A Guide to Replacing Spark Plugs on Your 2014-2024 Nissan Pathfinder
Keep your Pathfinder's V6 engine running smoothly with the right aftermarket spark plugs.
- The official replacement interval is long (around 105,000 miles), but symptoms can appear sooner.
- Replacing the three rear spark plugs is difficult and requires removing the intake manifold.
- NGK and Denso are the OEM suppliers and are highly recommended for reliability.
- Always replace all six spark plugs at the same time to ensure balanced engine performance.
Is it Time for New Spark Plugs?
Worn-out spark plugs can cause a range of noticeable problems in your Pathfinder. If you experience a rough idle, where the engine shakes or vibrates more than usual, it could be a sign of a misfire caused by a bad plug. Other common symptoms include sluggish acceleration, a sudden drop in fuel mileage, and difficulty starting the engine. In many cases, a failing spark plug will trigger the Check Engine Light, sometimes flashing if the engine is actively misfiring.
The Challenge of the Rear Plugs
The V6 engine in your Pathfinder has three spark plugs that are easy to access at the front of the engine. However, the three rear plugs are located under the intake manifold. Replacing them requires removing this large component, which makes the job significantly more complex and time-consuming. 🎬 Watch this DIY guide for replacing Pathfinder spark plugs. Because of this difficulty, it's common for people to only change the front three, leaving the old rear plugs in place, which can lead to persistent engine problems.
Choosing the Right Aftermarket Spark Plugs
When shopping for new spark plugs, you'll find several types and brands. For the 2014-2024 Pathfinder, the original equipment (OEM) plugs are typically Iridium-type, made by NGK or Denso. These are designed for a long service life, often up to 105,000 miles.
- Top Tier (OEM-Equivalent): NGK and Denso are the most recommended brands for Nissan vehicles. Choosing their Iridium plugs is the closest you can get to the original factory part's performance and longevity. These are an excellent choice for reliability.
- Mid-Grade: Bosch offers Iridium and Platinum spark plugs that are a solid alternative. They provide good performance and durability, though some mechanics have historically preferred NGK or Denso for Japanese vehicles.
- Standard/Economy: Champion plugs are also available and are often more budget-friendly. While functional, many Nissan specialists and owners in forums recommend sticking with NGK or Denso for the Pathfinder, especially given the labor involved in changing the rear plugs.
Cost of Replacing Nissan Pathfinder Spark Plugs
| Part Type | Price Range (Set of 6) |
|---|---|
| New OEM (e.g., Nissan-branded NGK/Denso) | $125 - $215 |
| New Aftermarket (NGK, Bosch, Champion) | $48 - $177 |
| Shop Labor Cost | $250 - $500+ |
(Prices are estimates and may vary based on location, supplier, and specific product.)
Frequently Asked Questions
How often should I replace the spark plugs on my Pathfinder?
Nissan recommends replacing the spark plugs around every 105,000 miles for models using long-life Iridium plugs. However, if you experience symptoms of failure, you should have them checked sooner.
Can I replace just the three front spark plugs?
While technically possible, it is strongly advised against. The rear plugs wear out at the same rate. Not replacing them will likely lead to continued engine performance issues like misfires and poor fuel economy.
🎬 Follow this video tutorial for a complete spark plug replacement.Do aftermarket spark plugs need to be 'gapped'?
Most Iridium spark plugs from brands like NGK come pre-gapped from the factory for your specific vehicle. It's always a good idea to verify the gap with a feeler gauge before installation, but you should not attempt to adjust the gap on fine-wire Iridium plugs as the delicate electrode can be easily damaged.
Are there any recalls for Pathfinder spark plugs?
There are no specific recalls for spark plugs on the 2014-2024 Nissan Pathfinder. Searches of the National Highway Traffic Safety Administration (NHTSA) database show recalls for other issues like airbags and seatbelts, but none directly related to spark plugs.
Helpful Videos
Technical Specifications
OEM Part Numbers: 22401-EW61C 22401-ZE01B
For the 3.5L V6 engine, the recommended spark plug type is Iridium. The spark plug socket size is typically 14mm. Most quality aftermarket plugs come pre-gapped.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Nissan Pathfinder: