BMW M54B25 2.5L Engine – Complete 141kW (192 HP) Long Block with Add-On Parts
Complete, Well-Maintained M54B25 Engine for Direct Replacement Across Multiple BMW Platforms.
This listing is for a complete, original BMW M54B25 2.5L inline-6 petrol engine, producing 141 kW (192 horsepower). With a documented mileage of 224,000 km (~139,190 miles), this unit is offered with key add-on parts and described as being in very good condition for its mileage. It serves as a comprehensive, direct-fit solution for replacing a worn or failed engine in a wide array of BMW E-chassis vehicles, leveraging the renowned reliability and smooth performance of the M54 engine family.
Product Overview & Core Specifications
Engine Code: M54B25 (256S5)
Displacement: 2.5L (2494cc) Inline-6 Petrol
Power Output: 141 kW / 192 HP
Technology: Double-VANOS (Variable Valve Timing)
Mileage: ~224,000 km (~139,190 mi)
Condition: Used, Complete with Add-On Parts – Reported Very Good
Management: Bosch ME7 Engine Management
Primary Vehicle Compatibility
This engine is a direct bolt-in replacement for the following models originally equipped with the M54B25 engine:
BMW E39 525i / 525xi (2001-2003)
BMW E46 325i / 325Ci / 325xi (2001-2005)
BMW E60/E61 525i (Early models, 2004-2005)
BMW E83 X3 2.5i
BMW E85 Z4 2.5i
Note: Always verify exact model year and sub-model compatibility using your VIN.
What’s Included – Engine & Add-On Parts
This engine is sold as a more complete package than a bare long block. Typically includes:
Complete M54B25 Long Block: Engine block, cylinder head with double-VANOS, and all internal components.
Key Add-On Parts (As Pictured/Listed): May include the intake manifold with DISA valve, throttle body, valve cover, oil filter housing, possibly the engine wiring harness and ECU (DME), and various sensors/brackets.
Crucial: Confirm the exact list of included “add-on parts” with the seller via photograph and written list.
Condition Assessment & Buyer Advisory
Verification of Condition and Components is Paramount.
Reported Condition: Described as “very good” for its mileage, suggesting no known major faults (e.g., no rod knock, severe overheating history). However, at 224k km, expect seals and wear items to need attention.
Pre-Purchase Due Diligence is a Must:
Request Documentation: Ask for any available service history or compression test data.
Demand Detailed Photos: High-resolution images of the engine from all angles, focusing on the VANOS unit, oil filter housing (common leak point), and the underside.
Verify Add-Ons: Get a written, itemized list of every included component beyond the long block.
Professional Installation Recommended: Essential to replace common failure points during installation: VANOS seals, oil filter housing gasket, valve cover gasket, and coolant pipes.
Why Choose This Engine?
✔ Direct Fitment: Simplifies replacement for the listed chassis.
✔ Proven Durability: The M54 is known for longevity when properly maintained.
✔ Complete Package: Inclusion of add-on parts can reduce sourcing time and cost.
Christian Krause (verified owner) –
Ich habe einen Mercedes Motor bestellt und die Lieferung war schneller als erwartet. Nach der Installation läuft der Wagen ruhig und zuverlässig.
Edouard Colin (verified owner) –
Les jantes sont encore plus belles en vrai que sur les photos. Elles sont parfaitement équilibrées et la finition est irréprochable.
Dominique Leduc (verified owner) –
J’ai acheté plusieurs pièces pour remettre en état ma BMW après un accident. Tout s’est parfaitement monté et mon carrossier était impressionné par la qualité.
Carlos Alberto Vega (verified owner) –
La atención al cliente fue excelente desde el primer contacto. Me ayudaron a verificar referencias y compatibilidad antes de realizar la compra.
Benjamin Schulz (verified owner) –
Der Kotflügel für meinen BMW wurde schnell geliefert und passt perfekt. Meine Werkstatt war von der Qualität positiv überrascht.
Matthew Lewis (verified owner) –
The Ferrari rear bumper arrived without a single scratch. Excellent packaging and impressive attention to detail.
