BMW N63B44O1 engine: specs, problems and prices

The N63B44O1 is a 4.4 L petrol V8 from BMW's N63 family, built 2012–2018 and rated at 450 hp and 650 Nm. It powered the BMW F10 550i, BMW F15 X5 50i and BMW F01 750i.

This guide is about the N63B44O1 specifically: its specification, the cars that use it, how it differs from the other N63 versions, what to check, prices from our stock and fitment answers for each model. For the history of the whole family, read our N63 guide.

• Capacity and layout: 4.4 L, V8, turbocharged
• Output: 450 hp and 650 Nm
• Production: 2012–2018
• Fitted to: 3 models across 3 chassis generations
• In our stock: 13 units from 3.224,00 € — N63B44O1 engines for sale

N63B44O1 specifications

N63B44O1: 4.4 L, V8, petrol, turbocharged. Output is 450 hp with 650 Nm of torque, and production ran from 2012 to 2018. That is about 102 hp and 148 Nm per litre, a strong figure for a road engine of its era. Within the N63 family, the N63B44T3 (462 hp) and N63B44M (530 hp) are more powerful, while the N63B44 (407 hp) is milder. It was fitted to the BMW F10 550i, BMW F15 X5 50i and BMW F01 750i.

What the code N63B44O1 means

• N marks an N-series code, the generation of BMW engines introduced from 2001.
• 63 is the family number.
• B stands for petrol (from the German Benzin).
• 44 is the capacity in decilitres, so 4.4 litres.
• O1 identifies the version or output stage.

Which BMW models use the N63B44O1

In the F10 sixth 5 Series (2010–2017), the N63B44O1 powered the 550i. We have 2 N63B44O1 units from F10 donor cars. All F10 engines

In the F15 third X5 (2013–2018), the N63B44O1 powered the X5 50i. We have 1 N63B44O1 unit from F15 donor cars. All F15 engines

In the F01 fifth 7 Series (2008–2015), the N63B44O1 powered the 750i. We have 3 N63B44O1 units from F01 donor cars. All F01 engines

N63B44O1 compared with other N63 versions

N63B44O1 or N63B44T2?

The N63B44T2 has the same 450 hp as the N63B44O1, from the same 4.4 L, and was built 2012–2018. Versions of the same size share the block and most mounting points, but the turbo or intake, injectors, software and sometimes the sump differ. Fitting one in place of the other usually means transferring parts and coding the engine control unit, so the simplest choice is the code your car left the factory with.

N63B44O1 or N63B44T3?

The N63B44T3 has 12 hp more than the N63B44O1 (462 against 450 hp), from the same 4.4 L, and was built 2016–2026. Versions of the same size share the block and most mounting points, but the turbo or intake, injectors, software and sometimes the sump differ. Fitting one in place of the other usually means transferring parts and coding the engine control unit, so the simplest choice is the code your car left the factory with.

N63B44O1 or N63B44?

The N63B44 has 43 hp less than the N63B44O1 (407 against 450 hp), from the same 4.4 L, and was built 2008–2013. Versions of the same size share the block and most mounting points, but the turbo or intake, injectors, software and sometimes the sump differ. Fitting one in place of the other usually means transferring parts and coding the engine control unit, so the simplest choice is the code your car left the factory with.

Common N63B44O1 problems

The N63B44O1 shares its weak points with the rest of the N63 family. These are the faults to check on a used unit and on your own engine. The full explanation of each is in the N63 guide.

Oil consumption from valve stem seals. Early engines burn oil because heat inside the V hardens the valve stem seals. BMW issued a customer care programme for this.

N63B44O1 maintenance

• 5W-30 BMW Longlife-01, about 8.5 litres with filter.
• Oil every 10,000 km at most; BMW's own updates shortened the interval.
• Timing chains at the front, one per bank.

Will the N63B44O1 fit my car?

Will the N63B44O1 fit my BMW F10 550i?

The N63B44O1 is the original engine for the BMW F10 550i, which makes it the straightforward choice. The sixth 5 Series was built 2010–2017, and the N63B44O1 was produced 2012–2018, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW F10 550i?

We have 2 N63B44O1 engines from F10 donor cars, priced from 3.281,00 € to 5.616,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the N63B44O1 fit my BMW F15 X5 50i?

