The N63B44A (also written as N63B44A / N63B44O0) is an early version of BMW’s first-generation N63 series 4.4L twin-turbocharged V8 gasoline engine.
It was introduced in 2008 and was primarily produced from approximately 2012 to 2014 (before being replaced by improved versions such as the N63TU).
It was BMW’s first mass-produced twin-turbo V8, featuring a mid-hot-end (turbochargers located within the V-angle) design.
Looking for a reliable BMW N63 remanufactured engine? We supply professionally remanufactured N63 V8 engines engineered to restore
original BMW performance while addressing common failure points found in early-generation N63 engines.
Our remanufactured BMW N63 engines for sale are ideal for workshops, distributors, and BMW owners seeking a cost-effective and long-lasting replacement solution.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested
over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country.
Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Engine Code： N63B44A (N63B44O0)
Displacement：4,395 cm³ (4.4 L)
Bore × Stroke：89.0 mm × 88.3 mm
Compression Ratio：10.0:1
Cylinder Configuration： 90° V8, aluminum alloy cylinder block (Alusil cylinder walls)
Valve Train：DOHC 32-valve + Double-VANOS (dual variable intake and exhaust valve timing)
Fuel System：Direct Injection (High Precision Injection)
Turbocharging： Twin-turbo (TwinPower Turbo, Garrett turbos)
Power：approx. 300 kW / 408 PS (early standard version)
Torque: approx. 600 Nm
Timing Drive: Timing chain
Engine Oil Capacity: approx. 8.5 L (recommended: 5W-30 / BMW LL-01 specification)
Engine Weight (approx.): 230 kg (complete unit)
Production Years: 2008–approx. 2014 (early versions)
A “long block” typically includes core components such as the cylinder block, crankshaft, pistons, connecting rods,
cylinder head, and timing system; it does not include peripheral components such as intake and exhaust manifolds, turbochargers,
fuel injectors, the engine control unit, or the water pump. When replacing a long block, you must carefully verify the engine code and the vehicle's VIN.
The early N63 engine family was used in selected BMW models, including:
BMW 550i – F10
BMW 550i Gran Turismo – F07
BMW 650i Convertible – F12
BMW 650i Coupe – F13
BMW 750i – F01
BMW 750Li – F02
BMW X5 xDrive50i – E70
BMW X6 xDrive50i – E71
Selected BMW X6 ActiveHybrid – E72 applications
Vehicle compatibility depends on the original engine version, production date, market specification and drivetrain configuration.
Please provide your VIN or original engine identification before placing an order.
The following BMW catalogue numbers are references for N63B44A short-engine or exchange short-engine assemblies:
11002212338
11002212340
11002296775
11002296776
11005A4AED7
Important: These are catalogue references for short-engine or remanufactured engine assemblies, not universal long-block OE numbers.
The correct replacement long-block reference must be verified using the vehicle VIN and BMW parts catalogue.
Addresses oil consumption, timing chain wear, and overheating problems.
Save 30–60% vs new BMW engine.
Restores horsepower, torque, and smooth operation.
Upgraded components extend engine lifespan.
We welcome inquiries from:
Engine importers
Automotive parts wholesalers
Engine distributors
Auto repair and rebuilding workshops
Automotive parts retailers
International trading companies
Please contact us for product availability, engine configuration, quotation, packaging details and shipping arrangements.
Q1: What is the displacement of the BMW N63B44A?
The early N63 engine has a displacement of 4,395 cc, or approximately 4.4 liters.
Q2: Is the BMW N63B44A a V8 engine?
Yes. It is a 4.4L V8 gasoline engine with twin turbochargers.
Q3: Which BMW vehicles use the N63B44A engine?
Selected BMW 550i, 650i, 750i, X5 xDrive50i and X6 xDrive50i models use early N63 engine versions. Exact compatibility must be verified by VIN.
Q4: Is N63B44A interchangeable with N63TU?
Not necessarily. Different N63 generations may have differences in engine components, control systems and installation configurations.
Confirm the exact engine version before purchasing.
Q5: Does the long block include turbochargers?
Not by default. Turbochargers and external accessories depend on the actual product package and must be confirmed before ordering.
Q6: Can you supply the engine for wholesale orders?
Please contact us with your required quantity, destination country and engine specifications for a B2B quotation.
Looking for a BMW N63B44A 4.4L V8 twin turbo engine long block?
Send us your VIN, original engine code or engine photos. Our sales team can help check engine compatibility
and provide product details for your wholesale purchasing requirements.
Contact us today for a quotation and further product information.
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our BMW N63 Remanufactured Engine use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
