{"product_id":"acl-honda-b-series-main-bearing-set-5m1959h-25","title":"ACL Honda B-Series 0.25mm Undersize Main Bearing Set | 5M1959H-.25","description":"\u003cp\u003eThe ACL 5M1959H-.25 is an H-Series main bearing set for Honda B-Series engines, machined 0.25mm undersize to fit a crankshaft that has been reground 0.25mm below stock journal diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Main Bearing Set\u003c\/li\u003e\n\u003cli\u003eSeries: H-Series\u003c\/li\u003e\n\u003cli\u003eSize: 0.25mm Undersize\u003c\/li\u003e\n\u003cli\u003eEngine Fitment: Honda B-Series\u003c\/li\u003e\n\u003cli\u003ePart Number: 5M1959H-.25\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat does \"0.25mm Undersize\" mean on this bearing set?\u003c\/h5\u003e\u003cp\u003eIt means the bearing shells are sized to fit a crankshaft journal that has been reground 0.25mm below the factory diameter.\u003c\/p\u003e\u003ch5\u003eWhich engines does the 5M1959H-.25 fit?\u003c\/h5\u003e\u003cp\u003eIt fits Honda B-Series engines.\u003c\/p\u003e\u003ch5\u003eWill this bearing fit a standard, non-reground crankshaft?\u003c\/h5\u003e\u003cp\u003eNo. This 0.25mm undersize set requires a crankshaft that has already been reground 0.25mm below stock; a standard-diameter crank needs the STD-size version.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does 0.25mm Undersize mean on this bearing set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It means the bearing shells are sized to fit a crankshaft journal that has been reground 0.25mm below the factory diameter.\"}},{\"@type\":\"Question\",\"name\":\"Which engines does the 5M1959H-.25 fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It fits Honda B-Series engines.\"}},{\"@type\":\"Question\",\"name\":\"Will this bearing fit a standard, non-reground crankshaft?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This 0.25mm undersize set requires a crankshaft that has already been reground 0.25mm below stock; a standard-diameter crank needs the STD-size version.\"}}]}\u003c\/script\u003e","brand":"ACL","offers":[{"title":"Default Title","offer_id":42899959316528,"sku":"BBBV_5M1959H-.25","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/AEB5M1959H-.25.jpg?v=1775096166","url":"https:\/\/berryperformancesales.com\/products\/acl-honda-b-series-main-bearing-set-5m1959h-25","provider":"Berry Performance Sales","version":"1.0","type":"link"}