ACL Race Series Engine Main Bearings Standard Size (7M1532H-STD) – For BMW Inline 6

Maximum Durability for Your High-Performance BMW Build

When you are rebuilding a high-revving BMW inline-six engine, standard factory bearings won't cut it. The ACL Race Series 7M1532H-STD main bearing set is designed to withstand the extreme RPMs, high temperatures, and intense oil demands of performance tuning. Whether you are building a turbo drift car, a street-tuned E46 in Auckland, or an E36 track toy, these bearings provide the ultimate failsafe for your crankshaft.

Why Choose ACL Race Series Bearings?

• Trimetal Hardness: Features a unique combination of strength, adaptability, and anti-seizure properties to handle heavy loads.
• Large Chamfers: Specifically engineered to clear oversized crankshaft radii common in performance modifications.
• Precise Oil Clearance: Designed with exact tolerances to ensure consistent oil pressure under harsh racing conditions.
• Standard (STD) Size: Perfect for fresh engine builds or block refreshes where the crankshaft journals have not been machined down.

???? Vehicle & Engine Compatibility

This kit fits a wide range of iconic BMW 6-cylinder petrol engines:

• Engine Codes: M20, M50, M52, M52TU, M54, S50, S52, S54
• BMW 3 Series: E30, E36, E46 (including M3)
• BMW 5 Series: E28, E34, E39, E60
• BMW Z Series: Z3, Z4 (including M Roadsters)

???? Specifications

• Brand: ACL Performance (Race Series)
• Part Number: 7M1532H-STD
• Size: Standard (STD)
• Components Included: Full set of crankshaft main bearings for one engine

Note: Please verify your crankshaft journal sizes before ordering. This is a Standard size kit and will not fit crankshafts that have been ground undersize.

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Quick NZ Shipping Note

• For NZ Customers: Fast local courier dispatch across the North & South Islands. Tracked delivery to your workshop or garage.