This ACL Main Bearing Set is machined to standard size for a stock, unmachined BMW M20/M50/M52/M54 1919cc crankshaft (80.0mm bore, 66.0mm stroke). 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.
Specifications:
- Type: Main Bearing Set
- Size: Standard
- Engine Fitment: BMW M20/M50/M52/M54, 1919cc, 80.0mm Bore x 66.0mm Stroke
- Vehicle Platform: BMW 323/325/328/330 Series, 525i/528i/530i, M3, X3, X5, Z3, Z4
- Part Number: 7M1532H-STD
FAQ
What crankshaft condition does this standard-size bearing set fit?
It fits a stock, unmachined crankshaft main journal that has not been reground.
What engine is this bearing set designed for?
It's designed for the BMW M20/M50/M52/M54 1919cc engine family, with an 80.0mm bore and 66.0mm stroke.
Which BMW vehicles can use this main bearing set?
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.
Do I need an oversized bearing instead if my crankshaft was reground?
Yes - if the main journals were reground undersize, an oversized version of this bearing set (such as .025mm or .25mm) is needed instead.
