{"product_id":"kolbenschmidt-main-bearings-bmw-n52-n53-n54-n55","title":"Kolbenschmidt Main Bearing Set - BMW N52\/N53\/N54\/N55","description":"\u003cp\u003eUpgrade your bottom end with genuine Kolbenschmidt main bearings, a trusted OE-quality manufacturer used widely across BMW's N-series engine lineup. Built for reliable clearance and durability under daily driving and spirited use alike.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e BMW N52B25, N52B30, N53B25, N53B30, N54B30, N55B30\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e — stock, unworn crank journals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.25mm Undersize\u003c\/strong\u003e — first regrind step\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.50mm Undersize\u003c\/strong\u003e — second regrind step\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ Before ordering an undersize set, confirm your crank has been machined to the matching undersize spec — check clearances with Plastigauge before final assembly.\u003c\/p\u003e","brand":"Kolbenschmidt","offers":[{"title":"Standard","offer_id":48850377113825,"sku":"77947600","price":87.99,"currency_code":"USD","in_stock":true},{"title":"0.25mm Undersize","offer_id":48850377146593,"sku":"77947610","price":87.99,"currency_code":"USD","in_stock":true},{"title":"0.50mm Undersize","offer_id":48850377179361,"sku":"77947620","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/7355\/2353\/files\/KOB-77947600-1.jpg?v=1785823442","url":"https:\/\/europeanengineparts.com\/products\/kolbenschmidt-main-bearings-bmw-n52-n53-n54-n55","provider":"European Engine Parts","version":"1.0","type":"link"}