BMW S54B32 Engine & 6-Speed Manual Gearbox | 3.2L Inline-Six | Z4 M Roadster (2006) | 9,000 Miles
Offered for sale is a BMW S54B32 3.2-liter inline-six engine paired with its ZF 6-speed manual gearbox, removed from a 2006 BMW Z4 M Roadster that was declared a total loss due to chassis damage. This powertrain, showing only ~9,000 miles, represents one of the cleanest and lowest-mileage S54 packages available — ideal for restoration projects, performance conversions, or collector use.
The S54 is widely recognized as BMW M’s final naturally aspirated inline-six masterpiece, delivering a thrilling combination of race-bred precision, high-revving performance, and bulletproof engineering.
Technical Specifications
| Specification | Details |
|---|---|
| Engine Code | S54B32 |
| Displacement | 3,246 cc (3.2 Liters) |
| Configuration | Inline-6, Naturally Aspirated |
| Bore x Stroke | 87 mm x 91 mm |
| Compression Ratio | 11.5 : 1 |
| Power Output (Factory) | 330 HP (246 kW) @ 7,900 rpm |
| Torque (Factory) | 262 lb-ft (355 Nm) @ 4,900 rpm |
| Block Material | Cast-Iron |
| Cylinder Head | Aluminum Alloy |
| Valvetrain | DOHC, 24-Valve |
| Induction | Six Individual Throttle Bodies |
| Variable Valve Timing | Double VANOS (Intake & Exhaust) |
| Fuel System | Sequential Multi-Point Injection (Siemens MS S70 ECU) |
| Transmission | ZF 6-Speed Manual Gearbox |
| Drivetrain | Rear-Wheel Drive |
| Mileage | ~9,000 Miles (Verified) |
Included Components
BMW S54B32 Engine Assembly
• Complete long block (cast-iron block, alloy head, crankshaft, pistons, cams)
• Dual overhead camshafts and double VANOS system intact
• Six individual throttle bodies with linkage
ZF 6-Speed Manual Gearbox
• Matching transmission from same donor car
• Includes shifter assembly and linkage
Electronic & Control Units
• Siemens ECU (Engine Control Module)
• Complete engine wiring harness
Exhaust & Ancillary Components
• Pair of OEM exhaust manifolds
• Ancillary systems including alternator, starter, sensors, and brackets
Miscellaneous Equipment
• Air intake and mounting hardware
• OEM clutch assembly and flywheel (upon request, if available)
Condition Notes
Removed from a 2006 BMW Z4 M Roadster (E85)
Vehicle had ~9,000 verified miles before dismantling
Engine turns freely with no visible internal damage
Stored properly in dry, climate-controlled conditions since removal
Includes all factory harnesses, control units, and sensors for plug-and-play potential
Ideal for retrofit into BMW E30, E36, E46, or Z3 chassis, or as a replacement for an existing S54-powered car
Compatibility
BMW Z4 M Roadster / Coupé (E85 / E86)
BMW M3 (E46)
Engine swap candidates: E30, E36, E39, E9x track builds
Suitable for OEM restoration or custom performance conversions
Collector Significance
The S54B32 remains one of the most celebrated naturally aspirated inline-six engines ever produced. Derived from BMW’s S50 and S52 architecture, it represents the pinnacle of the M Division’s pre-turbo engineering — featuring an 8,000 rpm redline, precision-balanced rotating assembly, and motorsport-level throttle response.
Its rarity in such low-mileage, complete condition — paired with its original ZF 6-speed manual gearbox and factory electronics — makes this a top-tier acquisition for collectors or high-end restoration shops.
BMW S54B32 Engine & ZF 6-Speed Manual Gearbox, sourced from a 2006 Z4 M Roadster showing only 9,000 miles. This is a complete plug-and-play performance powertrain, including the ECU, wiring harness, exhaust manifolds, and all major ancillaries.
Perfect for OEM replacements, high-performance E30/E36/E46 conversions, or collector preservation — an exceptional example of BMW M engineering at its finest.
Dominique Schmitt (verified owner) –
Les délais de livraison vers la France ont été respectés. Les pièces étaient parfaitement protégées pendant le transport.
Samantha Richardson (verified owner) –
Very satisfied with my purchase. The transmission performs smoothly, and the installation process was straightforward thanks to the accurate description.
Alejandro Morales (verified owner) –
The quality of the replacement fenders and bumper exceeded my expectations. The body shop commented on how well everything fit compared to other aftermarket parts.
