This ACL High Performance Rod Bearing Set is machined 0.25mm over standard, for an S54B32 crankshaft that has been reground to that oversize spec. It fits the BMW S54B32 engine used in the M3 (2001-2006), Z3 Coupe/M Coupe/M Roadster/Roadster (2001-2002), Z4 M Coupe/M Roadster (2006-2008), and Z4 sDrive35i (2009).
Specifications:
- Type: Rod Bearing Set
- Series: High Performance
- Size: 0.25mm Oversized
- Engine Fitment: BMW S54B32
- Part Number: 6B1569H-.25
FAQ
What does "0.25mm Oversized" mean?
It means the bearings are machined 0.25mm larger than standard, for a more significantly reground crankshaft than the .025mm option.
What vehicles use the S54B32 engine?
The BMW M3 (2001-2006), Z3 Coupe/M Coupe/M Roadster/Roadster (2001-2002), Z4 M Coupe/M Roadster (2006-2008), and Z4 sDrive35i (2009).
Is this a main or rod bearing set?
Rod bearing set - it supports the connecting rods, not the crankshaft mains.

