5150 AutoSport High Performance Main Bearing Set, BMW M20

5150 AutoSport's High-Performance Coated Main Bearing Set for BMW M20 engines is engineered for maximum durability and efficiency in high-performance builds. Coated by Calico, these bearings reduce friction, allowing the engine to generate more power while resisting wear from extreme stress and high RPMs.

The advanced thermal-resistant coating makes them ideal for forced induction and racing applications, providing reliable protection even during oil pressure loss, which is crucial for preventing catastrophic engine failure. Proven in both street and track conditions, these bearings consistently outperform OEM options, offering greater longevity and reliability.

Tech Notes: 

• As with all bearings, please check your tolerances and size before installation.
• Due to the specialized tools needed, professional install recommended.
• There are no returns available on any engine bearings.
  

BMW M20B20 Applications:

BMW 3 Series

1977-1982     E21     320 / 326
1982-1994     E30     320i

BMW 5 Series

1977-1981     E12     520 / 526
1981-1987     E28     520i

BMW 7 Series

1981-1987     E23     720i

BMW M20B23 Applications:

BMW 3 Series

1977-1982     E21     323i
1982-1994     E30     323i

BMW M20B25 Applications:

BMW 3 Series

1985-1993     E30     325i / 325is / 325ix

BMW 5 Series

1987-1990     E34     525i

BMW M20B27 Applications:

BMW 3 Series

1982-1987     E30     325e / 325es [North America]

BMW 5 Series

1982-1987     E28     525e / 528e