Ignition Coil & Iridium Spark Plugs for Nissan Xterra (2005-2015) 4.0L V6

Direct-Replacement Ignition Coils & Iridium Spark Plugs for 2005-2015 Nissan Xterra

Restores proper combustion and engine performance for the VQ40DE engine: This comprehensive ignition service kit replaces failing factory coils and worn spark plugs to cure misfires, rough idling, and hesitation under heavy load.

The Stock Xterra Ignition Degradation

The factory ignition coils on the N50-generation Xterra are highly susceptible to thermal breakdown over extended mileage. Located deep within the engine bay, the VQ40DE ignition system experiences continuous extreme heat soak cycles. Over time, the internal epoxy potting within the OEM coils degrades, leading to micro-cracks in the housing. This breakdown compromises secondary voltage output, causing intermittent misfires, increased emissions, and sluggish throttle response. Additionally, factory standard spark plugs gradually suffer from electrode erosion, widening the spark gap and forcing the degrading ignition coils to work even harder to bridge the gap, which ultimately accelerates total ignition failure.

The Engineering Solution

This comprehensive six-pack of upgraded ignition coils and high-performance iridium spark plugs provides a permanent mechanical fix for the VQ40DE. The replacement coils are manufactured with high-dielectric epoxy and heavy-duty copper windings to maximize energy transfer and eliminate voltage leaks under heavy operating loads. The reinforced polymer housings resist the thermal shock and mechanical vibration common in rigorous off-road environments. Paired with the ultra-fine wire iridium center electrodes of the included spark plugs, this kit is designed to ensure a concentrated, consistent spark. The iridium material drastically reduces the required firing voltage, relieving stress on the coils while ensuring complete fuel vaporization for restored power and optimal efficiency.

Technical Specifications

Compatibility

• 2011-2015 Nissan Xterra PRO-4X (4.0L V6)
• 2005-2015 Nissan Xterra S (4.0L V6)
• 2006-2015 Nissan Xterra X (4.0L V6)
• 2005-2010 Nissan Xterra SE (4.0L V6)
• 2005-2010 Nissan Xterra Off-Road (4.0L V6)

The Nissan Durability Standard

Designed for the rigorous demands of truck and SUV applications, this ignition kit ensures your Xterra maintains peak reliability whether you are towing a trailer or navigating challenging off-road trails. Restore the dependable low-end torque your rig was built for.

Common Questions

Will this ignition coil and spark plug kit fit my 2005-2015 Nissan Xterra?
Yes, this kit is a direct replacement for all 2005-2015 Nissan Xterra models (N50 chassis) equipped with the 4.0L V6 VQ40DE engine, including X, S, SE, Off-Road, and PRO-4X trims.

What is included in the box?
The kit includes a complete six-pack of direct-replacement ignition coils and six matching iridium spark plugs to service all six cylinders on your 4.0L V6 engine.

Will this kit fit an earlier first-generation Nissan Xterra?
This kit is engineered specifically for the 2005-2015 N50-generation Nissan Xterra with the 4.0L VQ40DE V6 engine.

Which factory part numbers does this ignition coil set replace?
These coils directly replace OEM and cross-reference part numbers 224338J11C, 224488J100, 224488J110, 224488J111, 224488J115, 224488J11C, and C1406-6.

How are these coils and plugs built to handle engine heat?
The ignition coils feature reinforced polymer housings, high-dielectric epoxy potting, and heavy-duty copper windings to resist heat soak and vibration, while the ultra-fine wire iridium center electrodes lower the required firing voltage to reduce stress on the coils.