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Engine N63B44A WIESMANN BMW ALPINA GT MF4 X5 E70 X6 E71 E72 7 Series F01 F02 F03 F04 5 F07 F10 B7 F11 B5 6 F12 F13 B6 4.4 xDrive 50i ActiveHybrid 750i Li 550i BITURBO Allwheel Drive 650i 408hp 449hp

Engine N63B44A WIESMANN BMW ALPINA GT MF4 X5 E70 X6 E71 E72 7 Series F01 F02 F03 F04 5 F07 F10 B7 F11 B5 6 F12 F13 B6 4.4 xDrive 50i ActiveHybrid 750i Li 550i BITURBO Allwheel Drive 650i 408hp 449hp

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Buy N63 B44 A engine

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4.619,00 €

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🟡 Occasionally in stock ❓

⚠️ Note on availability:

Due to high demand and rapidly changing stock levels, we are unable to display real-time availability in our webshop. The availability indication therefore represents an estimate of the likelihood that a motor is currently in stock.

For binding information and a concrete offer, we kindly ask you to submit a request. You will receive an offer within a few hours.

incl. VAT, plus shipping costs

4–8 business days delivery time.

In Stock

Request now without obligation

Online orders in our online shop is currently not available: please fill out the “Availability Request Form” first. You will then receive a tailored offer in PDF format, after which you can place your order directly via email or phone.

Non-committal offer: This engine (N63 B44 A) is also available through other sales channels (both online and offline). Consequently, the possibility of a short-term intermediate sale cannot be ruled out. It is essential to check the engine’s availability and compatibility with your vehicle before proceeding.

WE ARE HERE TO HELP YOU!

Available N63 B44 A engines

Discover our diverse range of engines – perfectly tailored to your individual needs. Whether you're looking for affordable replacement engines, complete engines, or professional engine overhauls: with us, you're guaranteed to find the right solution for your vehicle.


The listed prices vary depending on the mileage and current stock levels/capacities. You will receive a binding price with a customized offer upon request.

Our used N63 B44 A engine without attachments includes the following scope of delivery:

  • Tested short block (engine block with oil pump, crankshaft, bearings, connecting rods, pistons)

  • Cylinder head including camshaft and valves

  • Oil pan & valve cover (used as transport protection, may need to be reused from the old part)

  • Testing procedures: Leak-down test, cylinder inspection with endoscope camera, inspection of oil pan and valve cover, visual check of crankshaft & camshafts, examination of residues in oil pump and oil pan

The timing chain/belt must be replaced before installation.
Request the availability of the engine now—free and without obligation:

Our complete used N63 B44 A engine with attachments includes the following scope of delivery:

  • Tested engine (engine block + cylinder head)

  • Untested attachments such as starter, injectors, injection system, turbocharger, ignition coils, intake manifold, and much more

  • Oil pan & valve cover used as transport protection (may need to be reused from the old part)

  • Testing procedures: Leak-down test, cylinder inspection with endoscope camera, inspection of oil pan and valve cover, examination of residues in oil pump and oil pan

Attachments are included free of charge, but without any warranty.
The timing chain/belt must always be replaced before installation.
Request the availability of the engine now—free and without obligation:

Our overhauled N63 B44 A engine without attachments has been fully reconditioned to 0 km and includes:

  • Fully overhauled engine block with cylinder head

  • New parts: valves, valve stem seals, piston rings, main/connecting rod bearings, oil pump, internal timing chain/belt

  • Processing & testing procedures: camshaft and crankshaft are measured, polished, crack-tested, and ultrasonically cleaned; cylinder head is measured, resurfaced, and ultrasonically cleaned; block is honed, ground, and measured; pistons are inspected, cleaned, and undergo UV crack testing

A durable engine in like-new condition – ideal for the highest demands.
Request the availability of the engine now—free and without obligation.

With our customer engine overhaul service, we recondition your defective N63 B44 A engine:

  • Collection of your engine (without attachments)

  • Professional overhaul to 0 km with high-quality new parts (e.g., Kolbenschmidt, FEBI, FAI)

  • New parts: valves, piston rings, oil pump, bearings, internal timing chain/belt

  • Processing & testing procedures: camshaft and crankshaft are measured, polished, crack-tested, and ultrasonically cleaned; cylinder head is measured, resurfaced, and ultrasonically cleaned; block is honed, ground, and measured; pistons are inspected, cleaned, and undergo UV crack testing

After approximately 10–12 business days, you will receive your reconditioned engine back.
Request the availability of the overhaul service now—free and without obligation.