Harry Mitchell (verified owner) –
I purchased a transmission for my 528i, and it’s been performing perfectly since installation. Gear changes are smooth, and the vehicle drives better than it has in a long time.
Manuel Gallego (verified owner) –
Shipping was faster than expected, and the packaging was excellent. Even the larger body panels arrived without any damage.
Anthony Cooper (verified owner) –
The quality of the wheels exceeded my expectations. They balanced perfectly, look amazing on the car, and arrived without a single scratch.
Dylan Roberts (verified owner) –
After comparing several suppliers, I decided to order my Audi transmission from aftermarketspareparts.com. Shipping was fast, the packaging was secure, and the transmission has been working flawlessly.
Alfie Morgan (verified owner) –
The quality of the body panels is outstanding. Even my body shop commented on how well everything aligned during installation.
Florian Schröder (verified owner) –
Ich habe einen Audi Stoßfänger bestellt und war überrascht, wie genau die Passform war. Die Lackierung und Montage waren problemlos.
Christophe Lemoine (verified owner) –
J’ai commandé un moteur de remplacement pour ma BMW Série 3 et tout s’est déroulé parfaitement. Le moteur est arrivé bien emballé, conforme à la description, et mon garagiste l’a installé sans aucune difficulté. La voiture roule comme au premier jour.
Francisco Ortega (verified owner) –
Excelente experiencia de principio a fin. Motores, transmisiones, llantas, kits de carrocería, frenos y accesorios para vehículos de lujo con buena calidad, precios competitivos y un servicio profesional.
Carlos Alberto Vega (verified owner) –
El servicio de aftermarketspareparts.com es muy confiable. Me mantuvieron informado durante todo el proceso de compra y envío.
Pablo Hernández (verified owner) –
Estoy muy satisfecho con el motor Mercedes-Benz que recibí. Llegó limpio, bien protegido y después de instalarlo el vehículo funciona perfectamente.
Mickael Caron (verified owner) –
J’apprécie particulièrement le sérieux de cette entreprise. Chaque étape de la commande était clairement expliquée.
Cody Harrison (verified owner) –
I’ve ordered everything from suspension parts to body panels from this company, and every order has arrived exactly as described.
Felix Schneider (verified owner) –
Das Audi RS Bodykit hat mein Fahrzeug optisch komplett verändert. Die Passform und Verarbeitung sind auf einem sehr hohen Niveau.
Simon Bennett (verified owner) –
I purchased several suspension and brake components together, and every single part matched perfectly. It made the repair process much easier.
Florian Hartmann (verified owner) –
Die Lieferung nach Deutschland war problemlos. Alle Teile kamen pünktlich und sicher geschützt an.
Samuel Turner (verified owner) –
I was searching for a reliable supplier for Mercedes parts and found aftermarketspareparts.com. Their service was professional, and the parts arrived exactly as promised.
Michael Brandt (verified owner) –
Der Audi Austauschmotor war genau wie beschrieben. Mein Mechaniker war mit dem Zustand und der Leistung sehr zufrieden.
Juan Carlos Morales (verified owner) –
La atención al cliente fue excelente desde el primer contacto. Me ayudaron a verificar referencias y compatibilidad antes de realizar la compra.
Christian Meunier (verified owner) –
L’équipe est très réactive et prend le temps de répondre aux questions techniques avant la commande. C’est vraiment appréciable.
Philip Turner (verified owner) –
Ordering was simple, shipping was fast, and everything arrived exactly as described. I’ll definitely order from this company again.
Álvaro Romero (verified owner) –
The customer service team was knowledgeable and helped me identify the exact parts for my BMW model. Their assistance made the entire process simple.
Nicolas Laurent (verified owner) –
Grâce à la vérification de mon VIN avant l’expédition, j’ai reçu exactement les bonnes pièces pour mon véhicule. Un service vraiment appréciable.
Cedric Rousseau (verified owner) –
Livraison rapide en région parisienne et emballage impeccable. Toutes les pièces sont arrivées sans le moindre dommage.
Andrew Phillips (verified owner) –
I needed a replacement transmission for my Porsche, and aftermarketspareparts.com provided exactly what I was looking for. The unit arrived clean, well protected, and has been performing perfectly.
