ACL performance main bearings are specially designed for the BMW 135i, 235i, 335i, 435i and M2 fitted with the N54 and N55 engines. Manufactured in Australia from a tri-metal alloy of tin, copper and steel, these bearings fit the crankshaft without any modifications. They are available in OEM thickness (Std) or 0.25" thicker (+0.25") for modified crankshafts.
This set of 7 pairs of main bearings is ideal for high-performance, forged engine configurations and offers direct fit without the need for additional modifications.
Features
- direct fit
- Set of 7 pairs
- Tri-metal (tin / copper / steel)
- OEM thickness (Std) or +0.25" for custom crankshafts
- Made in Australia
Technical specifications
- Material: Tri-metal (tin / copper / steel)
- Available thicknesses: OEM (Standard) or +0.25"
- Manufacturing: Made in Australia
Contents of the set
- ACL performance main bearings
- Set of 7 pairs
- Installation instructions
Frequently asked questions
Are these bearings suitable for both N54 and N55 engines?
Yes, they fit both engine types.
What thicknesses are available?
They are available in OEM thickness (Std) and +0.25" for modified crankshafts.
