Ignition Coil and Iridium Spark Plugs for Genesis G80 (2017-2020) 3.8L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2017-2020 Genesis G80

What it Does: The ignition coil and iridium spark plug kit replaces worn secondary ignition components on the 2017-2020 Genesis G80 to eliminate cylinder misfires, restore clean combustion efficiency, and smooth out erratic idle states.

The Stock Genesis G80 Dielectric Breakdown

In the DH chassis engine bay, thermal retention around the direct-injected 3.8L cylinder heads places severe stress on factory ignition components. Over continuous drive cycles, prolonged heat soak degrades the internal epoxy potting and secondary copper windings within the OEM pencil coils. This causes high-voltage micro-arcing, carbon tracking, and intermittent misfires under heavy load. Compounding the issue, standard electrode erosion on factory plugs widens the spark gap, forcing the fatigued coils to draw higher primary amperage and accelerating premature ignition failure.

The Engineering Solution

This overhaul kit restores ignition energy to factory tolerances using six heavy-duty pencil coils and matched fine-wire iridium spark plugs. The coils are engineered with high-dielectric thermoplastic housings, vacuum-poured resin potting, and specialized silicone boots that resist dielectric puncture and heat embrittlement. Paired with laser-welded iridium-tipped spark plugs that deliver consistent flame propagation at lower required ionization voltages, this kit ensures complete combustion of high-pressure fuel charges and directly replaces OEM part numbers 273103L000 and UF844.

Technical Specifications

Compatibility

• 2017 Genesis G80 3.8 Sedan (RWD / AWD)
• 2018 Genesis G80 3.8 Sedan (RWD / AWD)
• 2019 Genesis G80 3.8 Sedan (RWD / AWD)
• 2020 Genesis G80 3.8 Sedan (RWD / AWD)

Frequently Asked Questions

Does this fit the DH G80?
Yes, this is a direct fit for the 2017-2020 Genesis G80 equipped with the Lambda II G6DJ 3.8L V6 engine.

Are the iridium spark plugs pre-gapped for direct-injection service?
Yes, the plugs arrive factory-set to the OEM gap specification for the 3.8L GDI, though verifying gap before installation is always best practice.

The Genesis Executive Caliber

A flagship luxury sedan demands precise combustion dynamics to maintain whisper-quiet cabin acoustics and seamless, linear acceleration. This ignition kit preserves that standard of refinement, eliminating stumbling and check engine lights without requiring software calibration.