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ACL Race Series Reinforced Main Bearings - BMW S50, S54 (M3 E36, M3 E46, Z4M...)

ACL

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ACL Race Series Main Bearings

ACL trimetal main bearings
To suit high RPM/load applications
Offer reduced friction and operating temperatures
Increased oil supply and overall lubrication
To fit : BMW S50, S54 (E36, E46, E85, E86) - full application list below
Made in Australia

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1 x ACL Race Series Bearings - Standard Size (P/N 7M1532H-STD) +€185.99 (40+ in stock)
1 x ACL Race Series Bearings - HX Size (P/N 7M1532HX-STD) +€185.99 (Dispatched under 5 to 6 days)
1 x ACL Race Series Bearings - Repair Size 0.025 mm (P/N 7M1532H-.025) +€185.99 (Dispatched under 5 to 6 days)
1 x ACL Race Series Bearings - Repair Size 0.25 mm (P/N 7M1532H-.25) +€185.99 (Dispatched under 5 to 6 days)
1 x ACL Race Series Bearings - Repair Size 0.50 mm (P/N 7M1532H-.50) +€185.99 (Dispatched under 5 to 6 days)
Optional oil pan gasket
1 x BMW OEM Oil Pan Gasket for 6 Cyl. Petrol Engines E34, E36, E39, E46, E60... (Part no. 11131437237) +€39.99 (16 in stock)

€0.00

Engineering Bulletin

ACL provides an official guide for clearance control and optimization, and guidelines for bearing size selection : download it here.

ACL Race Series Reinforced Main Bearings

Designed to withstand high RPM, temperatures and load, these ACL Race Series bearings are manufactured from 3 layers of hardened steel, copper and nickel. This "trimetal" composition substantially lowers friction, and thus reduces the operating temperatures while providing superior lubrication.

To help engine builders optimise clearances for their specific applications, ACL provides a range of different bearing sizes for standard crankshaft journal sizes:

H-STD: Bearing thickness is precision finished to provide a nominal clearance based on OEM specifications. Suitable for all applications using crankshafts finished to OEM specifications.
HX-STD: Providing an extra .001" (0.025mm) of clearance over the H-STD size bearings. Suitable for high to extreme power applications where additional clearance is beneficial to part reliability.
H-001 / H-.025: Providing a reduction of .001" (0.025mm) of clearance over the H-STD size bearings. Suitable for adjusting clearance to compensate for surface reconditioning (polishing) of crankshaft journals or the use of low viscosity lubricants.

Please note: there are also HD (with location dowel holes) and HXD (with location dowel holes and 0.025mm (0.001") extra clearance) part numbers, reserved for some connecting rod bearing applications only.

