Ignition Coil and Iridium Spark Plugs for Hyundai Kona (2018-2021) 1.6L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2018-2021 Hyundai Kona

Direct-Replacement Ignition Service: Restores factory spark energy, optimizes combustion efficiency, and eliminates cylinder misfires across the rev band on direct-injected turbocharged Gamma engines.

The Stock Kona Thermal and High-Boost Ignition Breakdown

Direct-injected turbocharged engines like the 1.6L G4FJ subject ignition components to intense thermal stress and elevated cylinder pressures. Over time, OEM coil boots degrade from underhood heat cycling, leading to dielectric breakdown and micro-arcing. Simultaneously, factory spark plug gaps widen from standard erosion, increasing resistance and overloading coil secondary windings. This degradation manifests as hesitation under boost, rough idle, degraded fuel economy, and P0300-P0304 misfire diagnostic trouble codes.

The Engineering Solution

This complete ignition kit features four direct-fit coil-on-plug assemblies engineered with high-conductivity internal copper windings and reinforced epoxy encapsulation to resist heat soak and eliminate high-voltage leakage. Paired with four fine-wire iridium spark plugs, the system provides high spark stability and anti-fouling resistance to ignite dense air-fuel charges under peak boost, ensuring consistent combustion and crisp throttle response.

Technical Specifications

Compatibility

• 2018-2021 Hyundai Kona Limited (1.6L L4 Turbo)
• 2018-2021 Hyundai Kona Ultimate (1.6L L4 Turbo)
• 2021 Hyundai Kona Night Edition (1.6L L4 Turbo)

The Hyundai Direct-Injection Standard

Engineered to meet the exact electrical and dwell parameters of the Kona platform, this complete coil and plug kit guarantees seamless ECU communication and reliable spark delivery without misfires or CELs.