Check compatibility and availability of engine N63 B44 A

Kindly complete the “request for quote” form. We will confirm whether the engine N63 B44 A matches your vehicle and provide you with detailed proposals for all the available options, whether you’re looking for a used engine, a reconditioned one, or prefer it bare or complete. Following this, you may proceed to place your order directly.
Request for Quote

" I'll assess the availability and verify the compatibility of the engine N63 B44 A using your vehicle's VIN before sending a detailed quote to your email.

Each engine is subject to another rigorous quality check prior to dispatch to ensure only those in prime condition are shipped from our warehouse.

Our exclusive partnership with the DB-Schenker delivery service enables us to offer engines at unbeatable prices and ensure the quickest possible delivery times. "

Stefan
StefanCustomer Consultant

" I'll assess the availability and verify the compatibility of the engine N63 B44 A using your vehicle's VIN before sending a detailed quote to your email.

Each engine is subject to another rigorous quality check prior to dispatch to ensure only those in prime condition are shipped from our warehouse.

Our exclusive partnership with the DB-Schenker delivery service enables us to offer engines at unbeatable prices and ensure the quickest possible delivery times. "

Stefan
Stefancustomer consultant

Engine description:

  • Engine code: N63 B44 A, N63B44A
  • Engine condition: Rebuilt, Remanufactured or Used engine
  • Contents of delivery Bare engine (without attached parts) or a complete engine (depending on your choice)
  • Mileage: 0km (overhauled) or up to max 130,000km (details in the PDF offer)

Your benefits:

  • Security: 12 months warranty
  • Reliability: Engine specialist and wholesaler since 1993
  • Superior Quality: All engines are rigorously tested

Compatible vehicles with engine N63 B44 A:

  • Makes: ALPINA, BMW, WIESMANN
  • Models: 5 Series F07, 5 Series F10, 5 Series F11, 6 Series F12, 6 Series F13, 7 Series F01 F02 F03 F04, B5, B6, B7, GT MF4, MF4, X5 E70, X6 E71 E72
  • Motorization: 4.4 408hp 300kW, 550i 408hp 300kW, 550i 449hp 330kW, 550i xDrive 408hp 300kW, 650i 408hp 300kW, 650i 449hp 330kW, 650i xDrive 407hp 300kW, 650i xDrive 408hp 300kW, 650i xDrive 449hp 330kW, 750i Li 408hp 300kW, 750i Li xDrive 408hp 300kW, ActiveHybrid 485hp 357kW, ActiveHybrid 7 449hp 330kW, ActiveHybrid 7 465hp 342kW, ActiveHybrid xDrive 408hp 300kW, BITURBO 507hp 373kW, BITURBO 540hp 397kW, BITURBO 600hp 441kW, BITURBO Allwheel Drive 507hp 373kW, BITURBO Allwheel Drive 540hp 397kW, xDrive 50i 408hp 300kW, xDrive 50i 449hp 330kW
Detailed list of compatible vehicles

N63 B44 A Engine Technical Specifications & Compatibility.

Additional information

Engine Code

N63 B44 A, N63B44A
Make

ALPINA, BMW, WIESMANN
Model

5 F07, 5 F10, 5 F11, 6 F12, 6 F13, 7 F01 F02 F03 F04, B5 F10, B5 F11, B6 F06, B6 F12, B6 F13, B7 F01 F02, GT MF4, MF4, X5 E70, X6 E71 E72
Motorization

4.4, 550i, 550i xDrive, 650i, 650i xDrive, 750i Li, 750i Li xDrive, ActiveHybrid, ActiveHybrid 7, ActiveHybrid xDrive, BiTurbo, BITURBO Allwheel Drive, xDrive 50i
Power (hp)

407hp, 408hp, 449hp, 465hp, 485hp, 507hp, 540hp, 600hp
Power (kW)

300kW, 330kW, 342kW, 357kW, 373kW, 397kW, 441kW
Fuel

Petrol
Number of Cylinders

8
Engine Capacity (ccm)

4395
Torque (Nm)

600
Compression

10
Bore (mm)

89
Stroke (mm)

88.3
Number of Bearings

5
Number of Valves

32
Engine Charging

Exhaust Turbocharger, Turbo/Intercooler
Combustion

Petrol Engine
Fuel Mixture

Direct Injection
Engine Type

V
Cylinder Type

DOHC
Engine Management

Chain
Price Used Engine (€)

4619
Price Complete Engine (€)

5539
Price Engine Overhaul (€)

5539

About Us

  • Our firm, with its headquarters in Mittenwalde, Germany, has been a prominent distributor of used and reconditioned engines since 1993
  • As of June 2022, we've sold over 36,000 engines and transmissions, making us one of the world’s leading engine suppliers.
  • A significant portion of our sales are to intermediaries and automotive workshops, a testament to our competitive prices and dependable service.

