2005-2012 Nissan Pathfinder 4.0L V6 DOHC Engine JDM VQ40DE

About this unit

Vehicle Fitment

This engine is a direct long-block replacement for the following North American R51 Generation models:

• Nissan Pathfinder: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012

• Trims: S, SE, LE, Off-Road, SV

• Chassis Cross-Compatibility: Also serves as a high-quality donor for 2005–2015 Nissan Frontier and 2005–2019 Nissan Xterra (4.0L models).

• Compatibility Note: This engine is for 4.0L V6 models only. Not compatible with the 5.6L V8 (VK56DE) or 2.5L Diesel variants.

JDM to USDM Installation & Swap Guide

To ensure 100% compatibility and a seamless “Plug-and-Play” installation into your USDM Pathfinder, professional installers recommend the following “External Swap” steps:

1. Intake & Exhaust Manifolds: You must transfer your original USDM Intake Manifold and Exhaust Manifolds. JDM versions may lack specific EGR ports or vacuum line configurations required for US emissions compliance.

2. Engine Sensors: Transfer your original USDM Camshaft Sensors, Crankshaft Sensor, and Knock Sensor to the JDM block to ensure the ECU receives signals it recognizes.

3. Wiring Harness: Always retain and use your original USDM Engine Wiring Harness. JDM harnesses are configured for right-hand drive and will not interface with your North American chassis.

4. Oil Pan & Pickup: Inspect the JDM oil pan; if your Pathfinder is 4WD, you must swap your original USDM Oil Pan and Pickup Tube to ensure proper clearance with the front differential and subframe.

5. Flywheel/Flexplate: Transfer your original flexplate (Automatic) or flywheel (Manual) to the JDM crankshaft to ensure proper starter engagement and crank sensor alignment.

6. Coolant Outlet: Swap your USDM rear coolant crossover pipe and heater hose outlets if the JDM angles differ.

What is included

You receive exactly what is pictured. Engines are supplied as a long block assembly with the components visible in the photos. Accessories such as the alternator, starter, intake manifold or sensors are included only where you can see them on the unit, so check the photographs before ordering and ask us if anything is unclear.

Before you order

• Confirm the engine code against your own vehicle, not just the model year.
• Japanese market units can differ from the US version in intake, loom and sensors.
• Replace the timing components, water pump and seals while the unit is out. It is cheap insurance on an engine this age.
• Keep your original accessories until the swap is finished and running.