The ACL 10B1580H-STD is a Standard Size High Performance connecting rod bearing set for the BMW S85B50 5.0L V10 engine. Standard size means it is sized for a stock, unmachined rod journal, making it the correct choice for a standard-tolerance engine build with no crank regrind.
Specifications:
- Type: Connecting Rod Bearing Set
- Series: High Performance
- Size: Standard
- Vehicle Platform: BMW M5, M6 (2006-2010)
- Part Number: 10B1580H-STD
FAQ
What does "Standard Size" mean on this bearing set?
Standard size means the bearing set is sized for a stock, unmachined rod journal — correct for a standard-tolerance build with no crank regrind.
What engine does the ACL 10B1580H-STD fit?
It's built for the BMW S85B50 5.0L V10 engine, as used in the M5 and M6.
What vehicles use the S85B50 V10?
The S85B50 powers the BMW M5 and M6 from the 2006 through 2010 model years.
Why does the part number start with "10B"?
The "10" reflects the ten-cylinder engine this set is bearing for — one bearing per rod journal on the S85B50 V10.

