The N63 was the world’s first mass-produced V8 turbocharged engine featuring a “Hot-V” (hot-side-in) layout (with the twin turbochargers and intake manifold positioned inside the V-angle of the cylinders), introduced by BMW in 2008. The N63B44A was the designation for the first production batch of this series, designed to fully replace the earlier N62 naturally aspirated V8 engine.
Core Materials and Technical Construction (Alusil Aluminum V8 Block):
High-strength silicon-aluminum alloy (Alusil / AlSi17Cu4): The cylinder block is a single-piece casting made entirely of silicon-aluminum alloy, with no separate cast-iron cylinder liners. A special etching process exposes hard silicon crystals on the inner cylinder walls, creating a sliding surface with extremely high hardness and low friction.
Open-Deck / Deep-Skirt Design: The upper part of the cylinder block features an open-deck design to facilitate rapid dissipation of high heat; while the lower section features a deep-skirt design (Deep Skirt) and is equipped with cross-bolted main caps (Cross-bolted Main Caps), providing robust chassis rigidity to support the 4.4T’s powerful torque output.
90° V8 Configuration: A standard 90-degree V8 configuration that demands extremely high cooling capacity.
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:
Displacement: 4395 cc (4.4 L)
Cylinder Configuration: V8 (90° angle)
Bore × Stroke: 89.0 mm × 88.3 mm
Compression Ratio: 10.0:1
Cylinder block material: Aluminum alloy + Alusil / plasma-sprayed steel coating
Cylinder head material: Aluminum alloy, DOHC 32-valve (4 valves per cylinder)
Emissions: EURO 5
Fitment / Applications:
Note: The N63B44A is primarily compatible with first-generation N63 BMW full-size sedans and SUVs manufactured from 2008 to 2013.
BMW 5 Series:
BMW 550i / 550i xDrive (F10 / F11, 2010–2013)
BMW 550i Gran Turismo (F07 550i GT, 2009–2012)
BMW 6 Series:
BMW 650i / 650i xDrive (F12 / F13 / F06 Gran Coupe, 2011–2012)
BMW 7 Series:
BMW 750i / 750Li / 750i xDrive (F01 / F02, 2008–2012)
BMW ActiveHybrid 7 (F04, 2010–2012)
BMW X Series (SUV Series):
BMW X5 xDrive50i (E70, 2010–2013)
BMW X6 xDrive50i (E71, 2008–2014)
(Please verify the engine code N63B44A and VIN for confirmation.)
First-Generation Bare Cylinder Block/Mid-Block Assembly OE Numbers:
11110443621
11110443623
11112158434
11112211832
11110443622
Holland / Interchange Number (U.S. Specification Salvage/Replacement Code):
300-10180A
| Model Number | N63B44A |
| 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 remanufactured products 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.
