Ignition Coil and Iridium Spark Plugs for Ford Fiesta (2017-2019) 1.6L

Direct-Fit High-Reliability Ignition Coil and Iridium Spark Plug Kit for 2017-2019 Ford Fiesta

What it Does: Restores factory secondary ignition output and stabilizes cylinder combustion by replacing degraded coil-on-plug packs and worn spark plugs with OEM-grade components.

The Stock Fiesta Ignition Breakdown

Under tight engine bay packaging in the B299 chassis, continuous thermal cycling severely degrades factory coil-on-plug epoxy potting and internal copper windings. Over time, micro-fissures in the housing allow moisture intrusion and high-voltage dielectric breakdown, creating intermittent primary/secondary arc leakage. Combined with plug electrode gap expansion caused by spark erosion, the ignition system demands higher ionization voltage than the degraded coils can supply, resulting in low-RPM misfires, erratic idle, sluggish throttle response, and unburnt hydrocarbon catalyst contamination.

The Engineering Solution

This direct-replacement kit utilizes heavy-gauge, high-conductivity internal copper windings encapsulated in high-dielectric epoxy to withstand thermal stress and deliver consistent spark energy exceeding 35,000 volts. The matched iridium spark plugs utilize laser-welded fine-wire center electrodes and corrosion-resistant trivalent metal plating to optimize flame kernel propagation, reduce spark quenching, and lower ignition voltage requirements under load for immediate cold-start firing and seamless power delivery.

Technical Specifications

Compatibility

• 2017 Ford Fiesta 1.6L L4 Gas (S, SE, Titanium)
• 2018 Ford Fiesta 1.6L L4 Gas (S, SE, Titanium)
• 2019 Ford Fiesta 1.6L L4 Gas (S, SE)

The Ford Caliber Standard

Built to exact OEM mechanical tolerances and connector pin-out specifications, this kit guarantees trouble-free, plug-and-play installation without triggering DTC misfire codes, ensuring dependable daily commuter reliability and optimal fuel economy.