BMW N55B30A 3.0L Petrol Complete Engine

Genuine OEM BMW N55B30A 3.0L turbocharged petrol complete engine, a 6-cylinder inline engine used across BMW’s performance-oriented 35i applications.

Engine code: N55B30A
Displacement: 2,979 cc / 3.0L
Configuration: Inline 6-cylinder
Turbocharger: Single twin-scroll turbo
Fuel: Petrol / direct injection
Common output: 225 kW / 306 PS
Torque: 400 Nm
Part type: Complete engine / engine assembly
Condition: Used / Reconditioned — specify

The 306-PS N55 specification produces 225 kW (306 PS) and 400 Nm. BMW’s N55 family was also produced in higher-output versions, so the exact suffix and vehicle application should be checked before purchase.

Applications

The N55 family was used in numerous BMW models, including:

• BMW 135i E82/E88
• BMW 335i E90/E91/E92/E93
• BMW 335i F30/F31
• BMW 435i F32/F33/F36
• BMW 535i F10/F11
• BMW 640i F06/F12/F13
• BMW 740i F01/F02
• BMW X3 xDrive35i F25
• BMW X5 xDrive35i E70/F15
• BMW X6 xDrive35i E71/F16

Exact engine variants and power outputs differ between models.

Engine Specifications

• 2,979 cc
• 6-cylinder inline
• DOHC, 24 valves
• Valvetronic variable valve lift
• Direct petrol injection
• Twin-scroll turbocharger
• 306 PS / 225 kW
• 400 Nm
• Rear-wheel drive or xDrive applications depending on vehicle.

Important Compatibility

N55B30A/N55B30 is a family designation and does not mean every N55 engine is directly interchangeable. The N55 was offered from approximately 306 to 370 PS, with differences in turbocharging, ECU calibration, accessories and emissions equipment.

Before ordering, verify:

• VIN
• Exact engine code and BMW engine number
• Vehicle model/year
• 306/320/326/370-PS specification
• RWD vs. xDrive
• ECU/DME
• Turbocharger
• Wiring and sensors
• Oil pan and engine mounts
• Ancillary equipment

Suggested listing title:
BMW N55B30A 3.0L Petrol Complete Engine 306PS 225kW 400Nm TwinPower Turbo 135i 335i 435i 535i X3 X5