{"product_id":"crankshaft-14mm-pulley-boss-space","title":"Crankshaft 14mm Pulley Boss Space","description":"The Maruha Motors original crankshaft is a precision-engineered component for BP engines, featuring an 85mm stroke that matches the genuine crankshaft's specifications. This crankshaft is designed for compatibility with NA8C and NB8C models, offering a robust solution for engine overhauls and performance enhancements.\n\nA critical design improvement over the genuine crankshaft is the extended snout length. The factory crankshaft offers only 6mm of space for the pulley boss, which is insufficient to securely mount the heavy front pulley and withstand the tension from drive belts for the alternator, air conditioning, and power steering. This can lead to friction, uneven wear between the crankshaft and pulley boss, and eventual failure. Maruha's design rectifies this by providing a 14mm space for the pulley boss, ensuring a stable connection and a prolonged expected lifetime for the component.\n\nIn addition to addressing the snout length issue, the Maruha original crankshaft is over 1kg lighter than the genuine one, contributing to improved engine response. This crankshaft is available in both 85mm and 87mm stroke options, with the 85mm version recommended for standard overhauls to maintain original specifications. The 87mm version is available for those seeking increased displacement and performance, though it may require specific adjustments such as a +1mm thicker head gasket to accommodate the 1mm piston protrusion.","brand":"Maruha Motors","offers":[{"title":"Default Title","offer_id":52689003348280,"sku":"mar20110085","price":725.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687502915.jpg?v=1784900195","url":"https:\/\/store.motormia.co\/products\/crankshaft-14mm-pulley-boss-space","provider":"MOTORMIA","version":"1.0","type":"link"}