2004 Infiniti QX56 5.6L V8 (8 cylinder) VK56DE Used Engine
VIN-VERIFIED UNIT
✓ Actual photos of the exact unit you'll receive — not a stock image
✓ Confirmed Fitment — fits these vehicles
  • QX56 5.6L Vin A 4Th Digit Vk56De 2004
Enter your VIN below and we’ll confirm the exact fit before we ship.
Engine · Tested

2004 Infiniti QX56 5.6L V8 (8 cylinder) VK56DE Used Engine

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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 $4,323.00
$1,965.00
Mileage
Learn more →
✓ 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

Get your 2004 Infiniti QX56 running like new with this authentic 5.6L V8 engine

OEM 5.6L VK56DE V8 engine for 2004 Infiniti QX56 (VIN 4th digit A). Complete assembly restores original performance and reliability. Genuine VK-series V8 engineered for this flagship SUV model.

Engine Specifications:


Category Details
Displacement 5.6L V8
Engine Code VK56DE (VIN A)
Horsepower 315 HP
Torque 390 lb-ft
Fuel System Electronic Multi-Port Fuel Injection
Valvetrain DOHC 32-Valve with CVTCS
Block Material Aluminum Block & Heads
Emissions LEV Compliant
 

Compatibility: 2004 Infiniti QX56 4th VIN Digit A.

Pricing & Condition Options:

Mileage Range Price Condition
30K-60K Miles $ 1,965.00 Low mileage, excellent compression, well-maintained
60K-90K Miles $ 1,710.00 Strong runner, complete service history available
90K-120K Miles $ 1,450.00 Good condition, includes updated timing components
120K-150K Miles $ 1,310.00 Budget-friendly option for QX56 restoration
 

Key Features:

Complete Long Block Assembly: Package includes complete engine assembly with block, crankshaft, pistons, cylinder head, and full valvetrain components.

Smooth & Reliable: We guarantee that the engine will not smoke, leak or sound. It will be a good smooth runner.

Backed by Warranty: Warranty protection extends across the complete engine assembly, ensuring coverage against defects and manufacturing issues.

Shipping Information:

Standard shipping 5-7 business days

Expedited shipping are available for an extra cost 

Frequently Asked Questions?

Q: What are common maintenance items for these early VK56DE engines?

A: These robust engines may require attention to timing chain guides, exhaust manifold bolts, and occasional sensor issues all addressed in our reconditioning process.

Q: How does this first-generation VK56DE differ from later versions?

A: This initial design established the VK56 architecture that would be refined over subsequent years, featuring the core V8 performance that made the QX56 successful.

Q: Will this engine work with both 2WD and 4WD QX56 models?

A: This factory 5.6L VK56DE engine is compatible with all 2004 Infiniti QX56 drivetrain configurations, delivering uniform performance whether your vehicle is equipped with 2WD or 4WD systems.                                                                                                               

Ready to Order?

Ready to restore your QX56? Choose your mileage preference and proceed to checkout. Our Infiniti experts are available to confirm compatibility with your specific vehicle and assist with installation guidance.

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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