BMW S55B30 Engine for Sale – 3.0L Twin-Turbo BMW M Performance Engine

Looking for a BMW S55B30 engine for sale? The BMW S55B30 is a high-performance 3.0-litre twin-turbocharged petrol engine developed by BMW M GmbH for its M-series performance vehicles. Known for its strong power delivery, inline-six configuration and advanced turbocharging technology, this engine is a sought-after replacement option for BMW M3, M4 and M2 Competition owners.

Whether you need a replacement engine for a damaged powertrain, are rebuilding a BMW M vehicle, or are sourcing an engine for a performance project, the S55B30 offers a factory-developed performance platform with substantial torque and high-revving capability.

Before purchasing a BMW S55B30 engine, it is important to confirm the exact engine designation, vehicle generation, production year and electronic configuration to ensure compatibility with your vehicle.

BMW S55B30 Engine Specifications

The BMW S55B30 belongs to BMW's S-series of performance engines. It is based on the N55 engine architecture but incorporates significant M-specific engineering changes, including a reinforced crankcase design, revised internal components and a twin-turbocharging system.

Key technical specifications:

• Engine code: BMW S55B30 / S55B30T0 (variant dependent)

• Engine configuration: Inline-six (I6)

• Engine displacement: 2,979 cc (3.0 litres)

• Fuel type: Petrol / Gasoline

• Aspiration / induction: Twin-turbocharged

• Valvetrain: DOHC, 24 valves

• Bore: 84.0 mm

• Stroke: 89.6 mm

• Compression ratio: 10.2:1

• Standard power output: Approximately 425 hp (431 PS)

• Standard maximum torque: 550 Nm (406 lb-ft)

• Engine management: BMW digital engine electronics

• Production application: BMW M performance vehicles

Power and torque figures vary depending on the specific S55 variant, vehicle model, market and factory performance package.

Compatibility / Fitment Notes

The BMW S55B30 engine was designed for selected BMW M performance models. Its primary applications include the following vehicle generations:

• BMW M3 F80: 2014–2018. The S55B30T0 powers the F80-generation M3 sedan.

• BMW M4 F82 Coupe: 2014–2020. The S55 engine is used across standard and higher-performance M4 configurations.

• BMW M4 F83 Convertible: 2014–2020. Uses the S55 engine in the F83-generation convertible.

• BMW M2 Competition F87: 2018–2021. Uses an S55 engine variant configured for the M2 Competition.

• BMW M2 CS F87: 2020–2021. Features a higher-output S55 configuration.

Important fitment considerations:

Although these vehicles share the S55 engine family, not every S55 engine is a direct plug-and-play replacement for every application.

Before ordering, verify:

• Exact engine code and variant designation.

• Vehicle VIN and production date.

• Engine mounting and accessory configurations.

• Oil pan and sump compatibility.

• Turbocharger and intake arrangements.

• Wiring harness and engine control unit (ECU).

• Fuel system and sensor compatibility.

• Transmission and drivetrain configuration.

• Emissions equipment and market-specific requirements.

A complete engine assembly and a bare engine may also require different installation components. Always compare the supplied engine configuration with the original unit.

Engine Configuration

The BMW S55B30 features a straight-six engine configuration with six cylinders arranged in a single row. It uses a dual overhead camshaft (DOHC) cylinder head with four valves per cylinder, giving it a total of 24 valves.

BMW developed the S55 specifically for high-performance applications. Its engineering includes a closed-deck crankcase design, revised crankshaft components, M-specific pistons and a cooling and lubrication system designed to support demanding operating conditions.

The inline-six layout provides balanced engine operation, while the twin-turbocharging arrangement supports strong acceleration and responsive power delivery.

Engine Displacement

The BMW S55B30 has a displacement of 2,979 cc, commonly marketed as a 3.0-litre engine.

Its 84.0 mm bore and 89.6 mm stroke contribute to its performance characteristics. This displacement, combined with BMW M's turbocharging and engine management technologies, enables the S55 to deliver substantial power and torque across a broad engine-speed range.

When shopping for a BMW S55B30 replacement engine, ensure that the advertised unit has the correct engine designation rather than relying on the 3.0-litre displacement alone.

Fuel Type

The BMW S55B30 is designed to operate on petrol (gasoline). It uses a high-pressure direct fuel injection system to deliver fuel into the combustion chambers.

Fuel requirements can vary according to the vehicle's original market specification. Buyers should check the appropriate fuel grade for their vehicle and engine calibration before installation and operation.

Aspiration / Induction

One of the defining characteristics of the BMW S55B30 is its twin-turbocharged induction system.

The engine uses two mono-scroll turbochargers to force additional air into the engine, supporting higher power output than a naturally aspirated engine of comparable displacement.

Its M TwinPower Turbo technology works alongside the engine's intercooling, intake and electronic management systems to regulate performance under different operating conditions.

When purchasing a replacement S55B30, confirm whether the turbochargers, intercooler-related components, intake manifold and associated hardware are included. Not every engine listing includes a complete turbocharger assembly.

Power Output

The standard BMW S55B30T0 configuration used in the F80 M3 and F82 M4 produces approximately 425 hp (431 PS).

However, BMW offered several factory performance configurations:

• Standard M3/M4: Approximately 425 hp (431 PS).

• M3/M4 Competition: Approximately 444 hp (450 PS).

