Parts for your 2007 Nissan Pathfinder-Spark plugs

2007 Nissan Pathfinder Spark Plugs

Based on technical references including the Nissan R51 Pathfinder Factory Service Manual (Ignition Control and Engine Mechanical sections) and the 2007 Owner’s Manual, spark plugs are fitted to 2007 Pathfinders with the 4.0‑litre VQ40DE petrol V6, while the 2.5‑litre YD25DDTi turbo‑diesel does not use spark plugs (it uses glow plugs and compression ignition). So, spark plugs are relevant for the petrol variant and not applicable to the diesel.

For the 4.0‑litre petrol V6, spark plugs are the small but crucial parts that ignite the air‑fuel mix in each cylinder. Good plugs help the engine start cleanly, idle smoothly, pull strongly when overtaking or towing, and keep fuel use and emissions in check. Worn plugs can lead to hard starts, a lumpy idle, sluggish performance and higher consumption—things any Pathfinder owner would rather avoid.

Nissan specifies long‑life platinum/iridium plugs for the VQ40DE, with a typical replacement interval around 160,000 km under normal conditions, as outlined in Nissan service schedules for this engine family. Many workshops recommend inspecting them earlier—about every 40,000–50,000 km—especially if the vehicle does a lot of short trips, heavy towing, dusty touring, or spends time idling. The factory plug gap is usually set at about 1.1 mm on the correct OEM‑type plugs, fine‑wire iridium/platinum designs should not be re‑gapped with force. On refit, a common specification is to torque them to roughly 18 N·m on a cold engine and avoid anti‑seize on modern nickel‑plated threads (as per NGK and Nissan guidance). A light smear of dielectric grease on coil boots helps future removal and guards against moisture.

The VQ40DE uses six coil‑on‑plug units—one per cylinder. Access is straightforward on most cylinders, though rear plugs can be tighter for space. Using the correct heat range and matching all six plugs as a set keeps the engine’s behaviour consistent. Owners who notice any of the following should have the plugs and coils checked sooner rather than later:

• Misfires or a shaky idle
• Sluggish acceleration, especially under load
• Poor fuel economy or a strong fuel smell
• Hard starting when cold

For diesel 2007 Pathfinders, spark plugs aren’t used at all—the YD25DDTi relies on high compression to ignite diesel fuel, with glow plugs only assisting cold starts. Servicing on those models targets glow plugs and injectors instead of spark plugs.

Popular questions about 2007 Nissan Pathfinder spark plugs

Does a 2007 Pathfinder have spark plugs?
Petrol V6 models (VQ40DE) have six spark plugs—one per cylinder. Diesel models (YD25DDTi) don’t use spark plugs, they use glow plugs for cold starts. The engine code on the build plate or the fuel type in the Owner’s Manual will confirm which applies.

How often should spark plugs be replaced on the V6?
With long‑life iridium/platinum plugs, many service schedules put replacement at about 160,000 km. In tougher Aussie and Kiwi conditions—towing, off‑road dust, frequent short trips—earlier inspection and potential replacement can be smart insurance.

What plug type, gap and torque are recommended?
Use OEM‑spec iridium/platinum plugs (for example, the factory NGK equivalent for the VQ40DE). The gap is typically preset around 1.1 mm and shouldn’t be forced smaller or larger on fine‑wire plugs. Fit them to about 18 N·m on a cold engine, avoid anti‑seize, and apply a touch of dielectric grease to the coil boots.