The BMW N63 twin-turbocharged V8 is the engine behind BMW’s most refined full-size sedans, coupes, and SUVs — a 4.4-liter masterpiece of hot-vee forced induction that delivers performance and refinement in equal measure. This used BMW N63 engine is a genuine OEM unit sourced from low-mileage donor vehicles and inspected before shipment. Found in the 550i, 650i, 750i, X5 50i, and X6 50i, the N63 produces between 400 and 445 horsepower depending on the application. Replace yours with the factory performance it deserves.
Features
Tested Engine with Warranty
Hassle-Free Returns Available
Live Customer Support
Direct Fit for Your Vehicle
The BMW N63 Engine is twin-turbo V8 built for performance, efficiency, and smooth driving. Its advanced technologies, including direct injection, Double-VANOS, Valvetronic, and a unique Hot-V turbo layout, produce between 400 and 600 horsepower, depending on the variant and tuning. It runs on premium fuel and pairs with either a 6-speed or 8-speed automatic transmission. Known for its quick throttle response and strong performance, this engine offers seamless acceleration for all your driving needs. The engine is well-balanced and generates minimal vibration, ensuring a comfortable driving experience across multiple applications. The N63 comes in multiple improved versions: N63, N63TU, N63TU2, and N63TU3, each offering enhanced reliability and power.
N63 engine fitment is application-specific and generation-critical. The N63B44O0 first generation used from 2008–2012 differs substantially from the N63B44O1 and TU variants in turbocharger design, engine oil management, and valve timing. Different applications — 5 Series, 6 Series, 7 Series, X5, X6 — use different oil pan designs and accessory configurations. Our VIN verification and application cross-reference process identifies the exact N63 variant and generation for your specific vehicle before it ships.
BMW N63 engine work at specialist rates is among the most expensive repair categories in the premium segment — the hot-vee architecture requires specialized tooling and significant disassembly time that drives labor cost well beyond equivalent naturally aspirated engine repairs. Choosing a used BMW N63 engine is the most cost-effective way to restore the factory twin-turbo V8 performance your vehicle was built around. A used OEM BMW N63 engine gives you factory Bavarian V8 engineering at a known price — the same horsepower, the same torque curve, the same refinement — restored properly.
Every used engine ships with up to a 90-day warranty and arrives within 2 to 5 business days. Installation is not included. We strongly recommend a BMW-authorized service center or a specialist independent European shop for this application. These are genuine BMW OEM engines, and we stand behind every unit.Check out at BMW official website.
Specifications
Product Type
Engine
Displacement (Engine Size)
4.4L Twin-Turbocharged V8
Fuel Type
Gasoline
Availability
In Stock
Shipping
Nationwide Available
Use Case
Ideal for upgrades or replacements
Frequently Asked Questions
Is the 2001 N63 4.4L a good engine?
Generally, the 2001 N63 4.4L is not considered a reliable engine, as it faces issues such as excessive oil consumption, timing chain problems, and fuel injector failures.
What is the life expectancy of the BMW N63 engine?
The BMW N63 engine typically lasts between 150,000 to 200,000 miles with proper maintenance. However, known issues such as oil consumption and valve stem wear can affect its lifespan if not addressed promptly.
What engine replaced the N63?
The BMW N63 engine was replaced by the newer S68 mild-hybrid V8 starting in 2022. The S68 offers better efficiency, lower emissions, and improved performance.
How much does a BMW N63 engine replacement cost?
A BMW N63 engine replacement can cost anywhere from $6,000 to $25,000 or more, depending on whether you opt for a new, remanufactured, or used engine, as well as the associated labor costs.
How much HP can an N63 handle?
The N63 can handle up to 600-650 horsepower depending in the trim level and model year.
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Shipping Policy
Our shipping policy is flexible, as the shipping charges depend on the location. A few certain remote regions like CO, UT, NY, OR, & CA may have additional shipping charges or delivery fees. However, some circumstances may cause delays, but we always strive to deliver your order as quickly as possible.
Please note that all shipping times are estimates and not guaranteed. We examine all rebuilt and used engines before shipment and aim to provide high-quality used engines and transmissions. Shipping details and fees will be disclosed to consumers before any transactions are made. Our team is operational 24/7, and you can call us at +1-888-799-0188 to place an order.
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