BMW S54B32 3.2L 343HP Engine for Sale | M3 E46 Performance Engine | OEM S54

The legendary BMW S54B32 is a high-revving 3.2-liter inline-6 engine known for delivering pure ///M performance. Producing 343 horsepower, the S54 remains one of BMW M’s most iconic naturally aspirated engines — praised for its razor-sharp throttle response, motorsport engineering, and exceptional durability.

Originally fitted in the BMW M3 E46 and select Z4M models, the S54B32 features individual throttle bodies, double VANOS, a forged crankshaft, and reinforced internals built for high-RPM performance. Whether you’re restoring an M3, replacing a worn engine, or building a track-focused project, this S54 delivers top-tier performance and reliability.

This unit is fully tested, clean, and ready for installation, offering OEM-grade power and smoothness.

Specifications

• Engine Code: S54B32

• Displacement: 3.2L (3246cc)

• Configuration: Inline-6, naturally aspirated

• Power Output: 343 HP @ high RPM

• Torque: ~365 Nm

• Technology: Double VANOS, individual throttle bodies

• Construction: Forged crankshaft, aluminum head

• Condition: Clean / tested

• Compatible Models:

  • BMW M3 E46

  • BMW Z4M Coupe / Roadster

Included

• Complete S54 Engine

• Throttle Body Assembly

• Intake Plenum

• Injectors

• Coil Packs

• Sensors & wiring connections

• Optional: ECU & gearbox available on request

Why Choose the S54 Engine

• One of BMW’s greatest naturally aspirated engines

• High-revving motorsport character

• Strong 343 HP performance

• Ideal for M3 restorations and track builds

• Durable, proven, iconic M-Power engineering