{"product_id":"cummins-3976831-genuine-drive-belt-tensioner-heavy-duty-engine-part","title":"Cummins 3976831 Genuine Drive Belt Tensioner Heavy Duty Engine Part","description":"Maintain proper accessory drive belt tension and prevent premature slippage or wear with this Genuine Cummins Belt Tensioner (Part Number: 3976831). Engineered to exact OEM specifications, this heavy-duty assembly delivers consistent tension and reliable damping under the high-stress operating environments of commercial diesel engines.\u003cbr\u003e\u003cbr\u003eKey Features:\u003cbr\u003e\u003cbr\u003eOEM Quality \u0026amp; Precision Fit: Manufactured by Cummins to ensure correct alignment, smooth operation, and long-term durability.\u003cbr\u003e\u003cbr\u003eOptimal Tension Control: Built-in internal spring mechanism maintains ideal belt tension, reducing wear on alternators, water pumps, and other belt-driven accessories.\u003cbr\u003e\u003cbr\u003eHeavy-Duty Construction: High-strength metal housing and durable pulley engineered to withstand intense engine vibration and continuous daily use.\u003cbr\u003e\u003cbr\u003eApplication Compatibility: Designed for specific heavy-duty Cummins diesel engine platforms requiring part number 3976831.\u003cbr\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003cbr\u003eBrand: Cummins Genuine Parts\u003cbr\u003e\u003cbr\u003ePart Number: 3976831\u003cbr\u003e\u003cbr\u003ePart Type: Drive Belt Tensioner Assembly\u003cbr\u003e\u003cbr\u003eQuantity: 1 Unit\u003cbr\u003e\u003cbr\u003eCondition: Brand New\u003cbr\u003e\u003cbr\u003ePackage Includes:\u003cbr\u003e\u003cbr\u003e1 x Cummins Drive Belt Tensioner (Part # 3976831)\u003cbr\u003e\u003cbr\u003eLet me know if you need any other items prepared!","brand":"Cummins","offers":[{"title":"Default Title","offer_id":69587512852514,"sku":"TRU0929","price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/6046\/9794\/files\/d52cae21-22e7-504f-bdf6-301b88b509e4.webp?v=1793672686","url":"https:\/\/moltoparts.com\/products\/cummins-3976831-genuine-drive-belt-tensioner-heavy-duty-engine-part","provider":"Moltoparts Truck Parts  Miami","version":"1.0","type":"link"}