The N63B44O1 is the original engine for the BMW F15 X5 50i, which makes it the straightforward choice. The third X5 was built 2013–2018, and the N63B44O1 was produced 2012–2018, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW F15 X5 50i?

We have 1 N63B44O1 engine from F15 donor cars, priced from 3.290,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the N63B44O1 fit my BMW F01 750i?

The N63B44O1 is the original engine for the BMW F01 750i, which makes it the straightforward choice. The fifth 7 Series was built 2008–2015, and the N63B44O1 was produced 2012–2018, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW F01 750i?

We have 3 N63B44O1 engines from F01 donor cars, priced from 3.224,00 € to 5.119,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

N63B44O1 prices

Our N63B44O1 stock runs to 13 units, priced from 3.224,00 € to 5.673,00 € with a median of 4.815,00 €.

Prices depend on the exact version, the donor's mileage, how complete the engine is and the demand for that code. Higher-output versions, low mileage and dressed engines with turbo, injectors and ancillaries cost more; long blocks and higher mileage cost less.

N63B44O1 prices by model year

Engines from 2010–2014 have a median of 5.527,00 €, while units from 2020–2024 sit at 5.635,00 €. Newer engines usually cost more because they come from younger donor cars with lower mileage and later updates.

N63B44O1 prices by mileage

Mileage matters less than history on a well-maintained BMW engine, but it is a useful guide. A low-mileage unit from a younger car gives you more life for a modest premium.

N63B44O1 engines in stock

These N63B44O1 units are in our Hamburg yard right now. Each listing shows real photographs of the engine you receive, its mileage and what is fitted.

BMW X6 50i F16 N63B44O1 Engine 2015 · 132,000 km5.673,00 €BMW M850i G15 N63B44O1 Engine 2020 · 207,000 km5.635,00 €BMW F01 750i N63B44O1 Complete Engine3.224,00 €BMW 750i G11 N63B44O1 Engine 20164.815,00 €BMW N63B44O1 Engine3.229,00 €BMW F15 X5 50i N63B44O1 Complete Engine3.290,00 €

BMW X6 50i F16 N63B44O1 Engine 2015 · 132,000 km — 5.673,00 €, reduced from 6.500,00 €. It comes from a 2015 donor car with 132,000 km, and 10 units are available. We can confirm fitment against your VIN the same day.

BMW M850i G15 N63B44O1 Engine 2020 · 207,000 km — 5.635,00 €, reduced from 6.500,00 €. It comes from a 2020 donor car with 207,000 km, and 22 units are available. We can confirm fitment against your VIN the same day.

BMW F01 750i N63B44O1 Complete Engine — 3.224,00 €, reduced from 3.800,00 €. It comes from a recorded donor car, and 29 units are available. The listing shows every side of the engine and the fitted parts.

BMW 750i G11 N63B44O1 Engine 2016 — 4.815,00 €, reduced from 5.200,00 €. It comes from a 2016 donor car, and 18 units are available. The listing shows every side of the engine and the fitted parts.

BMW N63B44O1 Engine — 3.229,00 €, reduced from 3.800,00 €. It comes from a recorded donor car, and 12 units are available. We can confirm fitment against your VIN the same day.

BMW F15 X5 50i N63B44O1 Complete Engine — 3.290,00 €, reduced from 3.800,00 €. It comes from a recorded donor car, and 6 units are available. Ask the desk for compression figures or extra photographs before you order.

