Parts for your 2017 Nissan Pathfinder-Spark plugs

2017 Nissan Pathfinder Spark Plugs

Yes, spark plugs are absolutely relevant for the 2017 Nissan Pathfinder. Technical references including the Nissan service manual, the owner’s maintenance schedule, and NGK/DENSO parts catalogues confirm the 2017 Pathfinder (R52 Series II) runs a petrol VQ35DD 3.5‑litre V6 with coil‑on‑plug ignition and six iridium spark plugs. There’s no diesel option for this model year in AU/NZ, so spark plugs are a core service item.

On this Pathfinder, spark plugs ignite the air–fuel mix inside each cylinder, helping the V6 fire cleanly, start easily in cold weather, and sip fuel rather than guzzle it. The factory‑specified iridium plugs handle the higher temperatures and pressures of direct injection, resist wear for ages, and help keep emissions in check. When they’re healthy, drivers notice smooth idle, crisp throttle response, and better fuel economy around town and on the open road.

For routine servicing, the recommended replacement interval for the iridium plugs is typically around 160,000 km (about 100,000 miles), but it’s smart to confirm against the Pathfinder’s service schedule. Short‑trip, dusty, or hot‑climate driving can bring that forward. If the plugs are on the way out, tell‑tales include a rough idle, hesitation on take‑off, misfire under load, higher fuel use, or harder starts.

• Always use OEM‑equivalent iridium plugs matched to the VQ35DD’s heat range and reach.
• Replace all six at the same time, inspect coils and boots for cracks or tracking.
• Tighten to the specified torque (about 18–22 N·m, check the service manual for the exact figure).
• Modern iridium plugs are pre‑gapped—avoid bending the fine centre electrode.

Access on the front bank is straightforward, the rear bank may require removal of the upper intake manifold/plenum on this transverse V6. That’s why many owners get a trusted workshop to handle the job during a scheduled service. Fresh intake gaskets, a clean work area, and a stone‑cold engine go a long way to a trouble‑free plug swap. Keep the service record up to date and the Pathfinder’s V6 will stay lively, efficient and ready for family duties, towing, and road trips alike.

Popular questions about 2017 Nissan Pathfinder spark plugs

How often should spark plugs be replaced on a 2017 Pathfinder?
Most owners will be right to plan replacement at around 160,000 km. If the vehicle tows frequently, does short trips, or runs in dusty or very hot conditions, bring that forward. Always confirm against the maintenance schedule for the exact interval.

What type of spark plugs does it use?
The VQ35DD uses long‑life iridium plugs matched to the engine’s heat range and thread/reach. Nissan OEM‑spec (often NGK or DENSO) is recommended. Use the VIN to confirm the exact part in a trusted parts catalogue or with a dealer to avoid mismatches.

Can this be a DIY job?
Yes for experienced DIYers with the right tools (including a 14 mm thin‑wall spark plug socket and torque wrench). However, accessing the rear bank may require removing the upper intake manifold, new gaskets, and careful torque procedures. If that’s not your comfort zone, a professional service is the safer bet.