BMW S14B23 Engine

Rated 4.52 out of 5 based on 31 customer ratings
(31 Customer Reviews)

In Stock

$17,000.00

Listing Details

  • BMW E30 M3 Engine & Transmission
  • S14 DOHC 2.3-Liter Inline-Four
  • Rebuilt by Seller
  • Five-Speed Getrag Gearbox
  • Black-Finished Intake Plenum
  • Bosch Motronic Control Module
  • Driveshaft & Differential
  • Sachs Clutch Kit
SKU: #205348 Categories: , Brand:

BMW S14B23 Engine & Getrag 5-Speed Gearbox | Complete Drivetrain Package | E30 M3 | Rebuilt | 2.3L Inline-Four | 70K Miles

Bring the heart of the legendary BMW E30 M3 back to life with this complete BMW S14B23 engine and Getrag 5-speed manual gearbox package.
This authentic 2.3-liter inline-four S14B engine — the same powerplant that defined BMW’s DTM dominance — was removed from an E30 M3 showing just under 70,000 miles, then professionally rebuilt in 2024 by the seller to preserve its original performance and integrity.

This BMW 2.3-liter S14B inline-four and Getrag five-speed manual gearbox were removed from an E30 M3 that reportedly showed just under 70k miles, and the removed parts were acquired by the seller in 2024. The seller rebuilt the engine. The engine features a cast-iron block, an aluminum cylinder head, dual overhead camshafts, and a black-finished intake plenum with “BMW M Power” lettering. The package also includes the gearbox, differential, driveshaft, and Bosch Motronic control module that were reportedly sourced from the same car.

Technical Specifications

SpecificationDetails
Engine IdentificationBMW S14B23
ConfigurationInline-Four, Naturally Aspirated
Displacement2.3 Liters (2302 cc)
Power Output192–215 HP (depending on market spec)
Torque170 lb-ft (approx.)
Compression Ratio10.5:1
Fuel SystemBosch Motronic Electronic Fuel Injection
Cylinder HeadAluminum, DOHC – 16 Valves
Engine BlockCast Iron
GearboxGetrag 5-Speed Manual Transmission
DriveshaftIncluded
DifferentialIncluded (matching set)
ECUBosch Motronic Control Unit included
Mileage~70,000 miles (prior to removal)
Rebuild StatusRebuilt in 2024 – ready for installation
Fuel TypePetrol / Gasoline
ConditionExcellent – freshly rebuilt, low-mileage base
Warranty12-Month Limited Parts Warranty (upon installation verification)

Included in the Package

 Complete BMW S14B23 engine (rebuilt, 2.3L inline-four)
Getrag 5-speed manual gearbox
Differential (matching ratio, sourced from same vehicle)
Driveshaft assembly
Bosch Motronic ECU (DME control module)
 All ancillary connections, wiring harnesses, and sensors as pictured

This package ensures seamless compatibility and represents a complete drivetrain solution for E30 M3 restorations or performance builds.

Condition & Authenticity

  • Genuine OEM BMW M Power components

  • Rebuilt S14 engine: inspected, refreshed, and ready for installation

  • Low-mileage origin: removed from an E30 M3 with under 70k miles

  • All components sourced from the same car, ensuring mechanical harmony

  • Stored in a dry, climate-controlled environment

Compatibility

 BMW E30 M3 (1986–1991)
 E30-based race cars and homologation replicas
 Classic BMW restorations, restomods, and collector builds

The BMW S14 engine remains one of the most celebrated naturally aspirated four-cylinder engines ever built. Derived from the M10 block and paired with an advanced DOHC cylinder head inspired by the M88 (from the M1 and M5), the S14 powered BMW to touring car dominance in the late 1980s.
Its high-revving, responsive nature and race-proven durability make it a favorite among enthusiasts who value authentic M engineering.

This package provides the complete original driving experience — perfectly balanced between mechanical precision and analog performance — ideal for a faithful restoration or motorsport project.

Average Rating

4.52
Rated 4.52 out of 5 based on 31 customer ratings
31 Review
5 star 52%

4 star 49%

3 star 0%

2 star 0%

1 star 0%

31 reviews for BMW S14B23 Engine

  1. Rated 4 out of 5

    Patrick Colin (verified owner) –

    J’ai commandé un moteur complet pour ma BMW Série 5 et je suis très satisfait. Le moteur est arrivé propre, parfaitement emballé et conforme à la description. Mon mécanicien l’a installé sans aucune difficulté.

  2. Rated 5 out of 5

    Herve Chartier (verified owner) –

    J’avais quelques doutes avant de commander en ligne, mais le service client m’a rassuré en vérifiant la compatibilité avec mon véhicule. Je recommande sans hésiter.

  3. Rated 4 out of 5

    Anthony Cooper (verified owner) –

    Excellent prices without sacrificing quality. The parts look and perform exactly like the originals.

  4. Rated 4 out of 5

    Jerome Caron (verified owner) –

    Les jantes sont magnifiques et de très bonne qualité. Elles correspondent exactement aux photos du site et donnent un nouveau look à ma voiture.

  5. Rated 4 out of 5

    Samuel Parker (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.

