{"product_id":"dayco-pb2221sc-engine-harmonic-balancer","title":"Dayco PB2221SC Engine Harmonic Balancer","description":"\u003ch2\u003eOverview of Dayco Supercharger Performance Balancer PB2221SC\u003c\/h2\u003e\u003cp\u003eThe Dayco Supercharger Performance Balancer PB2221SC is engineered for precision and durability in engine harmonic balancing. Designed specifically for select Chevrolet, GMC, Oldsmobile, and Pontiac models, this balancer supports optimal engine performance by reducing vibrations and maintaining crankshaft stability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Chevrolet Bel Air, Camaro, Caprice, Corvette, El Camino, Impala, Malibu, Monte Carlo, Nova\u003c\/li\u003e\n\u003cli\u003eFits GMC Blazer, C10 Suburban, C20 Suburban, C1500, C2500, G10, G20, G30, Jimmy, K5 Blazer, K10 Suburban, K20 Suburban, K1500, K2500\u003c\/li\u003e\n\u003cli\u003eAlso fits Oldsmobile Starfire, Monza and Pontiac Firebird, Sunbird\u003c\/li\u003e\n\u003cli\u003ePart Number: PB2221SC\u003c\/li\u003e\n\u003cli\u003e9 bolt holes for secure mounting\u003c\/li\u003e\n\u003cli\u003eNeutral counterweight balance with no counterweight\u003c\/li\u003e\n\u003cli\u003eSteel outer ring for durability\u003c\/li\u003e\n\u003cli\u003eIncludes timing marks for accurate engine timing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCrank bore diameter: 1.245 inches (31.60 mm)\u003c\/li\u003e\n\u003cli\u003eNose outside diameter: 1.762 inches (44.75 mm)\u003c\/li\u003e\n\u003cli\u003eOverall outside diameter: 6.752 inches (171.50 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width: 2.343 inches (59.50 mm)\u003c\/li\u003e\n\u003cli\u003eRing width: 1.299 inches (32.99 mm)\u003c\/li\u003e\n\u003cli\u003eNo integrated pulleys included\u003c\/li\u003e\n\u003cli\u003eNo crank trigger or exciter plate\u003c\/li\u003e\n\u003cli\u003eHardware and installation instructions not included\u003c\/li\u003e\n\u003cli\u003eWoodruff key not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Supercharger Performance Balancer Line\u003c\/h2\u003e\u003cp\u003eThe Dayco Supercharger Performance Balancer line is designed to meet the demands of high-performance and supercharged engines. This product line focuses on delivering precise harmonic balancing without added counterweights, which helps maintain engine reliability and smooth operation under increased load conditions. The PB2221SC model is part of this line, providing a steel outer ring construction and timing marks to support accurate engine tuning and durability.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces crankshaft vibration in Chevrolet, GMC, Oldsmobile, and Pontiac engines\u003c\/li\u003e\n\u003cli\u003eHelps prevent premature wear of engine components caused by imbalance\u003c\/li\u003e\n\u003cli\u003eSupports consistent engine timing with integrated timing marks\u003c\/li\u003e\n\u003cli\u003eImproves engine smoothness in vehicles with supercharged setups\u003c\/li\u003e\n\u003cli\u003eCompatible with a wide range of classic and performance models for reliable fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the crank bore diameter matches 1.245 inches (31.60 mm) for proper fit\u003c\/li\u003e\n\u003cli\u003eVerify bolt hole quantity of 9 for secure mounting\u003c\/li\u003e\n\u003cli\u003eUse appropriate hardware as none is included with this part\u003c\/li\u003e\n\u003cli\u003eCheck timing marks alignment during installation for accurate engine timing\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended to avoid damage to the harmonic balancer or crankshaft\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the PB2221SC harmonic balancer to meet strict quality standards, using a durable steel outer ring and precise machining tolerances. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to ensure reliable performance in compatible Chevrolet, GMC, Oldsmobile, and Pontiac vehicles.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391730679989,"sku":"BJTQ-PB2221SC","price":264.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PB2221SC_Fro.jpg?v=1774729422","url":"https:\/\/www.partcatalog.com\/products\/dayco-pb2221sc-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}