{"product_id":"dayco-pbo81190sc10-engine-harmonic-balancer","title":"Dayco PBO81190SC10 Engine Harmonic Balancer","description":"\u003ch2\u003eOverview of Dayco SC Performance 8 Rib 10% Overdrive Harmonic Balancer\u003c\/h2\u003e\u003cp\u003eThe Dayco SC Performance 8 Rib 10% Overdrive Engine Harmonic Balancer (Part Number PBO81190SC10) is engineered for select GM and related vehicles requiring precise crankshaft vibration dampening. Designed with durability and performance in mind, this harmonic balancer supports engine longevity and smooth operation in models like the Chevrolet Silverado and GMC Sierra.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab vehicles\u003c\/li\u003e\n\u003cli\u003eFeatures 9 bolt holes for secure mounting\u003c\/li\u003e\n\u003cli\u003eNeutral counterweight balance design without additional counterweights\u003c\/li\u003e\n\u003cli\u003eTwo integrated serpentine pulleys with 4 and 8 grooves respectively\u003c\/li\u003e\n\u003cli\u003eSteel outer ring for enhanced durability\u003c\/li\u003e\n\u003cli\u003eIncludes installation instructions for proper fitment\u003c\/li\u003e\n\u003cli\u003eTiming marks included for accurate engine timing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis harmonic balancer has a crank bore diameter of 1.481 inches (37.60 mm) and an overall outside diameter of 8.426 inches (214.00 mm). The nose outside diameter measures 2.126 inches (54.00 mm), while the overall width is 4.626 inches (117.50 mm). The balancer integrates two serpentine pulleys: the first pulley has 4 grooves with a diameter of 7.528 inches (191.20 mm), and the second pulley has 8 grooves with a diameter of 8.268 inches (210.00 mm). The steel outer ring and neutral counterweight balance ensure reliable vibration dampening without added imbalance. This part does not include hardware or a Woodruff key but comes with installation instructions to assist with proper setup.\u003c\/p\u003e\u003ch2\u003eAbout the SC Performance 8 Rib 10% Overdrive Product Line\u003c\/h2\u003e\u003cp\u003eThe SC Performance 8 Rib 10% Overdrive line by Dayco is designed to provide enhanced accessory drive performance by increasing pulley diameter by 10%, which can improve belt tension and accessory operation. This product line is tailored for applications requiring an 8-rib serpentine belt configuration, making it suitable for a range of GM and related vehicles. The design supports reliable engine harmonic balancing while accommodating performance-driven pulley ratios.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Silverado 1500, 2500, 3500 (including Classic and HD variants)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, 2500, 3500 (including Classic and HD variants)\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eBuick Rainier, Saab 9-7x, Isuzu Ascender\u003c\/li\u003e\n\u003cli\u003eHummer H2, H3, H3T\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche, Suburban, Tahoe, Trailblazer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Harmonic Balancer\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine vibration and crankshaft harmonics causing noise or wear\u003c\/li\u003e\n\u003cli\u003eWorn or damaged balancer leading to belt misalignment\u003c\/li\u003e\n\u003cli\u003eFailure of integrated pulleys affecting accessory drive belts\u003c\/li\u003e\n\u003cli\u003eIncorrect pulley ratios impacting accessory performance\u003c\/li\u003e\n\u003cli\u003eTiming mark visibility for accurate engine timing adjustments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the crank bore and bolt hole pattern match the engine specifications\u003c\/li\u003e\n\u003cli\u003eUse the included installation instructions for proper torque and alignment\u003c\/li\u003e\n\u003cli\u003eVerify timing marks align correctly during installation\u003c\/li\u003e\n\u003cli\u003eCheck belt routing and tension after installation to prevent premature wear\u003c\/li\u003e\n\u003cli\u003eHardware is not included; reuse existing bolts or source appropriate replacements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco harmonic balancers are manufactured to meet OEM standards for fit, form, and function. The steel outer ring construction and neutral counterweight design contribute to long service life and reliable engine performance. Installation instructions are provided to support correct application. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region and application.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391731171509,"sku":"BJTQ-PBO81190SC10","price":528.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PBO81190SC10_Fro.jpg?v=1774729424","url":"https:\/\/www.partcatalog.com\/products\/dayco-pbo81190sc10-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}