The Nissan VK56DE is a 5,552 cc, 90-degree V8 naturally aspirated petrol engine produced from 2003 to 2020. It features a dual overhead camshaft (DOHC) design with 32 valves and Nissan's Variable Valve Event and Lift (VVEL) system on later variants. This engine was engineered for robust torque delivery and smooth, linear power in large SUVs and trucks, prioritizing durability over peak horsepower.
Fitted primarily to the Armada, Titan, Patrol, and Navara (in select markets), the VK56DE was designed for towing and off-road capability. Emissions compliance for its era was managed through precise electronic fuel injection and, on later models, variable valve timing, meeting US EPA Tier 2 Bin 5 and equivalent global standards for its production period.
One documented engineering focus was managing oil consumption and piston ring wear under heavy load, addressed in a running change documented in Nissan Technical Service Bulletin NTB09-114. This update involved revised piston ring design and material to improve sealing and reduce oil usage, particularly in vehicles used for sustained towing.
Production years 2003–2020 meet applicable US EPA Tier 2 Bin 5 and equivalent global emissions standards for the period (EPA Certification).
The Nissan VK56DE is a 5,552 cc 90-degree V8 naturally aspirated petrol engine engineered for full-size trucks and SUVs (2003-2020). It combines DOHC 32-valve architecture with electronic fuel injection to deliver substantial low-end torque and towing capacity. Designed to meet contemporary US and global emissions standards, it emphasizes mechanical robustness for demanding applications.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 5,552 cc | |
| Fuel type | Petrol | |
| Configuration | V8, DOHC, 32-valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 98.0 mm × 92.0 mm | |
| Power output | 298–317 kW (400–425 PS) | |
| Torque | 545–560 Nm @ 3,600 rpm | |
| Fuel system | Sequential Multi-Point Fuel Injection (MPI) | |
| Emissions standard | US EPA Tier 2 Bin 5 / Equivalent Global | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | 5W-30 API SN or equivalent | |
| Dry weight | 245 kg |
The V8 architecture provides effortless torque for towing and hauling but demands regular maintenance to ensure longevity. Using high-quality 5W-30 oil meeting API SN (or newer) standards is critical, especially under heavy loads, to protect the chain-driven valvetrain and bearings. The engine is known for potential oil consumption; owners should monitor levels between changes. Revised piston rings (post-TSB NTB09-114) mitigate this issue. Coolant system integrity is vital for sustained high-load operation.
Oil Specs: Requires 5W-30 viscosity meeting API SN or ILSAC GF-5 (Nissan Service Manual SM-EN-VK56). Synthetic oil is recommended for severe service.
Emissions: Meets US EPA Tier 2 Bin 5 and equivalent global standards for its production period (EPA Certification).
Power Ratings: Measured under SAE J1349 standards. Power figures vary slightly by model year and application (Nissan Group PT-2015).
Nissan Technical Information System (TIS): Docs SM-EN-VK56, NTB09-114
Nissan Electronic Parts Catalogue (EPC): Doc. VK56-001
US Environmental Protection Agency (EPA) Certification Database
SAE International: J1349 Engine Power Certification Standards
The Nissan VK56DE was used across Nissan's full-size truck and SUV platforms with longitudinal mounting. This engine received platform-specific adaptations-unique engine mounts and accessory drives for the Titan/Patrol versus the Armada-and no major facelift revisions that altered core compatibility. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the left cylinder block, near the timing cover (Nissan TIS SM-EN-VK56). The 8th digit of the VIN for Titan/Armada is typically 'V' for VK56DE. Visually, it is a large V8 with a prominent intake manifold spanning the valley. Critical differentiation from VK50VE: VK56DE has a larger displacement (5.6L vs 5.0L) and lacks the VK50VE's VVEL system. Engine mounts and transmission bellhousing patterns are specific to the Titan/Armada/Patrol chassis.
The VK56DE's primary reliability consideration is managing potential oil consumption and ensuring cooling system integrity under heavy load. Nissan technical bulletins document elevated oil usage in early builds, addressed by TSB NTB09-114, while owner data suggests radiator and water pump failures are common after 150,000 km. Sustained towing without adequate cooling or infrequent oil changes accelerates wear.
Analysis derived from Nissan technical bulletins (2003-2020) and aggregated owner maintenance logs. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN VK56DE.
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Regulation (EC) No 715/2007
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