Sergio Castaño (verified owner) –
I bought a complete set of alloy wheels, and they completely changed the appearance of my BMW. Excellent quality, perfect balance, and they fit without any modifications.
Arthur Bailey (verified owner) –
The replacement fender was an exact match for my original one. My body shop had no trouble fitting it, and the final result looks factory installed.
Paul Atkinson (verified owner) –
The brake components fit perfectly and provide excellent stopping power. Everything feels solid and reliable.
Sebastien Lefevre (verified owner) –
Très satisfait de mon achat. Le pare-chocs avant s’adapte parfaitement et la qualité de fabrication est excellente. La livraison en France a été rapide et le colis était très bien protégé.
Mathieu Roux (verified owner) –
Le pare-chocs arrière est identique à l’origine. Mon garage a pu le monter très facilement grâce à un ajustement parfait.
Stephane Picard (verified owner) –
Les photos du site correspondent exactement aux produits reçus. Aucune mauvaise surprise à la livraison.
Antonio Cabrera (verified owner) –
The replacement transmission was exactly as described. After installation, the car shifts smoothly, and there haven’t been any issues at all.
Jaime Aguilar (verified owner) –
The replacement engine has been running flawlessly for several weeks now. Fuel economy is good, performance is strong, and there are no warning lights.
Arthur Bailey (verified owner) –
I appreciated how the support team confirmed compatibility before shipping. Their professionalism gave me confidence that I was ordering the correct parts.
Philippe Lemaire (verified owner) –
Le service client m’a aidé à identifier la bonne référence grâce au numéro VIN. Cela m’a évité une erreur de commande.
Mark Spencer (verified owner) –
I ordered both front and rear bumpers, and the fitment was excellent. The quality of the materials is very impressive.
Charlotte Hughes (verified owner) –
The front fenders I purchased fit perfectly without any modifications. The quality of the metal and the finish were excellent, making the paint process much easier.
Valentin Perrier (verified owner) –
Après plusieurs centaines de kilomètres, le moteur fonctionne toujours parfaitement. Je suis entièrement satisfait de cet achat.
Óscar Cifuentes (verified owner) –
The brake pads were exactly what I needed. Installation was quick, braking performance feels excellent, and there has been no excessive brake dust or noise.
Serge Brun (verified owner) –
Je recommande vivement cette boutique à tous les passionnés de BMW. Le professionnalisme est au rendez-vous.
Graham Lawson (verified owner) –
The replacement hood and fender fit perfectly with very little adjustment required. The body shop finished the installation much faster than expected.
Sean Mitchell (verified owner) –
The replacement engine looked exactly like the photos on the website. After installation, it started immediately and has been running perfectly ever since.
Jerome Caron (verified owner) –
Le moteur est arrivé dans un excellent état. Après plusieurs semaines d’utilisation, aucun souci à signaler. Je suis très satisfait.
Sean Fletcher (verified owner) –
The replacement hood and fender fit perfectly with very little adjustment required. The body shop finished the installation much faster than expected.
Jacob Mitchell (verified owner) –
I purchased several suspension and brake components together, and every single part matched perfectly. It made the repair process much easier.
Olivier Delmas (verified owner) –
J’apprécie particulièrement le sérieux de cette entreprise. Chaque étape de la commande était clairement expliquée.
Emma Lawson (verified owner) –
The brake components were high quality and fit exactly like the originals. Installation was simple, and braking performance has been excellent.
Derek Foster (verified owner) –
The engine has now been installed for several months and continues to perform flawlessly. No oil leaks, no unusual noises, and excellent performance.
Jerome Caron (verified owner) –
Mon garagiste m’a confirmé que toutes les pièces correspondaient aux spécifications d’origine. Cela a considérablement facilité le montage.
Adrien Blanc (verified owner) –
Les ailes que j’ai commandées sont arrivées en parfait état. Mon carrossier les a installées sans aucune modification. Excellent rapport qualité-prix.
Fabien Hubert (verified owner) –
Commande reçue dans les délais annoncés. Emballage très soigné et pièces conformes. Une excellente expérience.
Victor Girard (verified owner) –
Le pare-chocs arrière est identique à l’origine. Mon garage a pu le monter très facilement grâce à un ajustement parfait.
Connor Sullivan (verified owner) –
The replacement engine looked exactly like the photos on the website. After installation, it started immediately and has been running perfectly ever since.