Cedric Rousseau (verified owner) –
Grâce à la vérification de mon VIN avant l’expédition, j’ai reçu exactement les bonnes pièces pour mon véhicule. Un service vraiment appréciable.
Robert Taylor (verified owner) –
The BMW engine I received looked professionally inspected before shipping. It started immediately after installation and has been performing flawlessly.
Pedro Iglesias (verified owner) –
Las llantas Aero que compré para mi Porsche tienen un acabado espectacular. Son elegantes, resistentes y encajan perfectamente en el vehículo.
Leon Hoffmann (verified owner) –
Der Motor für meinen Audi Q7 wurde schnell geliefert und war genau wie beschrieben. Nach dem Einbau läuft das Fahrzeug wieder perfekt.
Clement Delmas (verified owner) –
Je recommande vivement cette boutique à tous les passionnés de BMW. Le professionnalisme est au rendez-vous.
Jonas Schneider (verified owner) –
Die Mercedes Frontstoßstange passt perfekt und sieht nach der Montage wie ein Originalteil aus. Sehr gute Qualität.
Logan Edwards (verified owner) –
Excellent customer service. They verified every part number before shipping and made sure everything was compatible with my vehicle.
Henry Bennett (verified owner) –
The Porsche brake components fit exactly like the original parts. Quiet braking, smooth performance, and excellent quality.
Daniel Foster (verified owner) –
The Porsche wheels I ordered look incredible. The finish is flawless, they balanced perfectly, and they give the car a much more aggressive appearance.
Carlos Fernández (verified owner) –
Estoy muy satisfecho con el motor Mercedes-Benz que recibí. Llegó limpio, bien protegido y después de instalarlo el vehículo funciona perfectamente.
Harry Foster (verified owner) –
The replacement engine for my Audi A6 was exactly as described. After installation, the car starts instantly and runs smoothly with no issues.
Max Weber (verified owner) –
Meine Bestellung eines Audi RS Stoßfängers verlief problemlos. Die Passform war perfekt und die Lackierung konnte ohne zusätzliche Anpassungen durchgeführt werden.
Philippe Lemaire (verified owner) –
Les disques et plaquettes de frein pour mon Audi Q5 sont d’excellente qualité. Le freinage est puissant et silencieux.
Leo Vargas (verified owner) –
Los asientos Recaro para mi vehículo son de una calidad excepcional. La comodidad y el acabado son comparables a piezas de alta gama originales.
Joseph Parker (verified owner) –
The replacement hood and bumper for my Porsche fit perfectly without requiring any additional adjustments. Excellent craftsmanship.
Thomas Walker (verified owner) –
Finding reliable BMW parts online isn’t always easy, but this company delivered exactly what was promised.
Sebastian Klein (verified owner) –
Ich habe mehrere Audi Teile bestellt und jede Lieferung war korrekt. Die Produktbeschreibungen stimmen mit den erhaltenen Teilen überein.
Ricardo Romero (verified owner) –
El parachoques AMG para mi Mercedes-Benz llegó rápidamente y la calidad superó mis expectativas. El ajuste fue perfecto y después de pintarlo parece una pieza original.
Benjamin Cooper (verified owner) –
The quality of the Lamborghini wheels is impressive. They are lightweight, stylish, and give the car a much more aggressive appearance.
Luke Marshall (verified owner) –
The carbon fiber parts are lightweight, durable, and finished to a very high standard. They completely changed the appearance of my car.
Oliver Richardson (verified owner) –
I ordered a BMW transmission and several maintenance parts together. Everything arrived correctly and was packaged professionally.
Daniel Walker (verified owner) –
This is my third order from this company, and every experience has been excellent. Reliable products, honest descriptions, and fast shipping every time.
Julian Wolf (verified owner) –
Die Recaro Sitze für meinen Audi sind von erstklassiger Qualität. Sie bieten hervorragenden Komfort und sehen im Innenraum fantastisch aus.
Nathan Sullivan (verified owner) –
I purchased a set of performance wheels for my BMW, and they completely changed the appearance of the car. Great quality and flawless finish.
