Parts for your 2019 Nissan Pathfinder-Ignition coils

2019 Nissan Pathfinder ignition coils — what they do and how to look after them

Ignition coils are absolutely relevant on the 2019 Nissan Pathfinder. Technical sources including the Nissan Factory Service Manual (R52, VQ35DD petrol engine, EC/EM sections) identify six coil-on-plug units, one per cylinder, and the official Nissan parts catalogue lists individual ignition coil assemblies for this model. Major aftermarket catalogues (e.g., NGK, Hitachi) also publish compatible coil listings for the 2019 Pathfinder V6. Because the 2019 Pathfinder uses a spark-ignited petrol VQ35DD engine, it relies on ignition coils to fire the spark plugs—diesel-style systems without coils are not used here.

On the 2019 Pathfinder, each ignition coil sits directly on top of a spark plug. Their job is to transform the 12-volt battery supply into the high voltage needed to jump the plug gap and ignite the fuel-air mix. When coils are healthy, the VQ35DD runs smoothly, sips fuel sensibly, and pulls strongly. When one starts to fade, expect rough idle, hesitation, a flashing check engine light, or logged fault codes such as P0300–P0306.

Coils aren’t a scheduled-servicing item, but they live a hard life. Heat, oil contamination, worn spark plugs, or moisture under the bonnet can shorten their lifespan. Best practice on a Pathfinder is to replace spark plugs at the recommended interval (typically around 160,000 km for iridium) and inspect the coils at the same time. If a single cylinder is misfiring and diagnostics point to a dud coil, it’s fine to replace just that one, however, at higher mileage many owners choose to replace all six to keep things even.

• Symptoms that suggest a coil issue:
  • Rough idle, loss of power, or poor fuel economy
  • Hard starts or hesitation under load
  • Check engine light with misfire codes
• Good maintenance habits:
  • Keep to the spark plug interval to reduce coil stress
  • Avoid blasting the engine bay with water, moisture can track into coil boots
  • Fix rocker/valve cover gasket leaks so oil doesn’t pool in plug wells

When fitting new coils, use quality parts that meet OE spec, ensure the plug wells are dry and clean, and apply a light smear of dielectric grease inside the boots. Refit the hold-down bolts to the factory torque (Nissan workshop documentation specifies approximately 8–9 N·m). After installation, clear fault codes and road test to confirm a smooth, misfire-free run.

Popular questions about 2019 Nissan Pathfinder ignition coils

How long do the factory coils usually last?
There isn’t a fixed replacement interval in Nissan’s maintenance schedule. Many coils last well past 160,000 km, especially if the spark plugs are replaced on time. Heat, high kilometres, and oil or moisture exposure are the main factors that bring them undone sooner.

Can just one faulty coil be replaced, or should all six be done?
It’s acceptable to replace a single failed coil identified by diagnostics. If the vehicle has high kilometres or multiple coils show intermittent faults, replacing the full set can save repeat labour and keep the engine running evenly.

Is it safe to keep driving with a misfire from a bad coil?
Not recommended. Driving while misfiring can overheat and damage the catalytic converters and may wash fuel past the rings, diluting engine oil. It’s best to diagnose the fault promptly and sort the coil or spark plug before further damage occurs.