Ignition Coil + Iridium Spark Plugs for Hyundai Genesis (2012-2016) 3.8L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2012-2016 Hyundai Genesis

What it Does: The ignition coil and iridium spark plug kit restores secondary ignition voltage and flame-front stability on the 2012-2016 Hyundai Genesis 3.8L to eliminate high-load misfires and restore precise throttle calibration.

The Stock Hyundai Genesis Ignition Breakdown

Under demanding operating conditions, the factory coil packs on the BH and DH chassis suffer from thermal degradation. Engine bay heat soak degrades the internal epoxy insulation and internal copper primary/secondary windings over time. This breakdown causes dielectric punch-through, spark energy leakage, and secondary voltage drop-off. Compounding this, the high compression and cylinder pressures of the direct-injected Lambda II (G6DJ) engine accelerate electrode erosion on standard plugs. The resulting widened spark gap forces aging coils to work harder, triggering intermittent stumbling, rough idle, poor fuel economy, and P0300-P0306 misfire trouble codes.

The Engineering Solution

This comprehensive tune-up kit restores factory spark energy through upgraded materials and tighter manufacturing tolerances. The ignition coils feature high-dielectric PBT thermoplastic housings filled with premium epoxy potting to seal out moisture and eliminate voltage arcing under load. Internal core windings utilize high-conductivity magnetic copper wire for fast saturation and sustained spark discharge. Paired with fine-wire laser-welded iridium center electrodes and copper-core ground electrodes, this combination provides minimal quenching, stable arc initiation, and sustained resistance against gap growth under aggressive direct-injection combustion pressures.

Technical Specifications

Compatibility

• 2012-2016 Hyundai Genesis 3.8L V6 (Sedan & Coupe)

Frequently Asked Questions

Does this fit the BH and DH Genesis?
Yes, this is a direct fit for the 2012-2016 Hyundai Genesis equipped with the 3.8L Lambda II (G6DJ) engine.

Should ignition coils and spark plugs be replaced at the same time?
Yes, servicing both simultaneously prevents premature coil failure caused by the excessive internal resistance of worn, widened spark plug gaps.

The Hyundai Performance Standard

Direct-injected naturally aspirated performance demands consistent high-voltage delivery to maintain peak efficiency throughout the RPM band. This kit matches factory dwell curves and pin configurations, providing reliable cold starts, crisp transient throttle response, and smooth power across the tachometer.