Buying a used N63B44O1: checklist

1. Warranty terms in writing. Read what the warranty covers, how long it runs and what fitting conditions apply. Most warranties require a qualified workshop, new fluids and filters, and replacement of the cooling parts that caused the original failure.
2. Photographs from every side. Good suppliers photograph the actual engine you will receive. Look for the block stamp, the sump, the timing cover and any broken brackets or connectors in the pictures.
3. Confirm the exact engine code. Read the code stamped on the block and compare it with the code for your car. Send us the last seven characters of the VIN and we confirm the match before anything is paid.
4. Look at the oil and coolant. Clean oil without metal particles and coolant without oil are good signs. Milky oil, oily coolant or a burnt smell mean the engine needs further checks before it is fitted.
5. Compression or leak-down figures. Even compression across all cylinders tells you more than mileage. Ask for the figures, not just a pass or fail, and compare the highest and lowest readings: a spread above 10 to 15 percent deserves a question.
6. Turbocharger shaft play and oil. Rotate the compressor wheel by hand. A small amount of side play is normal; in-and-out play or wheel contact with the housing is not. Oil pooled in the intake or intercooler pipes points to worn seals.
7. Timing chain noise. Listen for a rattle at the front of the engine for the first seconds after a cold start. On an engine that cannot be run, look at the chain guides through the oil filler or with the valve cover off.
8. VANOS operation. Rough idle, a rattle from the front of the head and a loss of torque at low revs point to VANOS seals or solenoids. These are serviceable parts and are easier to renew with the engine out.
9. Double VANOS units and solenoids. Ask for the adaptation values or fault history if the engine was running. Solenoids are inexpensive and are often replaced as a matter of course on a used engine.
10. Injectors and high-pressure fuel pump. Direct-injection engines rely on high-pressure pumps and precise injectors. Ask whether the injectors are original or updated and whether there were fuel pressure faults.
11. Both cylinder banks. On a V engine, check compression, plugs and coils on both banks. Faults on one bank alone are common and easy to miss on a quick test.

Questions about the N63B44O1

How much power and torque does the BMW N63B44 have?

From the factory the BMW N63B44 makes 330 kW (450 HP) and 650 Nm of torque. It is a 4.4 liter (4,395 cc) V8, DOHC, 32 valve petrol engine with twin turbochargers.

Because it is turbocharged, the torque comes in low in the rev range, which makes the car feel strong in everyday driving. A healthy turbo, a clean intercooler and tight boost pipes are key to getting the full figure.

A used engine reaches its factory numbers when it is fitted with the matching engine computer and software, and serviced with the right oil and filters. If the engine computer from your car is a different version, a specialist may need to code it.

Every N63B44 on our site lists its year and mileage. Ask the desk for more pictures of any listing. We are happy to show the stamp, the ports and the ancillaries before you decide.

See all N63 Engines · Search N63B44 in the shop

Will the N63B44T3 engine fit my BMW G05 X5 M50i?

Yes, if your BMW G05 X5 M50i was built with the N63B44T3. BMW used this 4.4 liter (4,395 cc) petrol engine with 390 kW (530 HP) in the G05 X5 M50i from about 2018 to 2026.

In our records the N63B44T3 is the engine for the G05 X5 M50i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all N63 Engines · Search N63B44T3 in the shop

Can you check if an N63B44 fits my car with my VIN?

Yes, and it is free. Send the 17-character VIN of your car and, if you have it, the gearbox code. We check the engine family, the build year window and the parts your car needs.

For the N63B44, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW F10 550i, BMW G12 750i, BMW F15 X5 xDrive50i, BMW G30 550i and BMW F06 650i.

We only reserve an engine once the match is confirmed, so you never pay for the wrong unit. You can reach the Hamburg desk by email at autowerkeengines@gmail.com, or by phone and WhatsApp on +49 15510 030835, Monday to Friday, 9:00 to 16:00 CET.

You can also use the VIN check on our site. It reads the year, the make, the model and the engine from the public vehicle register.

See all N63 Engines · Search N63B44 in the shop

What is the BMW N63B44 engine?

The BMW N63B44 is a 4.4 liter (4,395 cc) petrol engine from the N63 family. It has a V8, DOHC, 32 valve layout with twin turbochargers, and makes 330 kW (450 HP) with 650 Nm of torque. BMW built it from 2012 to 2019 and it meets the Euro 6 emission standard.

You find the N63B44 in the BMW F10 550i, BMW G12 750i, BMW F15 X5 xDrive50i, BMW G30 550i and BMW F06 650i. What we list: BMW N63 4.4 twin-turbo V8 engines for 550i, 750i and X5 50i.

At Autowerke Engines every N63B44 is a real used engine from our yard in Hamburg. Before a unit is listed, the yard checks the engine code against the listing, writes down the parts fitted to it, seals every opening and photographs the real engine you will receive. Each listing shows the year, the mileage and the price, so you can compare units side by side.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all N63 Engines · Search N63B44 in the shop

What is the difference between the BMW N63 engines?

BMW N63 4.4 twin-turbo V8 engines for 550i, 750i and X5 50i. We list 2 versions: N63B44 (4.4 liter (4,395 cc), 330 kW (450 HP), 2012 to 2019); N63B44T3 (4.4 liter (4,395 cc), 390 kW (530 HP), 2018 to 2026).

