2005-2019 Nissan Frontier 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 D40 Generation models:

• Nissan Frontier: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019

• Trims: S, SV, SL, PRO-4X, Desert Runner, SE, LE

• Chassis Cross-Compatibility: Also serves as a high-quality donor for 2005–2012 Nissan Pathfinder and 2005–2015 Nissan Xterra (4.0L models).

• Compatibility Note: This engine is for 4.0L V6 models only. Not compatible with the 2.5L QR25DE 4-cylinder or the 2020+ 3.8L models.

JDM to USDM Installation & Swap Guide

To ensure 100% compatibility and a seamless “Plug-and-Play” installation into your USDM Frontier, 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 have different vacuum line routing or lack specific emissions ports required for North American smog compliance.

2. Engine Sensors: Transfer your original USDM Camshaft Sensors, Crankshaft Sensor, and Knock Sensor to the JDM block to ensure the ECU receives familiar signals and prevents Check Engine Lights (CEL).

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 chassis or fuse box.

4. Oil Pan & Pickup: Inspect the JDM oil pan; if your Frontier 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. Water Outlet: Swap your USDM rear coolant crossover pipe and heater hose outlets if the JDM angles differ for your specific heater core lines.

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.