Ignition Coil and Iridium Spark Plugs for Honda Civic (2016-2021) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Tune-Up Kit for 2016-2021 Honda Civic 2.0L

What it Does: Restores factory secondary ignition output, eliminates cylinder misfires, and stabilizes idle performance by replacing degraded coil packs and eroded plugs with precision-matched OEM-spec components.

The Stock Civic K20C2 Ignition Breakdown

Under continuous thermal cycling in the compact K20C2 engine bay, factory pencil coil housings suffer from dielectric breakdown and internal winding degradation. Over time, high cylinder head temperatures compromise internal epoxy potting, while standard spark plug gaps erode, elevating secondary voltage demand. This causes weak spark delivery, sluggish throttle response, reduced fuel economy, and intermittent DTC misfire codes under load.

The Engineering Solution

This complete ignition kit features four heavy-duty direct-replacement pencil coils engineered with high-dielectric resin and premium copper windings to deliver consistent peak voltage discharge. Paired with four ILZKAR8H8S-specification iridium spark plugs featuring laser-welded fine-wire center electrodes, this set reduces required ignition voltage, prevents quench, and provides exceptional resistance to spark erosion and high-heat fouling.

Technical Specifications

Compatibility

• 2016-2021 Honda Civic LX: 2.0L L4 Gas (K20C2)
• 2016-2021 Honda Civic EX: 2.0L L4 Gas (K20C2)
• 2019-2021 Honda Civic Sport: 2.0L L4 Gas (K20C2)

The Honda Precision Standard

Engineered to meet the exact electrical tolerances of Honda i-VTEC powertrains, this complete kit ensures seamless plug-and-play installation, crisp throttle response, and smooth power delivery across the entire RPM band.