Buy BMW N63 Engines Online

The BMW N63 is a high-performance 4.4L twin-turbocharged V8 engine found in some of BMW’s most powerful luxury and performance models. Known for its strong acceleration and smooth power delivery, the N63 is a favorite among BMW enthusiasts and tuners.

Whether you need a replacement engine for your 550i, X5 50i, or 750i, or you’re planning a performance build, we offer low-mileage, fully inspected N63 engines with warranty options.

BMW N63 Engine Specifications

Engine Type: 4.4L Twin-Turbo V8 (N63B44)
Horsepower: 400 HP (N63) – 445 HP (N63TU)
Torque: 450 lb-ft – 480 lb-ft (N63TU)
Applications:
- BMW 550i (F10, G30)
- BMW 650i (F06, F12, F13)
- BMW 750i (F01, G11)
- BMW X5 50i (E70, F15)
- BMW X6 50i (E71, F16)
Key Features:
- Hot-V turbo design (turbos mounted between cylinder banks)
- Direct fuel injection for efficiency & power
- Valvetronic variable valve lift
- Upgraded versions (N63TU) have improved reliability & performance

N63 vs. N63TU – What’s the Difference?

Feature	N63 (Early Version)	N63TU (Technical Update)
Power Output	400 HP / 450 lb-ft	445 HP / 480 lb-ft
Fuel Economy	Less efficient	Improved efficiency
Reliability	Known for oil consumption issues	Fixed in TU models
Models	2010-2013 550i, X5 50i	2014+ 550i, X5 50i, 750i

Recommendation: If possible, opt for the N63TU for better reliability and power.

Common BMW N63 Engine Issues & Solutions

While the N63 is a powerful engine, some owners report:

High oil consumption (fixed in N63TU)
Turbocharger & valve stem seal wear (updated parts available)
Cooling system concerns (regular maintenance helps)

Our engines are inspected to ensure they meet performance standards before sale.

Why Buy From Us?

✔ Tested & Certified Engines – Compression tested, leak-down checked, no hidden issues.
✔ Warranty Available – Optional coverage for peace of mind.
✔ Fast US Shipping – Get your engine quickly, no long waits.
✔ Expert Support – Help with compatibility, tuning, and installation.