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