Before You Order
Please ensure the part matches the photos and your vehicle before purchasing. OEM numbers are for reference only—this is an aftermarket part, not made or approved by the original vehicle manufacturer.
  • BMW 1 Series, 2 Series, 3 Series, 5 Series, X3, X4, Mini Cooper S/JCW 2.0T B46 / B48 Engine Crankshaft (11218639541). Forged steel. Fast South Africa delivery.
  • BMW 1 Series, 2 Series, 3 Series, 5 Series, X3, X4, Mini Cooper S/JCW 2.0T B46 / B48 Engine Crankshaft (11218639541). Forged steel. Fast South Africa delivery.
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BMW 1, 2, 3, 5 Series, X3, X4, Mini (N46 / B48) - Engine Crankshaft

BMW 1, 2, 3, 5 Series, X3, X4, Mini (N46 / B48) - Engine Crankshaft

R 5,499.99
R 5,499.99
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Description

This heavy-duty replacement engine crankshaft is manufactured to precision OE specifications to maintain bottom-end rotational balance and structural integrity in BMW and MINI 2.0L 4-cylinder turbocharged engines. Engineered from high-strength forged steel, this shaft is designed to handle elevated combustion pressures, heavy thermal stress, and high-torque demands. It acts as a direct replacement for scored, bent, or fractured original crankshafts resulting from severe oil contamination, spun main/rod bearings, or bottom-end metal fatigue. Installing this crankshaft restores consistent oil pressure, resolves severe engine knock, and prevents major internal block damage.

Compatible Vehicles

BMW 1 Series (F20 / F21) 120i, 125i (2015–2019)

BMW 2 Series (F22 / F23) 220i, 230i / xDrive (2016–2021)

BMW 3 Series (F30 / F31 / F34 GT / G20) 320i, 330i, 330e / xDrive (2015–2021)

BMW 4 Series (F32 / F33 / F36 Gran Coupe) 420i, 430i / xDrive (2016–2021)

BMW 5 Series (G30 / G31) 520i, 530i, 530e / xDrive (2016–2021)

BMW X3 (G01) sDrive20i, xDrive30i (2017–2021)

BMW X4 (G02) xDrive30i (2018–2021)

MINI Hatch / Convertible / Clubman / Countryman (F54 / F55 / F56 / F57 / F60) Cooper S, JCW 2.0 Turbo (2014–2021)

Application Note: Specifically engineered for BMW & MINI 2.0-liter 4-cylinder TwinPower Turbo petrol engines (B48B20, B48A20, B46B20 engine codes). (Note: Excludes 3.0L B58 6-cylinder models). Important Fitment Note: Clean all internal engine oil passages and inspect the oil pump thoroughly before assembly. Main bearing shells, connecting rod bearings, and front/rear crankshaft oil seals must be replaced during installation. Always adhere to factory torque-to-yield bolt specifications during rebuild.

Specifications

Part Type: Engine Crankshaft Assembly

Position: Bottom-End Engine Cylinder Block Internal

OEM Part Number: 11 21 8 639 541 (11218639541)

Cross-Reference OEM Nos: 11218639541 / 11218678989 / 8639541

Alternative Part Numbers: NF0470 / 539873

Engine Codes Supported: B48 B20 A / B48 B20 B / B48 A20 A / B46 B20 A

Material Composition: Precision Machined Forged High-Tensile Alloy Steel

Stroke: 94.6 mm

Main Journal Diameter: 50.0 mm

Rod Journal Diameter: 50.0 mm

Assembly Inclusions: Primary Engine Crankshaft Assembly (Main/rod bearing shells and alignment bolts available separately)

Fast and reliable delivery available across South Africa.
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