Application List & Engine Codes

BMW/M3 (E46)/DOHC 24v/S54B32
BMW/3 coupe (E46)/M3/S54B32
BMW/3 coupe (E46)/M3 CSL/S54B32
BMW/3 Convertible (E46)/M3/S54B32
BMW/Z3 coupe (E36)/M/S54B32
BMW/Z3 Roadster (E36)/M 3.2/S54B32
BMW/Z4 coupe (E86)/M/S54B32
BMW/Z4 Roadster (E85)/M/S54B32
BMW/328, 528, Z3/DOHC 24v/M52B28
BMW/M3 (E36)/DOHC 24v/S50B30
BMW/M3 (E36)/DOHC 24v/S50B32
BMW/M3 (E36)/DOHC 24v/S52B32
BMW/3 (E36)/320 i/M52B20
BMW/3 (E36)/325 i/M50B25
BMW/3 (E36)/323 i/M52B25
BMW/3 (E36)/328 i/M52B28
BMW/3 (E36)/M3 3.0/S50B30
BMW/3 (E36)/M3 3.2/S50B32
BMW/3 (E46)/320 i/M52B20
BMW/3 (E46)/320 i/M54B22
BMW/3 (E46)/323 i/M52B25
BMW/3 (E46)/325 xi/M54B25
BMW/3 (E46)/325 i/M54B25
BMW/3 (E46)/328 i/M52B28
BMW/3 (E46)/330 d/M57D30
BMW/3 (E46)/330 xd/M57D30
BMW/3 (E46)/330 xi/M54B30
BMW/3 (E46)/330 i/M54B30
BMW/3 Compact (E36)/323 ti/M52B25
BMW/3 Compact (E46)/325 ti/M54B25
BMW/3 coupe (E36)/320 i/M52B20
BMW/3 coupe (E36)/325 i/M50B25
BMW/3 coupe (E36)/325 is/M50B25
BMW/3 coupe (E36)/323 i/M52B25
BMW/3 coupe (E36)/328 i/M52B28
BMW/3 coupe (E36)/M3 3.0/S50B30
BMW/3 coupe (E36)/M3 3.2/S50B32
BMW/3 coupe (E46)/320 Ci/M52B20
BMW/3 coupe (E46)/320 Ci/M54B22
BMW/3 coupe (E46)/323 Ci/M52B25
BMW/3 coupe (E46)/325 Ci/M54B25
BMW/3 coupe (E46)/328 Ci/M52B28
BMW/3 coupe (E46)/330 Ci/M54B30
BMW/3 coupe (E46)/330 xi/M54B30
BMW/3 Convertible (E36)/320 i/M52B20
BMW/3 Convertible (E36)/325 i/M50B25
BMW/3 Convertible (E36)/323 i/M52B25
BMW/3 Convertible (E36)/328 i/M52B28
BMW/3 Convertible (E36)/M3 3.0/S50B30
BMW/3 Convertible (E36)/M3 3.2/S50B32
BMW/3 Convertible (E46)/320 Ci/M54B22
BMW/3 Convertible (E46)/323 Ci/M52B25
BMW/3 Convertible (E46)/325 Ci/M54B25
BMW/3 Convertible (E46)/330 Ci/M54B30
BMW/3 Touring (E36)/320 i/M52B20
BMW/3 Touring (E36)/323 i/M52B25
BMW/3 Touring (E36)/328 i/M52B28
BMW/3 Touring (E46)/320 i/M52B20
BMW/3 Touring (E46)/320 i/M54B22
BMW/3 Touring (E46)/325 xi/M54B25
BMW/3 Touring (E46)/325 i/M54B25
BMW/3 Touring (E46)/328 i/M52B28
BMW/3 Touring (E46)/330 d/M57D30
BMW/3 Touring (E46)/330 xd/M57D30
BMW/3 Touring (E46)/330 xi/M54B30
BMW/3 Touring (E46)/330 i/M54B30
BMW/5 (E34)/525 i 24V/M50B25
BMW/5 (E34)/525 iX 24V/M50B25
BMW/5 (E39)/520 i/M52B20
BMW/5 (E39)/520 i/M54B22
BMW/5 (E39)/523 i/M52B25
BMW/5 (E39)/525 i/M54B25
BMW/5 (E39)/528 i/M52B28
BMW/5 (E39)/530 d/M57D30
BMW/5 (E39)/530 i/M54B30
BMW/5 (E60)/520 i/M54B22
BMW/5 (E60)/525 i/M54B25
BMW/5 (E60)/530 i/M54B30
BMW/5 Touring (E34)/525 i/M50B25
BMW/5 Touring (E34)/525 ix/M50B25
BMW/5 Touring (E39)/520 i/M52B20
BMW/5 Touring (E39)/520 i/M54B22
BMW/5 Touring (E39)/523 i/M52B25
BMW/5 Touring (E39)/525 i/M54B25
BMW/5 Touring (E39)/528 i/M52B28
BMW/5 Touring (E39)/530 d/M57D30
BMW/5 Touring (E39)/530 i/M54B30
BMW/5 Touring (E61)/525 i/M54B25
BMW/7 (E38)/728 i, iL/M52B28
BMW/7 (E38)/730 d/M57D30
BMW/7 (E65, E66, E67)/730 i, Li/M54B30
BMW/X3 (E83)/2.5 i/M54B25
BMW/X3 (E83)/3.0 i xDrive/M54B30
BMW/X5 (E53)/3.0 d/M57D30
BMW/X5 (E53)/3.0 i/M54B30
BMW/Z3 coupe (E36)/2.8 i/M52B28
BMW/Z3 coupe (E36)/3.0 i/M54B30
BMW/Z3 coupe (E36)/M/S50B32
BMW/Z3 Roadster (E36)/2.0 i/M52B20
BMW/Z3 Roadster (E36)/2.2 i/M54B22
BMW/Z3 Roadster (E36)/2.8 i/M52B28
BMW/Z3 Roadster (E36)/3.0 i/M54B30
BMW/Z3 Roadster (E36)/M 3.2/S50B32
BMW/Z4 Roadster (E85)/2.2 i/M54B22
BMW/Z4 Roadster (E85)/2.5 i/M54B25
BMW/Z4 Roadster (E85)/3.0 i/M54B30
BMW/325/DOHC 24v/M50B27
BMW/320, 520, Z3/DOHC 24v/M52B20
BMW/325, 525, Z4/DOHC 24v/M50B25
BMW/325, 525, Z4/DOHC 24v/M52B25
BMW/325, 525, Z4/DOHC 24v/M54B25
BMW/3 (E30)/325 e 2.7/M20B27
BMW/5 (E28)/525 e/M20B27
BMW/325/SOHC 12v/M20B27
BMW/323/SOHC 12v/M20B23
BMW/320, 520, Z3/SOHC 12v/M20B20
BMW/3 (E36)/320 i/M50B20
BMW/3 coupe (E36)/320 i/M50B20
BMW/3 Convertible (E36)/320 i/M50B20
BMW/5 (E34)/520 i 24V/M50B20
BMW/5 Touring (E34)/520 i/M50B20
BMW/320, 520, Z3/DOHC 24v/M50B20
BMW/3 (E30)/325 i X/M20B25
BMW/3 Convertible (E30)/325 i/M20B25
BMW/3 (E30)/325 i/M20B25
BMW/3 Touring (E30)/325 i/M20B25
BMW/3 Touring (E30)/325 i X/M20B25
BMW/5 (E34)/525 i/M20B25
BMW/Z1 Roadster/2.5/M20B25
BMW/325, 525, Z4/SOHC 12v/M20B25

Characteristics

Car Make	BMW
Bearing Type	Main Bearings
Engine Code	S50B30, S50B32, S54B32

Designed to withstand high RPM, temperatures and load, these high strength bearings are manufactured by ACL from 3 layers of hardened steel, copper and nickel. This "trimetal" composition substantially lowers friction, and thus reduces the operating temperatures while providing superior lubrication.