Robust and durable N63 B44 A engine for ALPINA, BMW, WIESMANN

  • Our used engines come from second-hand/accident-damaged vehicles (insurance). These are not repaired or makeshift engines.
  • That's why our engines are notably long-lasting and sturdy.

Thoroughly tested ALPINA, BMW, WIESMANN N63 B44 A engine

  • The N63 B44 A, N63B44A engine undergoes a thorough inspection before sale:
  • Compression test (leakdown)
  • Endoscopic inspection, oil pan, cylinders,
  • Valve cover, crankshaft, camshaft, oil pump, etc., are all checked.
  • Detailed control procedures are available in the PDF offer.

Our service for the N63 B44 A engine

  • Depending on availability, we offer various N63 B44 A, N63B44A engines for your ALPINA, BMW, WIESMANN:
  • A tested used bare engine without ancillary parts
  • A reconditioned engine reset to 0km
  • A complete engine with ancillary parts
  • Customer's engine reconditioning
  • Engine installation/mounting (This is no longer offered due to capacity reasons)

Awards and Reviews for Fair-Motors

Award for being the most popular engine dealer in Germany
"FAIR-MOTORS is the MOST POPULAR engine dealer on the biggest comparison platform for engines and engine repair (MotorschadenVergleich.de)."
Rated 4.68 out of 5
Excellent
4,68 out of 5,00 Stars
total 327 Reviews
89,76% positive
(Sep. 2022) 

Information about the ALPINA, BMW, WIESMANN replacement engine N63 B44 A:

The N63 B44 A, N63B44A engine is used by the manufacturer ALPINA, BMW, WIESMANN in the following models: 5 Series F07, 5 Series F10, 5 Series F11, 6 Series F12, 6 Series F13, 7 Series F01 F02 F03 F04, B5, B6, B7, GT MF4, MF4, X5 E70, X6 E71 E72.

Engine type and performance:

Depending on the engine control unit, the Petrol engine N63 B44 A has an output of 407hp, 408hp, 449hp, 465hp, 485hp, 507hp, 540hp, 600hp, which is equivalent to 300kW, 330kW, 342kW, 357kW, 373kW, 397kW, 441kW.

The 8-cylinder Exhaust Turbocharger engine is Water-cooled and produces a torque of 600Nm with a displacement of 4395ccm.

The 4.4, 550i, 550i xDrive, 650i, 650i xDrive, 750i Li, 750i Li xDrive, ActiveHybrid, ActiveHybrid 7, ActiveHybrid xDrive, BiTurbo, BITURBO Allwheel Drive, xDrive 50i N63 B44 A engine features 32 valves, 5 bearings, and achieves a compression ratio of 10 with a stroke of 88.3 mm and a bore of 89 mm.

It is a DOHC Petrol Engine V engine with Direct Injection, powered by a Chain.

Detailed list of compatible vehicles for the engine N63 B44 A:

