Ignition Coil and Iridium Spark Plugs for Hyundai Tucson (2011-2013) 2.0L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2011-2013 Hyundai Tucson

What it Does: Restores factory ignition performance by replacing degraded coil-on-plug packs and worn spark plugs to eliminate misfires, rough idle, and hesitation under load.

The Stock Tucson Ignition Breakdown

As the Theta II engine accumulates mileage, high-temperature thermal cycling degrades the factory ignition coil boots and internal epoxy insulation. This leads to dielectric breakdown and high-voltage arc tracking directly into the cylinder head. Concurrently, increased spark gap resistance from eroded OEM plugs forces the primary windings to operate under excessive thermal stress. The resulting weak spark causes intermittent misfires (DTC P0300–P0304), incomplete combustion, unburned fuel dumping into the catalytic converter, and noticeable fuel economy degradation.

The Engineering Solution

This comprehensive service kit integrates reinforced ignition coils built with high-conductivity copper primary and secondary windings, encased in high-dielectric epoxy to resist extreme under-hood heat soak. Coupled with laser-welded fine-wire iridium spark plugs, the assembly lowers the required firing voltage while generating a hotter, more stable flame kernel. Direct-fit blade connectors ensure low-resistance electrical contact and a true plug-and-play installation without harness modifications.

Technical Specifications

Compatibility

• 2011 Hyundai Tucson 2.0L L4 (GL, Base)
• 2012 Hyundai Tucson 2.0L L4 (GL)
• 2013 Hyundai Tucson 2.0L L4 (GL)

The Hyundai Daily-Driven Caliber

Engineered to meet rigorous OEM operational tolerances, this ignition overhaul ensures rapid cold-start cranking, steady idle stabilization, and clean combustion cycles with zero check engine lights for dependable daily commuting.