Ignition Coil and Iridium Spark Plugs for Infiniti Q70 (2014-2019) 3.7L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2014-2019 Infiniti Q70

What it Does: Replaces degraded factory coil packs and fouled spark plugs to eliminate high-RPM misfires, stabilize idle quality, and restore peak combustion efficiency across all six cylinders.

The Stock Q70 Ignition Breakdown

The high-revving VQ37VHR engine subjects coil-on-plug assemblies to continuous thermal cycling and intense dielectric stress within tightly packaged cylinder heads. Over time, OEM primary and secondary copper windings break down internally, and aging silicone boots develop microscopic carbon tracking paths. This voltage leak causes incomplete combustion, hesitation during acceleration, and intermittent misfire codes. Compounding the issue, eroded spark plug gaps elevate the required ionization voltage, accelerating coil failure under load.

The Engineering Solution

This comprehensive tune-up kit pairs six direct-fit ignition coils with matched fine-wire iridium spark plugs to restore factory ignition reserve. Built with premium internal copper windings, direct-fit blade connectors, and high-dielectric epoxy potting, these coils resist heat-soak degradation and deliver consistent spark energy. Paired with wear-resistant iridium center electrodes that maintain precise gaps under elevated cylinder pressures, this setup ensures rapid flame-front propagation and immediate throttle response.

Technical Specifications

Compatibility

• 2014-2019 Infiniti Q70 3.7L V6 (AWD / RWD, Base, Luxe, Sport)
• 2015-2019 Infiniti Q70L 3.7L V6 (AWD / RWD)
• Direct Interchange: UF550, UF-550, 5C1727, 673-4029, C1670, CUF2118, GN10244, 22448-JA10C, 22448JA10C, 22448-JA11C, 22448JA11C, 22448-EY00A, 22448EY00A, 22448-JA10A

The Infiniti Performance Standard

Engineered to handle the 7,500 RPM redline of Infiniti's VVEL naturally aspirated V6, this ignition kit maintains rock-solid arc stability across the entire powerband. It delivers clean burn cycles and crisp throttle response without triggering erratic knock sensor readings or check engine lights.