ACL Race Conrod bearings BMW M40/42/43/44 (HX-STD)
ACL
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Write a reviewACL bearings are used for tuning and engine upgrades where you want better quality with higher bearing capacity than normal standard bearings.
Improvements of material, dynamic thickness, heat conduction, oil grooves and oil distribution are some of the points that make ACL one of the leading bearing manufacturers.
Bearing data
Part number: 4B1490HX
Bearing size: STD
Bearing half type: Identical halves
Bearing material: F781
Technical data (mm)
Max overall length: 18
Max shaft size: 44.991
Max tunnel size: 48.016
Max vertical oil clearance: 0.103
Max wall at crown: 1.477
Min shaft size: 44.975
Min tunnel size: 48
Min vertical oil clearance: 0.055
Technical data (in)
Max overall length: 0.7087
Max shaft size: 1.7713
Max tunnel size: 1.8904
Max vertical oil clearance: 0.0041
Max wall at crown: 0.0581
Min shaft size: 1.7707
Min tunnel size: 1.8898
Min vertical oil clearance: 0.0022
Engine code
M40B16 / M40B18 / M42B18 / M43B16 / M43B18 / M43B19 (TU) / M44B19
Application
BMW M40B16 1596cc Inline4 SOHC 2v
BMW M40B18 1796cc Inline4 SOHC 2v
BMW M42B18 1796cc Inline4 DOHC 4v
BMW M43B16 1596cc Inline4 SOHC 2v
BMW M43B18 1796cc Inline4 SOHC 2v
BMW M43B19 (TU) 1895cc Inline4 SOHC 2v
BMW M44B19 1895cc Inline4 DOHC 4v
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Guides & Info
| Bilmärke | BMW |
| Engine code | M40 |
| Engine code | M42 |
| Engine code | M43 |
| Engine code | M44 |
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