5150 AutoSport Xtreme Main Bearing Set, BMW S54

5150 Xtreme Race Bearings – BMW S54

Our 5150 Xtreme race bearings have been thoroughly validated in road racing environments, with proven performance in naturally aspirated engines producing over 480 HP and turbocharged applications exceeding 1400 HP. Developed and tested under extreme conditions, they provide the consistency and durability required when engines are pushed to their limits.

Designed specifically for the BMW S54 platform, 5150 Xtreme bearings are intended for race use. Each bearing is precision-treated, coated, and measured to ensure optimal fit and performance. Each bearing shell is measured and matched in-house before kitting to ensure precise fit and consistency.

Compared to OEM bearings, these coated variants offer increased thermal tolerance, making them well-suited for engines subjected to the elevated temperatures and sustained stress of track use. The coating reduces friction and promotes stable operation under high load, while also providing an added layer of protection during harsh conditions, including brief periods of reduced lubrication.

Tech Notes:

• Verify all clearances and sizing prior to installation
• Professional installation is recommended due to required tools and precision
• Engine bearings are not eligible for return

BMW S54 Applications:

BMW 3 Series

2000-2006     E46     M3

BMW Z3 Series

2001-2002     Z3     M

BMW Z4 Series

2006-2008     Z4     M