{"product_id":"dayco-pb1256n-engine-harmonic-balancer","title":"Dayco PB1256N Engine Harmonic Balancer","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eDayco PB1256N is a premium OEM replacement harmonic balancer for select Toyota applications. It is built with a neutral balance design, a cast iron outer ring, and timing marks for accurate engine service.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNeutral balance design with no counterweight.\u003c\/li\u003e\n\u003cli\u003eCast iron outer ring for durable engine damping.\u003c\/li\u003e\n\u003cli\u003eIntegrated serpentine pulley with 5 grooves.\u003c\/li\u003e\n\u003cli\u003eTiming marks included for service alignment.\u003c\/li\u003e\n\u003cli\u003e4-bolt hole configuration with a 32.80 mm crank bore.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dayco harmonic balancer, part number PB1256N, is engineered as a premium OEM replacement for engines that require controlled crankshaft vibration damping and accessory drive support. The unit measures 145.00 mm overall outside diameter, 59.00 mm overall width, and 46.00 mm nose outside diameter, with a 140.00 mm pulley outside diameter and a 26.80 mm ring width. The integrated pulley uses a serpentine profile with 5 grooves, and the balancer includes timing marks for setup and inspection. PB1256N cross-references ATP 102153, Dorman 594-141, and Pioneer DA-29 for the same application.\u003c\/p\u003e\u003cp\u003eCompatible With Toyota Tacoma, Toyota 4Runner, and Toyota T100 applications listed below. Use PB1256N when replacing a worn harmonic balancer that shows pulley wear, timing mark visibility issues, or imbalance-related vibration. This part number, PB1256N, is a direct fit for the specified Toyota engine applications and supports the original accessory drive layout.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine vibration from a deteriorated balancer.\u003c\/li\u003e\n\u003cli\u003eWorn or damaged serpentine pulley surfaces.\u003c\/li\u003e\n\u003cli\u003eTiming mark visibility during service work.\u003c\/li\u003e\n\u003cli\u003eCrankshaft damping concerns caused by imbalance.\u003c\/li\u003e\n\u003cli\u003eAccessory drive noise related to balancer wear.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify crank bore, bolt pattern, pulley groove count, and overall dimensions before installation. This balancer does not include hardware, installation instructions, or a Woodruff key. Confirm timing mark orientation and inspect the crankshaft snout and pulley alignment during replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDayco positions PB1256N as a premium OEM replacement balancer for service applications that require accurate fit and function. Part number PB1256N is built to match the listed Toyota fitments and maintain the original engine accessory drive configuration.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":53497246351541,"sku":"BJTQ-PB1256N","price":158.46,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_PB1256N_Fro.jpg?v=1791522255","url":"https:\/\/www.partcatalog.com\/products\/dayco-pb1256n-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}