Engine · Tested

BMW X5 4.4L, 456 HP (50iX) 4.4L Engine (2019-2020)

4.5 on Trustpilot · 335 reviews
Confirm it fits YOUR vehicleEnter your VIN — we verify exact fit before you pay
Find your VIN on the driver-side door jamb or lower windshield.
Unit Condition & Specs
AvailabilityIn stock — ready to ship
55% OFF $51,480.00
$23,400.00
Mileage
✓ Flat-rate freight — insured & tracked ·✓ 90-day warranty included· freight shown at checkout: $250 commercial / $400 residential
Ships within 3 - 5 business days Approx - flat-rate freight, tracked & insured Most orders arrive 5–7 business days after dispatch (US). You get tracking the moment it ships.
Not sure it fits? Call an expert
🛡90-Day WarrantyParts replacement
🚚Flat-Rate FreightDelivered to your door
🔒Secure CheckoutEncrypted payment
24-Hr Free CancelFull refund within 24h

How ordering works

  1. 1Enter or confirm your VIN
  2. 2We verify exact fitment for your vehicle
  3. 3Flat freight shown up front — no surprises
  4. 490-day warranty included on every part
  5. 5We photograph & confirm the unit before it ships
What you're getting

What's included with this engine

You're buying a complete engine assembly — not a bare block. Here's exactly what arrives bolted to it, and the handful of accessories your mechanic moves over from your current engine during the install.

Included with your engine

Already assembled — ships as one unit
  • Long block — fully assembled
  • Short block
  • Cylinder head
  • Crankshaft
  • Camshaft
  • Pistons
  • Intake manifold
  • Exhaust manifold
  • Oil pan
  • Timing cover

Not included — transfer these over

Reused from your current engine
  • Wiring harness
  • Bolt-on accessories
Why these aren't included: these parts are tied to your vehicle's exact trim and options, and the ones already on your current engine are almost always in good working order. Your mechanic transfers them across during the install — that's standard practice on an engine replacement, and it keeps your price down.
Quick definition: a short block is the block, crankshaft, camshaft and pistons. A long block adds the cylinder head and valvetrain. A complete engine — what you're buying here — is the long block with the intake manifold, exhaust manifold, oil pan and timing cover already fitted.
Not sure what your install needs? Talk to a parts expert
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Part details

About this part

Restore Your BMW X5 with a 4.4L V8 Engine (2019-2020, 50iX)

Restore your 2019-2020 BMW X5 xDrive50i using the 4.4L N63B44T3 Machine (AWD). The twin-turbocharged high-performance machine is designed to create explosive power, premium refinement, and BMW reliability, perfect for restoring or upgrading your BMW X5. Whether as a replacement of a worn-out machine or improving performance, the machine is engineered to exceed expectations.

Engine Details:

Category Specifications
Displacement 4.4L
Energy Type Premium Gasoline
Power 456 HP
Drivetrain xDrive (AWD)
Torque 479 lb-ft

                                                                                              Compatibility:

BMW X5 xDrive50i (2019-2020) with 4.4L N63B44T3 Machine. Must verify 6th VIN digit.

Why Choose This Machine?

Twin-Turbocharged: Power produces 456 HP and 479 lb-ft of torque for breath-taking acceleration and commanding performance.

BMW Engineering: Precision-crafted with VALVETRONIC and Double-VANOS technologies for seamless power delivery.

Enhanced Reliability: TU3 version features upgraded timing components and cooling systems.

Cost-Effective: An affordable way to revive your X5's performance without dealer prices.

Pricing Options:

We price based on the mileage of the machine you select. Choose the option that best fits your needs:

 <30,000 Miles

Price: $23,400.00

The premium choice with like-new condition and full service history.

30,000 to 60,000 Miles

Price: $21,112.00

Best balance of performance and value for discerning owners.

60,000 to 90,000 Miles

Price: $20,150.00

Ideal for performance seekers wanting great value.

90,000 to 120,000 Miles

Price: $19,498.70

Budget-friendly solution for restoration projects.

Key Features:

Advanced Twin Power Turbo Technology: Merges cutting-edge turbocharging with BMW's legendary engineering.

Thoroughly Tested: Every engine undergoes comprehensive diagnostics and inspection.

Factory Fitment: Designed for exact installation in compatible X5 models.

Shipping Information:

  • Weight: 550 lbs (boxed)

  • Dimensions: 42" L x 32" W x 36" H

Shipping Options:

  • Standard Shipping: Ships from the U.S. continental.

  • Expedited Shipping: Available for faster delivery with an extra cost.

Frequently Asked Questions:

Q: Does the engine come with a warranty?

A: Yes, all our engines come with a 60-day warranty, covering any manufacturing defects.

Q: How do I verify compatibility?

A: Confirm your X5's 6th VIN digit, and locate the "N63B44T3" engine code on the valve cover.

Q: What if the engine doesn't fit my vehicle?

A: We offer a 60-day return policy for incompatible purchases - contact us for assistance.

Ready to Upgrade Your BMW X5?

Experience the perfect combination of BMW luxury and performance. Choose the 4.4L N63 engine for your 2019-2020 X5 xDrive50i with our mileage-based pricing options.

Order with confidence

Tested, VIN-matched, and guaranteed

VIN-Verified Fit

We match the part to your vehicle's VIN and confirm exact fitment before we ship — so it fits the first time. Free cancellation within 24 hours.

Works on Arrival, Guaranteed

Every unit is tested before it ships. If it arrives defective, we replace it fast — and in the rare case we can't replace it, you get a full refund.

90-Day Warranty

A real parts-replacement warranty, included — with extended coverage available.

Real photos of the exact unitWhat you see is what ships
A-grade OEM, testedVerified specs, not estimated
VIN-matched to your vehicleConfirmed before dispatch
Shipping & delivery

Heavy freight item, shipped fully insured and tracked. Freight is a flat $250 commercial / $400 residential, shown at checkout — no hidden fees, no freight-quote runaround.

1Ships within 3 - 5 business days ApproxCarefully packed & dispatched from our US warehouse
2Freight to your doorBrought to your door
3Delivered in 5–7 business daysTracked & insured · tracking sent when it ships
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