Eduardo Ponce (verified owner) –
I ordered a rear bumper and was pleasantly surprised by the build quality. The material feels durable, and installation was straightforward.
Pablo Navarro (verified owner) –
Compré piezas Lamborghini para restaurar mi vehículo y la calidad fue superior a lo esperado. Excelente proveedor.
Alexis Hubert (verified owner) –
J’ai commandé plusieurs pièces pour restaurer ma Porsche Cayman, et toutes étaient conformes aux descriptions du site.
Javier Mendoza (verified owner) –
El parachoques trasero para mi Audi llegó en perfectas condiciones. La instalación fue rápida y el ajuste fue exactamente como esperaba.
Thomas Reed (verified owner) –
The quality of the Lamborghini wheels is impressive. They are lightweight, stylish, and give the car a much more aggressive appearance.
Edouard Colin (verified owner) –
Très satisfait de la qualité des roues Aero pour ma Tesla. Elles sont parfaitement équilibrées et améliorent le style du véhicule.
Courtney Evans (verified owner) –
Fast processing, secure shipping, and excellent quality parts. It’s refreshing to find an online supplier that delivers exactly what they promise.
Rubén Morales (verified owner) –
Los neumáticos llegaron nuevos, bien protegidos y exactamente con las medidas que había solicitado. Excelente servicio.
Zachary Parker (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.
Ethan Brooks (verified owner) –
The BMW brake pads and rotors I ordered were high quality and easy to install. The braking performance has been excellent.
Jacob Ward (verified owner) –
The BMW brake pads and rotors I ordered were high quality and easy to install. The braking performance has been excellent.
Olivier Rey (verified owner) –
J’ai commandé plusieurs pièces Lamborghini et tout est arrivé parfaitement emballé. Le niveau de finition est impressionnant.
Ryan Mitchell (verified owner) –
I was impressed by how quickly the support team at aftermarketspareparts.com responded to my questions. They confirmed compatibility before shipping, and everything fit perfectly.
Samuel Turner (verified owner) –
The Lamborghini wheels arrived quickly and were packaged professionally. The attention to detail is impressive.
Connor Mitchell (verified owner) –
The Lamborghini body components were delivered safely and in excellent condition. The quality is impressive.
Claire Dawson (verified owner) –
The wheels arrived in perfect condition and completely changed the look of my BMW. They balanced perfectly, and the finish is beautiful.
Sergio Castaño (verified owner) –
Great buying experience from start to finish. The team verified compatibility using my VIN, which gave me confidence before ordering.
Rachel Bennett (verified owner) –
Customer support went above and beyond to help me locate a hard-to-find engine for my BMW. The entire experience was professional from beginning to end.
Daniel Lawson (verified owner) –
I appreciated how the support team confirmed compatibility before shipping. Their professionalism gave me confidence that I was ordering the correct parts.
Charles Aubert (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.
Julien Moreau (verified owner) –
Le pare-chocs arrière est identique à l’origine. Mon garage a pu le monter très facilement grâce à un ajustement parfait.
Benjamin Schulz (verified owner) –
Ich habe einen Lamborghini Frontspoiler bestellt und bin begeistert von der Präzision. Die Montage war problemlos und das Ergebnis sieht professionell aus.
Sergio Castaño (verified owner) –
The customer service team was knowledgeable and helped me identify the exact parts for my BMW model. Their assistance made the entire process simple.
Frederic Gauthier (verified owner) –
Les pièces sont de très bonne qualité et les prix restent compétitifs par rapport aux fournisseurs en France.
Gabriel Leroy (verified owner) –
J’ai commandé un moteur de remplacement pour ma BMW Série 3 et tout s’est déroulé parfaitement. Le moteur est arrivé bien emballé, conforme à la description, et mon garagiste l’a installé sans aucune difficulté. La voiture roule comme au premier jour.
Andrew Bailey (verified owner) –
Fast processing, secure shipping, and excellent quality parts. It’s refreshing to find an online supplier that delivers exactly what they promise.
Jacques Pichon (verified owner) –
Très bonne expérience avec cette boutique. Le service client a vérifié la compatibilité de toutes les pièces avant l’expédition, ce qui m’a évité toute erreur.