{"product_id":"dayco-pb1648n-engine-harmonic-balancer","title":"Dayco PB1648N Engine Harmonic Balancer","description":"\u003ch2\u003eOverview of Dayco Premium OEM Replacement Balancer PB1648N\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer PB1648N is engineered for reliable performance in heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500, this engine harmonic balancer ensures precise crankshaft operation and vibration dampening.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCounterweight balance: Hub weighted for optimal stability\u003c\/li\u003e\n\u003cli\u003eCrank bore diameter: 1.930 inches (49.01 mm)\u003c\/li\u003e\n\u003cli\u003eSingle integrated serpentine pulley with 6 grooves\u003c\/li\u003e\n\u003cli\u003eOuter ring constructed from durable cast iron\u003c\/li\u003e\n\u003cli\u003eOverall outside diameter: 7.796 inches (198 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width and ring width: 2.455 inches (62.35 mm)\u003c\/li\u003e\n\u003cli\u003eIncludes timing marks for accurate engine timing\u003c\/li\u003e\n\u003cli\u003eWoodruff key not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco PB1648N engine harmonic balancer is a critical component designed to reduce torsional vibration in the crankshaft of heavy-duty Chevrolet and GMC trucks. Featuring a hub-weighted counterbalance, it provides enhanced stability and smooth engine operation. The balancer includes a single serpentine pulley with six grooves, compatible with the accessory drive system of the specified truck models. Its cast iron outer ring offers durability and resistance to wear, while the precise crank bore diameter of 1.930 inches (49.01 mm) ensures a secure fit on the crankshaft.\u003c\/p\u003e\u003cp\u003eThis balancer also features timing marks, which assist in maintaining proper engine timing during maintenance or repairs. The overall dimensions—7.796 inches in diameter and 2.455 inches in width—match OEM specifications for a direct replacement. Note that this part does not include a Woodruff key or installation instructions.\u003c\/p\u003e\u003ch2\u003eAbout the Premium OEM Replacement Balancer Line\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer line is designed to meet or exceed original equipment manufacturer standards. This product line focuses on delivering precise fitment and reliable performance for heavy-duty applications. The PB1648N is part of this line, ensuring compatibility and durability for Chevrolet and GMC trucks requiring a harmonic balancer that maintains engine balance and reduces vibration.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces crankshaft vibration to prevent premature engine wear\u003c\/li\u003e\n\u003cli\u003eMaintains proper accessory belt alignment and tension\u003c\/li\u003e\n\u003cli\u003eHelps correct engine timing with integrated timing marks\u003c\/li\u003e\n\u003cli\u003eReplaces worn or damaged harmonic balancers in heavy-duty trucks\u003c\/li\u003e\n\u003cli\u003ePrevents noise and rough idling caused by balancer failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the crankshaft bore diameter matches the specified 1.930 inches (49.01 mm) for proper fitment. The balancer should be installed without a Woodruff key, as it is not included. Use appropriate tools to press the balancer onto the crankshaft carefully to avoid damage. Verify timing marks alignment during installation to maintain engine timing accuracy. Professional installation is recommended for optimal results.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco's Premium OEM Replacement Balancer PB1648N is manufactured to meet stringent quality standards, ensuring durability and reliable performance in demanding conditions. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":52149220507829,"sku":"BJTQ-PB1648N","price":365.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PB1648N_Fro.jpg?v=1775588099","url":"https:\/\/www.partcatalog.com\/products\/dayco-pb1648n-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}