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.
Specifications
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 BMW N63 is a 4.4L twin-turbocharged V8 engine widely used in:
• BMW 5 Series (550i)
• BMW 7 Series (750i)
• BMW X5 / X6 (xDrive50i)
• BMW 6 Series & 8 Series models
Known for its high performance, the N63 engine also requires professional remanufacturing to ensure long-term durability due to its advanced turbocharged design.
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.
| Model Number | N63B44A |
Main Compatible Models
The N63B44A is primarily installed in the following models (early versions):
BMW 5 Series F07 / F10 / F11 (550i / 550i GT)
BMW 6 Series F12 / F13 (650i)
BMW 7 Series F01 / F02 (750i / 750Li)
BMW X5 E70 (xDrive50i)
BMW X6 E71 (xDrive50i)
Select Alpina and ActiveHybrid models
| 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.
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