{"product_id":"dayco-pb1138n-engine-harmonic-balancer","title":"Dayco PB1138N Engine Harmonic Balancer","description":"\u003ch2\u003eOverview of Dayco Premium OEM Replacement Balancer PB1138N\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer PB1138N is engineered for Nissan Sentra models requiring precise engine harmonic balancing. Designed to meet OEM specifications, this balancer ensures smooth engine operation and reliable performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Nissan Sentra vehicles\u003c\/li\u003e\n\u003cli\u003eNeutral counterweight balance with no counterweight\u003c\/li\u003e\n\u003cli\u003eCrank bore diameter of 1.062 inches (26.96 mm)\u003c\/li\u003e\n\u003cli\u003eTwo integrated serpentine pulleys with 4 and 6 grooves respectively\u003c\/li\u003e\n\u003cli\u003eCast iron outer ring for durability\u003c\/li\u003e\n\u003cli\u003eIncludes timing marks for accurate installation\u003c\/li\u003e\n\u003cli\u003eOverall outside diameter of 6.418 inches (163 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width of 1.819 inches (46.20 mm)\u003c\/li\u003e\n\u003cli\u003eNo hardware or installation instructions included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Premium OEM Replacement Balancer Product Line\u003c\/h2\u003e\u003cp\u003eThe Dayco Premium OEM Replacement Balancer line is designed to provide direct-fit replacements that match original equipment specifications. This product line focuses on delivering components that maintain engine balance and reduce vibration without requiring modifications. The PB1138N model exemplifies this approach by offering a neutral counterweight design and integrated serpentine pulleys that align with factory standards for Nissan Sentra engines.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe PB1138N engine harmonic balancer features a cast iron outer ring that contributes to its structural integrity and longevity. It has a crank bore size of 1.062 inches (26.96 mm), ensuring a precise fit on the crankshaft. The balancer includes two serpentine pulleys: one with 4 grooves and a diameter of 5.079 inches (129 mm), and another with 6 grooves measuring 6.142 inches (156 mm). These pulleys facilitate proper belt routing for engine accessories. The balancer’s overall dimensions—6.418 inches in diameter and 1.819 inches in width—are designed to match OEM specifications for the Nissan Sentra. Timing marks are present to assist with accurate installation alignment. This part does not include hardware or installation instructions, so professional installation is recommended.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces engine vibration caused by harmonic imbalances\u003c\/li\u003e\n\u003cli\u003eReplaces worn or damaged harmonic balancers in Nissan Sentra engines\u003c\/li\u003e\n\u003cli\u003eRestores proper pulley alignment for serpentine belt systems\u003c\/li\u003e\n\u003cli\u003ePrevents premature wear on crankshaft and accessory components\u003c\/li\u003e\n\u003cli\u003eHelps maintain engine timing accuracy with integrated timing marks\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 (1.062 inches)\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damage to the cast iron outer ring during installation\u003c\/li\u003e\n\u003cli\u003eAlign timing marks carefully to maintain engine timing accuracy\u003c\/li\u003e\n\u003cli\u003eVerify pulley groove counts and sizes to match belt routing requirements\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended due to the absence of included hardware and instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco’s Premium OEM Replacement Balancer PB1138N is manufactured to meet stringent OEM standards for fit and function. The cast iron construction and precise machining contribute to reliable performance and durability. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support long-term use in Nissan Sentra vehicles.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391716360373,"sku":"BJTQ-PB1138N","price":136.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PB1138N_Fro.jpg?v=1774729378","url":"https:\/\/www.partcatalog.com\/products\/dayco-pb1138n-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}