The Nissan VQ40DE is a 3,954 cc, 60‑degree V6 petrol engine produced between 2005 and 2020. It features an aluminium block and heads, DOHC valvetrain with 24 valves total, and electronic fuel injection. This naturally aspirated engine delivered 193–202 kW (261–275 PS) and 381–394 Nm of torque, engineered for strong, linear power delivery and smooth operation across its rev range.
Fitted to models such as the Frontier (D40), Xterra (N50), and Pathfinder (R51), the VQ40DE…
Production years 2005–2020 meet applicable emissions standards for their respective model years and markets (VCA UK Type Approval records for relevant chassis codes).
The Nissan VQ40DE is a 3,954 cc 60-degree V6 petrol engine engineered for mid-size SUVs and trucks (2005-2020). It combines dual overhead camshafts with electronic sequential fuel injection to deliver strong, linear torque and smooth, refined power. Designed to meet evolving emissions standards over its lifespan, it prioritizes durability and responsive performance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,954 cc | |
Fuel type | Petrol | |
Configuration | 60° V6, DOHC, 4 valves per cylinder | |
Aspiration | Naturally aspirated | |
Bore × stroke | 95.5 mm × 92.0 mm | |
Power output | 193–202 kW (261–275 PS) @ 5,600 rpm | |
Torque | 381–394 Nm @ 4,000 rpm | |
Fuel system | Electronic sequential multi-point fuel injection | |
Emissions standard | Applicable standards for model year (e.g., US Federal Tier 2, Japanese) | |
Compression ratio | 9.7:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven (dual primary chains) | |
Oil type | API SM/SN, SAE 5W-30 | |
Dry weight | 182 kg |
The Nissan VQ40DE was used across Nissan's D40/R51/N50 platforms with longitudinal mounting. This engine received minor ECU and emissions updates over its lifespan, but core mechanical components remained largely consistent, ensuring broad parts interchangeability within its production run. All adaptations are documented in OEM technical bulletins.
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The VQ40DE's primary reliability risk is excessive oil consumption in early production models, with elevated incidence in vehicles with high annual mileage. Nissan TSB NTB06-140 documents this as a known issue for specific VIN ranges, while owner reports frequently cite oil level warnings and exhaust smoke. Regular oil level checks and using the correct specification oil make timely intervention critical.
Analysis derived from Nissan technical bulletins (2005-2020) and aggregated owner-reported failure data (2010-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Generally, yes. The VQ40DE is a very strong and durable engine when properly maintained. Its main long-term concern is oil consumption in early models (2006-2010), which Nissan addressed with a TSB. Outside of this, with regular oil changes and cooling system care, these engines are known to reliably exceed 300,000 km.
The most frequent issues are excessive oil consumption (early models), timing chain tensioner rattle, IMRC actuator failures causing check engine lights, and coolant leaks from the water pump or thermostat housing. These are well-documented in Nissan service bulletins and forums.
The VQ40DE was used in the Nissan Frontier/Navara (D40, 2005-2020), Xterra (N50, 2005-2015), and Pathfinder (R51, 2005-2012). It was the standard V6 petrol engine for these rugged SUV and truck platforms throughout its production run.
Yes, moderately. Basic bolt-ons like a cold air intake, performance exhaust, and ECU tune can yield 15-25 kW gains. More significant power requires internal modifications. Its strength is torque and reliability, making it popular for off-road and towing applications where low-end grunt is key.
Fuel economy is typical for a large, naturally aspirated V6 in a truck/SUV. Expect approximately 14-16 L/100km (15-17 mpg UK) in city driving and 11-13 L/100km (18-21 mpg UK) on the highway, depending on the vehicle, drivetrain, and driving conditions.
Yes. The Nissan VQ40DE is an interference engine. This means if the timing chain were to fail or jump significantly, the pistons can contact the valves, causing severe internal engine damage. This underscores the importance of addressing any timing chain rattle promptly.
Nissan specifies SAE 5W-30 engine oil meeting API SM or SN (or newer) standards. High-quality conventional or full synthetic oils are suitable. For vehicles experiencing oil consumption, using a high-mileage synthetic 5W-30 is often recommended. Change intervals should be every 5,000-10,000 km.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
NISSAN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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