• M3/M4 CS: Approximately 454 hp (460 PS).

• M4 GTS: Approximately 493 hp (500 PS).

The M2 Competition and M2 CS also use S55-family engines with their own factory output specifications.

These differences are important when sourcing a replacement engine. A higher-output version should not automatically be assumed to be a direct replacement for a standard configuration without checking its hardware, electronics and vehicle compatibility.

Torque

The standard S55B30T0 engine produces approximately 550 Nm (406 lb-ft) of maximum torque between 1,850 and 5,500 rpm.

This broad torque delivery contributes to the strong acceleration associated with BMW's F80 M3 and F82 M4 models.

Higher-performance factory versions can deliver different torque figures depending on their configuration. Confirm the specifications of the exact engine variant being purchased.

Years / Generation

The BMW S55 engine was introduced in 2014 with the F80 M3 and F82 M4 generation.

Its main vehicle applications include:

Production and registration dates can differ between markets. Always verify the original engine code using the vehicle VIN and engine identification information.

Buying a BMW S55B30 Replacement Engine

When searching for a BMW S55B30 engine for sale, selecting the correct engine specification is just as important as finding a competitive price.

Consider the following before completing your purchase:

1. Engine condition: Establish whether the engine is used, tested, rebuilt or remanufactured. Request supporting documentation where available.

2. Mileage: For a used engine, ask for the recorded mileage and its source.

3. Included components: Confirm whether the engine comes with turbochargers, injectors, high-pressure fuel pumps, alternator, starter motor, intake components and other accessories.

4. Engine identification: Request the engine code and identification photographs.

5. Inspection information: Ask about compression or leak-down testing, oil condition and any documented inspection results.

6. Warranty: Confirm the available warranty terms, coverage and installation requirements.

7. Shipping: Check packaging, delivery arrangements, shipping costs and international export requirements.

These checks help reduce the risk of ordering an incompatible engine or receiving an assembly that does not include the components required for installation.

Order a BMW S55B30 Engine Today

If you are searching for a BMW S55B30 engine for sale, finding the correct engine specification is the first step towards a successful replacement.

The S55B30 is an important part of BMW M's modern performance-engine lineup, powering several F-series M vehicles with its 3.0-litre inline-six configuration and twin-turbocharged induction system.

Contact our sales team with your BMW model, production year, VIN and existing engine code to request availability, pricing, engine condition details and shipping information.

Whether you need an S55B30 engine for an F80 M3, F82 M4, F83 M4 Convertible or F87 M2 Competition, we can help you identify the appropriate engine specification for your vehicle before ordering.

The BMW S55B30 engine was designed for selected BMW M performance models. Its primary applications include the following vehicle generations:

• BMW M3 F80: 2014–2018. The S55B30T0 powers the F80-generation M3 sedan.

• BMW M4 F82 Coupe: 2014–2020. The S55 engine is used across standard and higher-performance M4 configurations.

• BMW M4 F83 Convertible: 2014–2020. Uses the S55 engine in the F83-generation convertible.

• BMW M2 Competition F87: 2018–2021. Uses an S55 engine variant configured for the M2 Competition.

• BMW M2 CS F87: 2020–2021. Features a higher-output S55 configuration.

The BMW S55B30 belongs to BMW's S-series of performance engines. It is based on the N55 engine architecture but incorporates significant M-specific engineering changes, including a reinforced crankcase design, revised internal components and a twin-turbocharging system.

Key technical specifications:

• Engine code: BMW S55B30 / S55B30T0 (variant dependent)

• Engine configuration: Inline-six (I6)

• Engine displacement: 2,979 cc (3.0 litres)

• Fuel type: Petrol / Gasoline

• Aspiration / induction: Twin-turbocharged

• Valvetrain: DOHC, 24 valves

• Bore: 84.0 mm

• Stroke: 89.6 mm

• Compression ratio: 10.2:1

• Standard power output: Approximately 425 hp (431 PS)

• Standard maximum torque: 550 Nm (406 lb-ft)

• Engine management: BMW digital engine electronics

• Production application: BMW M performance vehicles

The BMW S55B30 engine was designed for selected BMW M performance models. Its primary applications include the following vehicle generations:

• BMW M3 F80: 2014–2018. The S55B30T0 powers the F80-generation M3 sedan.

• BMW M4 F82 Coupe: 2014–2020. The S55 engine is used across standard and higher-performance M4 configurations.

• BMW M4 F83 Convertible: 2014–2020. Uses the S55 engine in the F83-generation convertible.

• BMW M2 Competition F87: 2018–2021. Uses an S55 engine variant configured for the M2 Competition.

• BMW M2 CS F87: 2020–2021. Features a higher-output S55 configuration.

Important fitment considerations:

Although these vehicles share the S55 engine family, not every S55 engine is a direct plug-and-play replacement for every application.

Before ordering, verify:

• Exact engine code and variant designation.

• Vehicle VIN and production date.

• Engine mounting and accessory configurations.

• Oil pan and sump compatibility.

• Turbocharger and intake arrangements.

• Wiring harness and engine control unit (ECU).

• Fuel system and sensor compatibility.

• Transmission and drivetrain configuration.

• Emissions equipment and market-specific requirements.

A complete engine assembly and a bare engine may also require different installation components. Always compare the supplied engine configuration with the original unit.