5150 Xtreme Duty Cylinder Sleeve Set, BMW B48

5150 Xtreme Duty Cylinder Sleeves, also known as cylinder liners, are centrifugally cast, ductile iron cylinder sleeves. 

Benefits of Engine Sleeving Include:

- Increased Bore Size: Sleeving your engine gives the opportunity to increase bore size for higher displacement and increased engine capacity, resulting in more power and more torque
- Increased Strength: Iron sleeves are stronger than alusil when subjected to high power, high stress applications, making the cylinder wall much less likely to crack under high performance conditions
- Custom Cylinder Wall Thickness: With the ability to install a thicker cylinder wall, prepare your engine for high performance modifications, including high boost, turbo applications
- Improved Heat Dissipation: By transferring heat more quickly and efficiently, sleeved engines are able to better withstand the higher temperatures associated with high performance applications
- Improved Engine Longevity: By reinforcing critical areas and transferring heat quickly and efficiently, the risk of catastrophic engine failures under high stress applications is greatly reduced
- Compatibility with Performance Modifications: sleeved blocks are better equipped to handle a wide range of high performance modifications such as high compression pistons, forced induction systems, and aggressive cam profiles.

Cylinder Sleeve Installation Guide

Please note that sleeving an engine block is a complex and precise process that requires the expertise of an experienced machine shop or engine builder.

It's crucial to consult with professionals who are knowledgeable about BMW engine blocks and high-performance engine building to ensure that sleeving is the right choice for your specific goals and requirements. If you aren't sure what components you need, feel free to contact our engine build advising team.  

BMW B48 Applications:

1 Series

2016-2019    F20    120i / 125i
2019-2023     F40     118i / 120i / 128ti / 135i / M135i
2024-Present     F70     120 / M135i 

2 Series

2014-2021     F22/F23     218i / 220i / 230i
2014-2017     F45     220 / 225i
2021-Present     G42     218i / 220i / 230i
2021-Present     U06     223i
2020-2024     F44     218i / 220i / 228i / M235i
2025-Present     F74     M235

3 Series

2015-2019     F30/F31/F34     320i / 330i / 330e
2018-Present     G20/G21     318i / 320i / 330i / 330e

4 Series

2016-2019    F32/F33/F36    420i / 430i
2020-Present     G22/G23/G26     420i / 430i / 430e

5 Series

2017-Present     G30/G31     520i / 530i / 530e

6 Series

2017-Present     G32     630i

7 Series

2015-2022     G11/G12     730i / 730Li / 740e / 740Le

X1 Series

2015-2022     F48     sDrive18i / sDrive20i / xDrive20i / 25i / xDrive25i / 28i
2022-Present     U11     sDrive18i / xDrive20i / xDrive28i / M35i

X2 Series

2018-2023     F39     sDrive18i / sDrive20i / xDrive20i / 25i / xDrive25i / 28i / M35i
2023-Present     U10     xDrive28i / M35i

X3 Series

2017-2024     G01     sDrive20i / xDrive20i / xDrive30i / xDrive30e
2025-Present     G45     xDrive20e / xDrive30e

X4 Series

2018-Present     G02     xDrive20i / xDrive30i

X5 Series

2018-Present     G05     xDrive25i / sDrive25i

Z Series

2018-Present     G29     Z4 sDrive20i / sDrive30i

Toyota B48 Applications:

A90 / A91 Supra

2019-Present     J29/DB82/DB22 Supra
2020-Present     GR Supra 2.0  

MINI B48 Applications:

MINI Hatch [F55/F56/F57]

2014-Present     Cooper S
2015-Present     John Cooper Works (JCW)

MINI Clubman [F54]

2015-Present     Cooper S
2016-Present     John Cooper Works (JCW)

MINI Convertible [F57]

2016-Present     Cooper S
2016-Present     John Cooper Works (JCW)