M20 ACL Race Main Bearing Set

The ACL Race Series crankshaft main bearing set for the BMW M20.

• Set of 14 bearings
• Early models (1987 and older): standard size only
• Late models (1988 and newer): standard or 0.25 mm undersize
• Fits all BMW M20 engines

Not sure which M20 block you have? Our M20 Bearing Differences page shows you how to check the main bearing cap and determine whether your block is early or late before ordering.

From completely stock engines to high-horsepower monsters, we use ACL Race Series bearings across the full range of M20 engines we build in-house.