Make Model Motorization
ALPINAB5 (F10) [from 2010/09 to 2016/12]BITURBO [507 hp, 373 kW, 4395 cc, from 2010/09 to 2011/12]
ALPINAB5 (F10) [from 2010/09 to 2016/12]BITURBO [540 hp, 397 kW, 4395 cc, from 2012/01 to 2014/12]
ALPINAB5 (F10) [from 2010/09 to 2016/12]BITURBO [600 hp, 441 kW, 4395 cc, from 2015/01 to 2016/12]
ALPINAB5 Estate (F11) [from 2010/09 to 2016/12]BITURBO [507 hp, 373 kW, 4395 cc, from 2010/09 to 2011/12]
ALPINAB5 Estate (F11) [from 2010/09 to 2016/12]BITURBO [540 hp, 397 kW, 4395 cc, from 2012/01 to 2014/12]
ALPINAB5 Estate (F11) [from 2010/09 to 2016/12]BITURBO [600 hp, 441 kW, 4395 cc, from 2015/01 to 2016/12]
ALPINAB6 Convertible (F12) [from 2011/09 to 2016/03]BITURBO [540 hp, 397 kW, 4395 cc, from 2011/09 to 2014/09]
ALPINAB6 Coupe (F13) [from 2011/09 to 2016/03]BITURBO [540 hp, 397 kW, 4395 cc, from 2011/09 to 2014/09]
ALPINAB6 Gran Coupe (F06) [from 2014/04 to 2016/03]BITURBO All-wheel Drive [540 hp, 397 kW, 4395 cc, from 2014/04 to 2014/12]
ALPINAB7 (F01, F02) [from 2009/03 to 2016/01]BITURBO All-wheel Drive [507 hp, 373 kW, 4395 cc, from 2010/09 to 2012/06]
ALPINAB7 (F01, F02) [from 2009/03 to 2016/01]BITURBO [507 hp, 373 kW, 4395 cc, from 2009/03 to 2012/06]
BMW5 (F10) [from 2009/01 to 2016/10]550 i xDrive [405 hp, 298 kW, 4395 cc, from 2012/09 to 2013/06]
BMW5 (F10) [from 2009/01 to 2016/10]550 i xDrive [408 hp, 300 kW, 4395 cc, from 2010/08 to 2013/06]
BMW5 (F10) [from 2009/01 to 2016/10]550 i [405 hp, 298 kW, 4395 cc, from 2010/09 to 2013/06]
BMW5 (F10) [from 2009/01 to 2016/10]550 i [408 hp, 300 kW, 4395 cc, from 2010/03 to 2013/06]
BMW5 Gran Turismo (F07) [from 2009/01 to 2017/02]550 i xDrive [408 hp, 300 kW, 4395 cc, from 2010/06 to 2012/06]
BMW5 Gran Turismo (F07) [from 2009/01 to 2017/02]550 i [408 hp, 300 kW, 4395 cc, from 2009/08 to 2012/06]
BMW5 Gran Turismo (F07) [from 2009/01 to 2017/02]550 i [449 hp, 330 kW, 4395 cc, from 2012/07 to 2017/02]
BMW5 Touring (F11) [from 2009/11 to 2017/02]550 i [408 hp, 300 kW, 4395 cc, from 2010/09 to 2013/06]
BMW6 Convertible (F12) [from 2010/12 to 2018/06]650 i xDrive [405 hp, 298 kW, 4395 cc, from 2011/09 to 2012/06]
BMW6 Convertible (F12) [from 2010/12 to 2018/06]650 i xDrive [407 hp, 300 kW, 4395 cc, from 2011/09 to 2012/06]
BMW6 Convertible (F12) [from 2010/12 to 2018/06]650 i xDrive [449 hp, 330 kW, 4395 cc, from 2012/07 to 2018/06]
BMW6 Convertible (F12) [from 2010/12 to 2018/06]650 i [405 hp, 298 kW, 4395 cc, from 2011/09 to 2012/12]
BMW6 Convertible (F12) [from 2010/12 to 2018/06]650 i [408 hp, 300 kW, 4395 cc, from 2010/12 to 2012/06]
BMW6 Convertible (F12) [from 2010/12 to 2018/06]650 i [449 hp, 330 kW, 4395 cc, from 2012/07 to 2018/06]
BMW6 Coupe (F13) [from 2011/07 to 2017/10]650 i xDrive [405 hp, 298 kW, 4395 cc, from 2011/09 to 2012/06]
BMW6 Coupe (F13) [from 2011/07 to 2017/10]650 i xDrive [408 hp, 300 kW, 4395 cc, from 2011/09 to 2015/02]
BMW6 Coupe (F13) [from 2011/07 to 2017/10]650 i [405 hp, 298 kW, 4395 cc, from 2011/09 to 2012/12]
BMW6 Coupe (F13) [from 2011/07 to 2017/10]650 i [408 hp, 300 kW, 4395 cc, from 2011/07 to 2012/06]
BMW7 (F01, F02, F03, F04) [from 2008/02 to 2015/12]750 i, Li xDrive [408 hp, 300 kW, 4395 cc, from 2009/09 to 2012/06]
BMW7 (F01, F02, F03, F04) [from 2008/02 to 2015/12]750 i, Li [408 hp, 300 kW, 4395 cc, from 2008/09 to 2012/06]
BMW7 (F01, F02, F03, F04) [from 2008/02 to 2015/12]ActiveHybrid 7 [449 hp, 330 kW, 4395 cc, from 2010/04 to 2012/06]
BMW7 (F01, F02, F03, F04) [from 2008/02 to 2015/12]ActiveHybrid 7 [465 hp, 342 kW, 4395 cc, from 2010/04 to 2012/06]
BMWX5 (E70) [from 2006/02 to 2013/07]xDrive 50 i [405 hp, 298 kW, 4395 cc, from 2009/09 to 2013/06]
BMWX5 (E70) [from 2006/02 to 2013/07]xDrive 50 i [408 hp, 300 kW, 4395 cc, from 2010/04 to 2013/07]
BMWX6 (E71, E72) [from 2007/06 to 2014/07]ActiveHybrid xDrive [408 hp, 300 kW, 4395 cc, from 2009/01 to 2011/10]
BMWX6 (E71, E72) [from 2007/06 to 2014/07]ActiveHybrid [485 hp, 357 kW, 4395 cc, from 2009/01 to 2011/10]
BMWX6 (E71, E72) [from 2007/06 to 2014/07]xDrive 50 i [408 hp, 300 kW, 4395 cc, from 2008/07 to 2014/07]
BMWX6 (E71, E72) [from 2007/06 to 2014/07]xDrive 50 i [449 hp, 330 kW, 4395 cc, from 2007/10 to 2014/06]
WIESMANNGT MF4 Coupe [from 2003/09]4.4 [408 hp, 300 kW, 4395 cc, from 2010/11]
WIESMANNMF4 Roadster [from 2009/03]4.4 [408 hp, 300 kW, 4395 cc, from 2010/11]

