Ignition Coil and Iridium Spark Plugs for Kia Forte (2017-2018) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2017-2018 Kia Forte

Complete Ignition Refresh: This matched set of four ignition coil packs and fine-wire iridium spark plugs restores factory ignition timing and eliminates cylinder misfires on the 2.0L 4-cylinder engine.

The Stock Forte Ignition Degradation

Factory coil packs on the Nu 2.0L engine endure intense thermal cycling inside recessed cylinder head wells. Over time, OEM primary and secondary epoxy insulation develops micro-fractures, causing dielectric breakdown, erratic spark scatter, and elevated secondary resistance. Combined with eroded factory spark plug gaps, this leads to rough idle, delayed throttle response, reduced fuel economy, and P0300–P0304 diagnostic trouble codes.

The Engineering Solution

This kit utilizes high-conductivity internal copper windings encapsulated in high-grade dielectric potting resin to eliminate electrical leakage under high combustion pressures. Paired with laser-welded iridium electrode spark plugs, the assembly lowers the required firing voltage, accelerates flame-front propagation, and features direct-fit blade terminals that mate seamlessly with the factory harness without modification.

Technical Specifications

Compatibility

• 2017 Kia Forte (2.0L L4 - LX, S, EX)
• 2018 Kia Forte (2.0L L4 - LX, S, EX)

The Kia Commuter Standard

Engineered to handle severe daily stop-and-go thermal cycles, this ignition kit guarantees reliable cold starts, OEM-spec emissions compliance, and smooth, misfire-free power delivery across the entire RPM band.