{"product_id":"acl-bmw-m20-m50-m52-m54-1919cc-80mm-bore-66mm-stroke-25mm-oversized-main-bearing-set-7m1532h-25","title":"ACL BMW M20\/M50\/M52\/M54 1919cc 80.0mm Bore 66.0mm Stroke .25mm Oversized Main Bearing Set | 7M1532H-.25","description":"\u003cp\u003eThis ACL Main Bearing Set is machined .25mm over standard size, built for a BMW M20\/M50\/M52\/M54 1919cc engine (80.0mm bore, 66.0mm stroke) whose crankshaft has been reground .25mm undersize on the main journals. 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: .25mm Oversized\u003c\/li\u003e\n\u003cli\u003eEngine Fitment: BMW M20\/M50\/M52\/M54, 1919cc, 80.0mm Bore x 66.0mm Stroke\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: 7M1532H-.25\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhen should I use a .25mm oversized main bearing set?\u003c\/h5\u003e\u003cp\u003eUse it when the crankshaft's main journals have been reground .25mm under standard size, which requires a correspondingly oversized bearing to maintain proper clearance.\u003c\/p\u003e\u003ch5\u003eWhat engine is this bearing set designed for?\u003c\/h5\u003e\u003cp\u003eIt's designed for the BMW M20\/M50\/M52\/M54 1919cc engine family, with an 80.0mm bore and 66.0mm stroke.\u003c\/p\u003e\u003ch5\u003eWhich BMW vehicles can use this main bearing set?\u003c\/h5\u003e\u003cp\u003eIt covers a wide range of BMW models built on the M20\/M50\/M52\/M54 engine, including 323i, 325i, 328i, 330i, 525i, 528i, 530i, M3, X3, X5, Z3, and Z4.\u003c\/p\u003e\u003ch5\u003eHow does the .25mm version differ from the .025mm version?\u003c\/h5\u003e\u003cp\u003eThe .25mm bearing is sized for a crankshaft reground .25mm under standard, a larger regrind than the .025mm version, which is meant for only a slight .025mm regrind.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"When should I use a .25mm oversized main bearing set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use it when the crankshaft's main journals have been reground .25mm under standard size, which requires a correspondingly oversized bearing to maintain proper clearance.\"}},{\"@type\":\"Question\",\"name\":\"What engine is this bearing set designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's designed for the BMW M20\/M50\/M52\/M54 1919cc engine family, with an 80.0mm bore and 66.0mm stroke.\"}},{\"@type\":\"Question\",\"name\":\"Which BMW vehicles can use this main bearing set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It covers a wide range of BMW models built on the M20\/M50\/M52\/M54 engine, including 323i, 325i, 328i, 330i, 525i, 528i, 530i, M3, X3, X5, Z3, and Z4.\"}},{\"@type\":\"Question\",\"name\":\"How does the .25mm version differ from the .025mm version?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The .25mm bearing is sized for a crankshaft reground .25mm under standard, a larger regrind than the .025mm version, which is meant for only a slight .025mm regrind.\"}}]}\u003c\/script\u003e","brand":"ACL","offers":[{"title":"Default Title","offer_id":42631473004592,"sku":"ACL7M1532H-.25","price":435.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/40122eef7c72ad8aedbf813a6911e74f_8318f741-1492-4b48-b35a-27d75b7d710e.png?v=1765198168","url":"https:\/\/berryperformancesales.com\/products\/acl-bmw-m20-m50-m52-m54-1919cc-80mm-bore-66mm-stroke-25mm-oversized-main-bearing-set-7m1532h-25","provider":"Berry Performance Sales","version":"1.0","type":"link"}