FAQ:

The quickest way is to fill out the “request for quote” form. Please provide the engine code N63 B44 A and your VIN number so we can accurately identify the engine that is compatible with your vehicle. You will swiftly receive a detailed offer in PDF format via email. If everything matches, you can then proceed with the order.

It depends on the inventory. We sell N63 B44 A engines either complete or bare. The complete engines come with spare parts included.

The engine is compatible with the following make and models:
ALPINA, BMW, WIESMANN | 5 Series F07, 5 Series F10, 5 Series F11, 6 Series F12, 6 Series F13, 7 Series F01 F02 F03 F04, B5, B6, B7, GT MF4, MF4, X5 E70, X6 E71 E72

To be certain, you should provide us with your VIN number so we can verify the engine’s compatibility.

The contents of the delivery vary depending on the engine. For the complete engine, we deliver the engine block with the cylinder head, valve cover, oil pan, and the injection system, turbocharger, alternator, manifold, wiring harness, etc. For the bare engine without ancillary parts, we deliver the engine block with the cylinder head, valve cap, and oil pan.

  • The contents of the delivery may vary. Please check the exact contents of the delivery in the PDF offer.

The mileage depends on the condition of the engine. The overhauled engine has been reset to 0km. The mileage of the used engine can vary. Make a brief inquiry on our website, and you will receive a detailed offer with precise mileage information.

The following parts are replaced with NEW ones:

  • Valves
  • Valve stem seals
  • Piston rings
  • Connecting rod bearings and main bearings
  • Oil pump
  • Timing chain with tensioner

Additional revision steps:

  • The camshaft and crankshaft are measured, polished, checked for cracks, and ultrasonically cleaned.
  • The cylinder head is measured, leveled, and ultrasonically cleaned.
  • The block is planed, sanded, and measured.
  • Pistons are inspected, cleaned, and subjected to UV crack testing.
  • Leakdown tests

✅ We can, of course, also overhaul your faulty engine.

FULL SERVICE:

We handle everything in-house, from engine overhauling to marketing and web design. This cuts down on many costs.

EFFICIENT USE OF OUR MACHINES:

Our processes are finely tuned, ensuring no downtime. Our machines and staff are fully utilized.

OPTIMIZED TASK DISTRIBUTION:

Each person works solely within their area of expertise. For instance, we have different specialists for various makes/types of engines. This saves a significant amount of time and enhances quality.

Yes, sometimes. The deposit varies depending on the engine.

The price of the engine varies depending on the engine’s condition:

Used engine: 4619 €

Complete engine: 5539 €

Overhauled engine: €

Engine Overhaul: 5539 €

Please note: Prices and availability are provided for guidance only!

Make an inquiry on the website to receive a detailed and final offer.

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