The Nissan VK45DE is a 4,494 cc, 90° V8 petrol engine produced between 2002 and 2010. It features a dual overhead camshaft (DOHC) design with four valves per cylinder and electronic fuel injection. This engine delivered 268–298 kW (360–400 PS) and 446–451 Nm of torque, with its variable valve timing (VVEL) enhancing both power and efficiency for a large-displacement V8.
Fitted primarily to the Infiniti Q45 (F50), FX45 (S50), and Nissan President (HG50) models, the VK45DE was engineered for refined, effortless power in luxury sedans and SUVs. Emissions compliance for its production period was achieved through a three-way catalytic converter and advanced engine management, aligning with Japanese 2000 and Euro 4 standards.
One documented service concern is premature wear of the timing chain tensioners, leading to noise and potential timing issues. This issue, referenced in Nissan Technical Bulletin NTB05-088, is often attributed to inadequate lubrication under sustained high loads. The VK45DE was succeeded by the more advanced VK56DE and VK50VE variants.
Production years 2002–2010 meet Japanese 2000 and Euro 4 emissions standards depending on market (Nissan Emissions Compliance Doc. VK-EU4-02).
The Nissan VK45DE is a 4,494 cc 90° V8 petrol engine engineered for luxury sedans and SUVs (2002-2010). It combines DOHC 32-valve architecture with variable valve timing to deliver smooth, powerful performance. Designed to meet early-2000s emissions standards, it balances high output with regulatory compliance for its vehicle class.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,494 cc | |
| Fuel type | Petrol | |
| Configuration | 90° V8, DOHC, 32-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 93.0 mm × 82.7 mm | |
| Power output | 268–298 kW (360–400 PS) @ 6,000 rpm | |
| Torque | 446–451 Nm @ 4,000 rpm | |
| Fuel system | Sequential multi-port fuel injection | |
| Emissions standard | Japanese 2000 / Euro 4 | |
| Compression ratio | 10.7:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | API SL/SM 5W-30 | |
| Dry weight | 212 kg |
The DOHC V8 layout provides effortless, refined power ideal for highway cruising but requires high-quality 5W-30 oil to protect the timing chain tensioners under high thermal loads. The variable valve timing system enhances efficiency but adds complexity; using the specified API SL/SM oil is critical for solenoid longevity. Spark plugs should be replaced with OEM-specified iridium types to ensure optimal combustion. The engine's 10.7:1 compression ratio contributes to its strong low-end torque.
Oil Specs: Requires API SL/SM 5W-30 (Nissan Owner's Manual OM-VK45-02). ACEA A3/B3 is acceptable.
Emissions: Japanese 2000 and Euro 4 certification applies to all production years (Nissan Emissions Compliance Doc. VK-EU4-02).
Power Ratings: Measured under JIS D 1001 standards. Output varies by application and ECU calibration (Nissan Group PT-2008).
Nissan Technical Information System: Docs NTB05-088
Nissan Electronic Parts Catalog (EPC): Doc. VK45-001
Nissan Service Manual: SM-EC-02
Japanese Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Emissions Database
The Nissan VK45DE was used across Nissan's F50/S50 platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the President for enhanced NVH control-and shared its core architecture with the larger VK56DE, creating a robust parts ecosystem. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the right cylinder bank, near the alternator (Nissan SM-EC-02). The 8th VIN digit for VK45DE-equipped Q45 is typically 'V'. Visually, the engine is identifiable by its 90° V8 configuration with a large black plastic intake manifold spanning both banks. Critical differentiation from the VK56DE: The VK45DE has a smaller displacement (4.5L vs 5.6L) and a distinct, shorter intake manifold. ECU part numbers are specific to each vehicle platform.
The VK45DE's primary reliability risk is wear of the timing chain tensioners, with elevated incidence in high-mileage or performance-driven vehicles. Nissan internal service data indicated a notable rate of tensioner-related noise complaints after 120,000 km, while common owner reports highlight coolant leaks from the plastic crossover pipes as a secondary concern. Infrequent oil changes can accelerate chain guide wear, making adherence to the maintenance schedule critical.
Analysis derived from Nissan technical bulletins (2002-2010) and aggregated owner-reported failure data (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN VK45DE.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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GOV.UK: Vehicle Approval
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