{"product_id":"dayco-pb1688n-engine-harmonic-balancer","title":"Dayco PB1688N Engine Harmonic Balancer","description":"\u003ch2\u003eOverview of Dayco Premium OEM Replacement Balancer PB1688N\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer PB1688N is engineered for reliable performance in select Buick, Cadillac, Oldsmobile, and Pontiac vehicles. Designed as an engine harmonic balancer, it helps maintain engine smoothness and reduces vibration in compatible models such as the Buick Lucerne and Cadillac DeVille.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNeutral counterweight balance with no counterweight\u003c\/li\u003e\n\u003cli\u003eCrank bore diameter of 1.373 inches (34.85 mm)\u003c\/li\u003e\n\u003cli\u003eSingle integrated serpentine pulley with 6 grooves\u003c\/li\u003e\n\u003cli\u003eCast iron outer ring for durability\u003c\/li\u003e\n\u003cli\u003eOverall outside diameter of 7.304 inches (185.50 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width of 1.678 inches (42.60 mm)\u003c\/li\u003e\n\u003cli\u003eNo crank trigger\/exciter plate included\u003c\/li\u003e\n\u003cli\u003eHardware and installation instructions not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco PB1688N engine harmonic balancer is a precision component designed to reduce torsional vibration in the crankshaft of compatible engines. Featuring a neutral counterweight balance, this balancer does not include additional counterweights, making it suitable for specific engine configurations in Buick Aurora, Cadillac DTS, Oldsmobile Aurora, Pontiac Bonneville, and other models. The balancer includes one integrated serpentine pulley with six grooves, measuring 7.008 inches (178.00 mm) in diameter, which supports accessory belt routing.\u003c\/p\u003e\u003cp\u003eConstructed with a cast iron outer ring, the balancer offers strength and wear resistance. The crank bore diameter is precisely 1.373 inches (34.85 mm), ensuring a proper fit on the crankshaft. The overall width of 1.678 inches (42.60 mm) and nose outside diameter of 2.063 inches (52.40 mm) are designed to meet OEM specifications for smooth engine operation.\u003c\/p\u003e\u003ch2\u003eAbout the Premium OEM Replacement Balancer Line\u003c\/h2\u003e\u003cp\u003eDayco's Premium OEM Replacement Balancer line focuses on delivering components that meet original equipment manufacturer standards for fit, form, and function. The PB1688N is part of this line, providing a direct replacement solution for harmonic balancers in select GM vehicles. This product line emphasizes durability and precise engineering to maintain engine balance and accessory drive performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces crankshaft vibration to prevent premature engine wear\u003c\/li\u003e\n\u003cli\u003eReplaces worn or damaged harmonic balancers causing belt misalignment\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration issues related to balancer failure\u003c\/li\u003e\n\u003cli\u003eRestores proper serpentine belt tension and routing\u003c\/li\u003e\n\u003cli\u003ePrevents engine performance issues linked to harmonic balancer degradation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure crank bore diameter matches 1.373 inches (34.85 mm) for proper fit\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the balancer onto the crankshaft without damage\u003c\/li\u003e\n\u003cli\u003eVerify pulley alignment and belt routing after installation\u003c\/li\u003e\n\u003cli\u003eNote that hardware and installation instructions are not included; refer to vehicle service manual\u003c\/li\u003e\n\u003cli\u003eCheck for any timing marks or keys on the crankshaft as this balancer does not include a Woodruff key or timing marks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer PB1688N is manufactured to meet OEM quality standards, ensuring reliable performance and durability. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand's commitment to automotive component standards.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391728058549,"sku":"BJTQ-PB1688N","price":91.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PB1688N_Ang.jpg?v=1774729414","url":"https:\/\/www.partcatalog.com\/products\/dayco-pb1688n-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}