Parts for your 2020 Nissan Pathfinder-Spark plugs

2020 Nissan Pathfinder spark-plugs

Technical sources confirm the 2020 Nissan Pathfinder does use spark-plugs. The model runs Nissan’s 3.5‑litre V6 petrol (VQ35DD) with direct injection and coil‑on‑plug ignition, which requires six iridium spark-plugs. Nissan’s 2020 Pathfinder Owner’s Manual and Service/Maintenance Schedule specify spark-plug replacement at around 105,000 miles (168,000 kilometres), and the factory workshop manual details inspection and replacement procedures for the plugs fitted to this engine.

For this Pathfinder, spark-plugs do the critical job of igniting the air–fuel mix in each cylinder at precisely the right moment. Even with modern direct injection and smart engine control, good plugs are essential for smooth idle, solid throttle response, efficient fuel burn and lower emissions. With iridium-tipped plugs from the factory, the V6 is set up for long life and consistent performance between major services.

As part of routine servicing, spark-plug checks are a smart move once the odometer climbs, especially in local stop–start or towing conditions common across Australia and New Zealand. While the official interval is long, shorter inspection intervals can pick up early signs of wear or fouling that affect economy and drivability. The plugs are designed with a fine tip and a specific gap, on quality iridium plugs the gap is factory-set and generally shouldn’t be adjusted.

Signs the Pathfinder’s spark-plugs may need attention include:

• Hard starting, rough idle or a noticeable misfire under load
• Higher fuel use and sluggish acceleration
• Engine light with misfire codes (e.g., P030X)

When replacement time arrives, reputable iridium plugs to the correct heat range and specification should be used. A technician will remove the engine cover, unplug each coil, and replace the plugs one bank at a time, checking for oil or coolant in the plug tubes that could hint at other issues. Anti‑seize isn’t recommended on most modern, plated plugs, threads should go in clean and be tightened to the torque specified by Nissan. Coils and boots should be inspected for cracking, and a light application of dielectric grease on the inside of the boots can help future removal and reduce tracking.

Kept in good nick, the Pathfinder’s spark-plugs help the V6 run smoothly, deliver reliable power for family trips and towing, and keep fuel bills in check over long Kiwi and Aussie kilometres.

Popular questions about 2020 Nissan Pathfinder spark-plugs

How often should spark-plugs be replaced on a 2020 Pathfinder?
According to Nissan’s maintenance schedule, the iridium spark-plugs are due at roughly 105,000 miles (168,000 kilometres). In harsher use—frequent short trips, dust, heat or towing—earlier inspection can be worthwhile to maintain performance and economy.

What type of spark-plugs should be used?
Use OEM‑equivalent iridium plugs in the correct heat range for the VQ35DD engine. Sticking with the factory style ensures proper combustion, longevity and compatibility with the coil‑on‑plug system and the engine management calibration.

Do the spark-plugs need gapping?
Quality iridium plugs come pre‑gapped to specification and the fine-wire tips are delicate. The best practice is to verify the gap with a feeler gauge and avoid bending the electrode. If the gap is off, replace the plug rather than forcing an adjustment.