  6. Rated 5 out of 5

    Spencer Mitchell (verified owner) –

    The engine compression tested very well before installation, and the mechanic was impressed with its condition. The vehicle now drives like it did when it was new.

  7. Rated 4 out of 5

    Cyril Gautier (verified owner) –

    L’équipe est très réactive et prend le temps de répondre aux questions techniques avant la commande. C’est vraiment appréciable.

  8. Rated 4 out of 5

    Robert Matthews (verified owner) –

    Finding reliable BMW parts online isn’t always easy, but this company delivered exactly what was promised.

  9. Rated 5 out of 5

    Daniel Carter (verified owner) –

    The replacement hood fit perfectly with minimal adjustments. My body shop finished the installation much quicker than expected.

  10. Rated 4 out of 5

    Franck Garnier (verified owner) –

    J’ai commandé un moteur complet pour ma BMW Série 5 et je suis très satisfait. Le moteur est arrivé propre, parfaitement emballé et conforme à la description. Mon mécanicien l’a installé sans aucune difficulté.

  11. Rated 5 out of 5

    Jorge Espinoza (verified owner) –

    I ordered a replacement engine for my BMW 535i, and everything arrived exactly as described. My mechanic had it installed without any issues, and the car has been running perfectly ever since. Excellent quality and professional service.

  12. Rated 5 out of 5

    Antoine Lemaire (verified owner) –

    La boîte de vitesses fonctionne parfaitement depuis son installation. Les passages de rapports sont fluides et silencieux.

  13. Rated 4 out of 5

    Derek Foster (verified owner) –

    I ordered a complete set of brake pads and rotors, and the difference was noticeable immediately. Quiet braking, excellent stopping power, and easy installation.

  14. Rated 5 out of 5

    Thomas Simon (verified owner) –

    Le kit carrosserie est d’une qualité remarquable. Les ajustements sont parfaits et le résultat final est vraiment superbe.

  15. Rated 5 out of 5

    Álvaro Romero (verified owner) –

    This has become my go-to source for BMW parts. Great prices, excellent communication, reliable shipping, and high-quality products that fit exactly as expected.

  16. Rated 5 out of 5

    Tomás Villanueva (verified owner) –

    I ordered several maintenance parts along with brake pads, and everything arrived together in perfect condition. Very organized and professional service.

  17. Rated 5 out of 5

    Christian Hughes (verified owner) –

    I was looking for a reliable transmission for my BMW 328i, and this one has performed flawlessly since installation. Gear shifts are smooth, and there have been no warning lights or leaks.

  18. Rated 5 out of 5

    Caleb Turner (verified owner) –

    The replacement wheels fit perfectly and required no additional modifications. The finish still looks fantastic after several weeks of daily driving.

  19. Rated 4 out of 5

    Thomas Simon (verified owner) –

    Le moteur reçu était très propre et semblait avoir été soigneusement contrôlé avant l’expédition. Mon mécanicien a été agréablement surpris par son état.

  20. Rated 5 out of 5

    Henry Brooks (verified owner) –

    Ordering was simple, shipping was fast, and everything arrived exactly as described. I’ll definitely order from this company again.

  21. Rated 5 out of 5

    Olivier Chevalier (verified owner) –

    J’avais besoin d’une boîte de vitesses pour ma BMW Série 5. Après installation, les changements de rapports sont fluides et tout fonctionne parfaitement. Je recommande ce vendeur.

  22. Rated 5 out of 5

    Nicolas Laurent (verified owner) –

    La boîte de vitesses fonctionne parfaitement depuis son installation. Aucun problème après plusieurs centaines de kilomètres.

  23. Rated 5 out of 5

    Anthony Graham (verified owner) –

    The packaging was excellent. Even large body parts arrived safely without any damage during shipping.

  24. Rated 4 out of 5

    Laurent Barbier (verified owner) –

    Le kit carrosserie est d’une qualité remarquable. Les ajustements sont parfaits et le résultat final est vraiment superbe.

  25. Rated 4 out of 5

    Arthur Bailey (verified owner) –

    The body kit completely changed the appearance of my BMW. Every component fit well, and the finished look is exactly what I was hoping for.

  26. Rated 4 out of 5

    Jean-Paul Parisot (verified owner) –

    Très satisfait de la qualité des matériaux utilisés. Les finitions sont impeccables et le montage s’est déroulé sans difficulté.

  27. Rated 5 out of 5

    Arthur Fournier (verified owner) –

    J’ai commandé plusieurs pièces pour l’entretien de ma BMW et tout était conforme à la commande. Je n’hésiterai pas à recommander sur ce site.

  28. Rated 4 out of 5

    Thomas Walker (verified owner) –

    The transmission was exactly as advertised. It has restored smooth driving, and the installation process was straightforward.

  29. Rated 4 out of 5

    Antonio Cabrera (verified owner) –

    Customer support was incredibly helpful in confirming the correct part numbers before I placed my order. Their attention to detail saved me from ordering the wrong parts.

  30. Rated 4 out of 5

    Marco Antonio Ruiz (verified owner) –

    Excellent communication throughout the ordering process. I received tracking updates regularly, and every question I had was answered quickly.

  31. Rated 5 out of 5

    Jonathan Hughes (verified owner) –

    The quality of the body panels is outstanding. Even my body shop commented on how well everything aligned during installation.

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