The versions share the same basic design, but the power, the turbo or injection set-up, the electronics and the emission standard change. The right one for you is the one your car was built with.

The N63 family was used in chassis F10, G12, F15, G30, F06, G05, G11 and G16. The photos on each listing show the actual engine, not a stock picture. The yard checks the code, records what is bolted on, and seals the openings before the engine is offered.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all N63 Engines

Is the BMW N63B44T3 a diesel or petrol engine?

The N63B44T3 is a petrol engine. It is a 4.4 liter (4,395 cc) V8, DOHC, 32 valve unit with twin turbochargers, and it was built to the Euro 6 emission standard.

The emission standard matters for registration and for low-emission zones in many cities. When you replace an engine with the same code, the car keeps the same paperwork and the same emission class.

Petrol versions need the correct catalytic converters and oxygen sensors on the car to stay legal and to keep the engine computer happy. Reuse the parts from your car if they are in good condition.

If you are not sure which version you need, send us your VIN. We tell you the right code for free.

See all N63 Engines · Search N63B44T3 in the shop

How long does delivery of an N63B44 engine take?

Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day. Delivery to the Netherlands, Belgium, Germany, France, Luxembourg and Denmark takes 1 to 3 working days.

Spain, Italy, Portugal, Poland, Czechia, Austria, Ireland, the Nordics and the Baltics take 2 to 5 working days. Greek and Spanish islands, Malta, Cyprus and remote areas take 4 to 8 working days. The UK and other countries outside the EU are quoted one by one.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.

You get a tracking number when the pallet is collected. Check the wrapping before you sign, and note any damage on the paperwork.

See all N63 Engines · Search N63B44 in the shop

How much is a replacement N63B44 engine for a BMW G30 550i?

A used N63B44 for the BMW G30 550i costs from about 3.850 € to 5.950 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The N63B44 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all N63 Engines · Search N63B44 in the shop

What comes with a used N63B44 engine?

Each N63B44 is sold as described on its own listing. The yard writes down the parts that are fitted to that unit, such as the turbo, the injectors, the manifolds or the alternator, so you know what arrives.

Some units are long engines with few ancillaries, others are more complete. If you need a part that is not listed, ask the desk. We often have the matching items in the yard.

Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.

On delivery, the carrier brings the pallet to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready.

See all N63 Engines · Search N63B44 in the shop

How long does delivery of an N63B44T3 engine take?

Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day. Delivery to the Netherlands, Belgium, Germany, France, Luxembourg and Denmark takes 1 to 3 working days.

Spain, Italy, Portugal, Poland, Czechia, Austria, Ireland, the Nordics and the Baltics take 2 to 5 working days. Greek and Spanish islands, Malta, Cyprus and remote areas take 4 to 8 working days. The UK and other countries outside the EU are quoted one by one.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.

You get a tracking number when the pallet is collected. Check the wrapping before you sign, and note any damage on the paperwork.

See all N63 Engines · Search N63B44T3 in the shop

Will the N63B44 engine fit my BMW G12 750i?

Yes, if your BMW G12 750i was built with the N63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 330 kW (450 HP) in the G12 750i from about 2012 to 2019.

In our records the N63B44 is the engine for the G12 750i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your G12 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all N63 Engines · Search N63B44 in the shop

Will the N63B44 engine fit my BMW F15 X5 xDrive50i?

Yes, if your BMW F15 X5 xDrive50i was built with the N63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 330 kW (450 HP) in the F15 X5 xDrive50i from about 2012 to 2019.

In our records the N63B44 is the engine for the F15 X5 xDrive50i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all N63 Engines · Search N63B44 in the shop

Delivery, warranty and payment

Before an N63B44O1 leaves our Hamburg yard it is drained of oil and coolant, every opening is sealed, and it is strapped to a pallet and wrapped. We send photographs of the packed unit and the tracking details.

Delivery is door to door and included in the price. Most European addresses receive the engine within five to ten working days; Germany and its neighbours are usually faster.

A 12-month warranty covers eligible internal failure when the engine is fitted by a qualified workshop with new fluids and filters. You can pay by card, bank transfer or crypto and receive the invoice by email straight away.

N63 engine guide · N63B44O1 engines for sale · All N63 engines · Send us your VIN