{"product_id":"acl-bmw-m20b20-m20b23-m20b25-m20b27-standard-size-main-bearing-set-7m1539h-std","title":"ACL BMW M20B20\/M20B23\/M20B25\/M20B27 Standard Size Main Bearing Set | 7M1539H-STD","description":"\u003cp\u003eThis ACL Main Bearing Set is machined to standard size for a stock, unmachined BMW M20B20\/M20B23\/M20B25\/M20B27 crankshaft main journal. It fits a wide range of BMW models including the 323i\/Ci\/is, 325 series, 328i\/Ci\/is, 330i\/Ci\/xi, 525i, 528e\/i, 530i, M3, X3 2.5i\/3.0i, X5 3.0i, and Z3\/Z4.\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\u003eSize: Standard\u003c\/li\u003e\n\u003cli\u003eEngine Fitment: BMW M20B20 \/ M20B23 \/ M20B25 \/ M20B27\u003c\/li\u003e\n\u003cli\u003eVehicle Platform: BMW 323\/325\/328\/330 Series, 525i\/528i\/530i, M3, X3, X5, Z3, Z4\u003c\/li\u003e\n\u003cli\u003ePart Number: 7M1539H-STD\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat crankshaft condition does this bearing fit?\u003c\/h5\u003e\u003cp\u003eIt's sized to standard, matching a stock, unmachined BMW M20-series crankshaft main journal.\u003c\/p\u003e\u003ch5\u003eWhich M20 engine variants does this fit?\u003c\/h5\u003e\u003cp\u003eIt fits the M20B20, M20B23, M20B25, and M20B27 variants.\u003c\/p\u003e\u003ch5\u003eWhich BMW vehicles use this main bearing set?\u003c\/h5\u003e\u003cp\u003eIt covers a wide range of BMW models, including 323i, 325i, 328i, 330i, 525i, 528i, 530i, M3, X3, X5, Z3, and Z4.\u003c\/p\u003e\u003ch5\u003eIs this the same part as the 7M1532H family?\u003c\/h5\u003e\u003cp\u003eNo - this is a separate ACL part number (7M1539H) for the M20-series engines, distinct from the 7M1532H main bearing set.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What crankshaft condition does this bearing fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's sized to standard, matching a stock, unmachined BMW M20-series crankshaft main journal.\"}},{\"@type\":\"Question\",\"name\":\"Which M20 engine variants does this fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It fits the M20B20, M20B23, M20B25, and M20B27 variants.\"}},{\"@type\":\"Question\",\"name\":\"Which BMW vehicles use this main bearing set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It covers a wide range of BMW models, including 323i, 325i, 328i, 330i, 525i, 528i, 530i, M3, X3, X5, Z3, and Z4.\"}},{\"@type\":\"Question\",\"name\":\"Is this the same part as the 7M1532H family?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No - this is a separate ACL part number (7M1539H) for the M20-series engines, distinct from the 7M1532H main bearing set.\"}}]}\u003c\/script\u003e","brand":"ACL","offers":[{"title":"Default Title","offer_id":42646548152368,"sku":"ACL7M1539H-STD","price":413.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/764a59a7fd5d74a6e75fe7b68c309554L_64fd9191-9854-498f-beea-cc7cd5aec07b.png?v=1765648582","url":"https:\/\/berryperformancesales.com\/products\/acl-bmw-m20b20-m20b23-m20b25-m20b27-standard-size-main-bearing-set-7m1539h-std","provider":"Berry Performance Sales","version":"1.0","type":"link"}