003eManufacturer Part Number: 89499\u003c\/li\u003e\r\n    \u003cli\u003eBelt Type: Serpentine\u003c\/li\u003e\r\n    \u003cli\u003eMaximum Belt Width: OEM\u003c\/li\u003e\r\n    \u003cli\u003eNumber Of Pulleys: 1\u003c\/li\u003e\r\n    \u003cli\u003ePulley Groove Count: OEM\u003c\/li\u003e\r\n    \u003cli\u003ePulley Diameter: 74 Millimeter\u003c\/li\u003e\r\n    \u003cli\u003ePulley Width: 38.3 Millimeter\u003c\/li\u003e\r\n    \u003cli\u003ePulley Material: OEM\u003c\/li\u003e\r\n    \u003cli\u003eTensioner Rotation: Anti-Clockwise\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n","brand":"NTP-Stag","offers":[{"title":"Default Title","offer_id":47066584875247,"sku":"D3589499","price":151.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1583\/3619\/files\/89499FRO.jpg?v=1767376465","url":"https:\/\/www.sprinterpartsdepot.com\/products\/dayco-automatic-belt-tensioner-assembly-89499","provider":"Sprinter Parts Depot","version":"1.0","type":"link"}