Ignition Coil & Iridium Spark Plugs for Infiniti QX60 (2014-2023) 3.5L

High-Output Ignition Coil & Iridium Spark Plugs for 2014-2023 Infiniti QX60 (VQ35 / L50-L51)

What it Does: Replaces degrading factory ignition components to restore optimal spark timing, eliminate misfires, and stabilize idle across the VQ35 engine platform.

The Stock QX60 Ignition Degradation

Factory ignition coils on the VQ35DE and VQ35DD engines are subjected to extreme thermal cycling from the transverse-mounted 3.5L V6 architecture. Over time, heat soak degrades the internal epoxy potting and primary/secondary windings. This thermal breakdown increases internal electrical resistance, leading to weak spark propagation, intermittent misfires under load, and carbon tracking along the coil boots. Additionally, standard OEM spark plugs suffer from accelerated electrode erosion, widening the spark gap and forcing the coils to operate at higher voltages, thereby accelerating premature coil failure.

The Engineering Solution

This ignition package utilizes high-dielectric epoxy resin within the coil bodies to mitigate thermal breakdown and prevent voltage leaks under heavy load. Upgraded primary and secondary copper windings deliver a consistently high-energy spark directly to the combustion chamber. Paired with iridium-tipped spark plugs, the system benefits from iridium's exceptional hardness and high melting point. The ultra-fine center electrode concentrates electrical energy, resulting in a faster spark with significantly lower voltage requirements. This reduces thermal stress on the ignition coils while ensuring complete fuel vaporization and eliminating hesitation.

Technical Specifications

Compatibility

• 2014-2023 Infiniti QX60 Base 3.5L V6
• 2014-2023 Infiniti QX60 Luxe 3.5L V6
• 2014-2023 Infiniti QX60 Pure 3.5L V6
• 2014-2023 Infiniti QX60 Sensory 3.5L V6
• 2014-2023 Infiniti QX60 Autograph 3.5L V6

The Infiniti Precision Standard

Engineered to meet the exact specifications of the modern VQ engine series, this ignition kit ensures reliable, code-free operation without triggering false CELs, restoring the smooth, refined power delivery expected from Infiniti's luxury crossover platform.