Please check engine fitment below!
5150 AutoSport Coated Main Bearings are engineered for demanding performance builds where reliability and strength are non-negotiable. These bearings are coated with a proven dry-film lubricant that reduces friction, enhances wear resistance, and offers superior performance under high stress.
Whether you're running a high-boost turbo setup, pushing the limits on track, or building a street car with big power goals, these main bearings are made to handle it. The thermal-resistant coating helps safeguard the engine during low oil pressure events—minimizing the risk of bearing failure common in stock components under extreme conditions.
Tested in competitive and high-horsepower B48 builds, 5150 main bearings deliver consistent performance, long-term durability, and added peace of mind where it matters most.
Tech Notes:
- Always confirm bearing size and clearances before installation.
- Professional installation is strongly recommended due to the precision tools required.
- No returns accepted on engine bearings.
B46 ✔
B48 ✔
B4xTU ✔
B4xTU2 ✔
B4xTU3 ✖
B48E ✖
B48R ✖