{"product_id":"dayco-pb1771n-engine-harmonic-balancer","title":"Dayco PB1771N Engine Harmonic Balancer","description":"\u003ch2\u003eOverview of Dayco Premium OEM Replacement Balancer PB1771N\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer PB1771N is engineered for precise fitment on BMW 760i and 760Li models. Designed to maintain engine balance and pulley function, this harmonic balancer supports smooth engine operation and accessory drive performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 760i and 760Li\u003c\/li\u003e\n\u003cli\u003ePart number PB1771N for exact replacement\u003c\/li\u003e\n\u003cli\u003e8 bolt holes for secure mounting\u003c\/li\u003e\n\u003cli\u003eNeutral counterweight balance with no additional counterweights\u003c\/li\u003e\n\u003cli\u003eTwo integrated serpentine pulleys with 4 and 6 grooves respectively\u003c\/li\u003e\n\u003cli\u003eSteel outer ring for durability\u003c\/li\u003e\n\u003cli\u003eOverall outside diameter of 180 mm (7.087 inches)\u003c\/li\u003e\n\u003cli\u003eOverall width of 62 mm (2.441 inches)\u003c\/li\u003e\n\u003cli\u003eCrank bore diameter of 38 mm (1.497 inches)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer PB1771N is a direct replacement harmonic balancer designed specifically for BMW 760i and 760Li engines. It features a neutral counterweight balance, meaning it does not include any additional counterweights, which helps maintain the original engine balance specifications. The balancer includes two integrated serpentine pulleys—one with 4 grooves and the other with 6 grooves—both measuring 149 mm (5.867 inches) in diameter, supporting accessory belt routing as per OEM standards.\u003c\/p\u003e\u003cp\u003eThe outer ring is constructed from steel, providing strength and resistance to wear. The balancer’s overall outside diameter is 180 mm (7.087 inches), with a width of 62 mm (2.441 inches), ensuring proper fitment and function within the engine’s cylinder block components. The crank bore diameter is 38 mm (1.497 inches), matching the crankshaft specifications for a secure fit. This part does not include hardware or installation instructions, and it does not have timing marks or a crank trigger\/exciter plate.\u003c\/p\u003e\u003ch2\u003eAbout the Premium OEM Replacement Balancer Line\u003c\/h2\u003e\u003cp\u003eDayco’s Premium OEM Replacement Balancer line is designed to meet original equipment manufacturer specifications for fit, form, and function. This product line focuses on delivering reliable replacement parts that maintain engine balance and accessory drive performance without modification. The PB1771N is part of this line, ensuring compatibility and durability for BMW 760i and 760Li engines.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or damaged harmonic balancers on BMW 760i and 760Li\u003c\/li\u003e\n\u003cli\u003eResolves engine vibration caused by imbalanced crankshaft components\u003c\/li\u003e\n\u003cli\u003eRestores proper accessory belt alignment and tension\u003c\/li\u003e\n\u003cli\u003eEliminates noise or pulley wobble from deteriorated balancer rings\u003c\/li\u003e\n\u003cli\u003ePrevents premature wear on belts and engine accessories\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 the engine crankshaft (38 mm)\u003c\/li\u003e\n\u003cli\u003eVerify bolt hole alignment with the 8-bolt pattern on the crankshaft flange\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for mounting bolts to avoid damage\u003c\/li\u003e\n\u003cli\u003eInspect accessory belts and pulleys during installation for wear\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended due to precise fitment requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer PB1771N is manufactured to meet OEM standards for durability and performance. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to ensure reliability in engine harmonic balancing and pulley operation. Compatibility with BMW 760i and 760Li models is verified to support proper engine function.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391729729717,"sku":"BJTQ-PB1771N","price":384.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PB1771N_Ang.jpg?v=1774729420","url":"https:\/\/www.partcatalog.com\/products\/dayco-pb1771n-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}