Ignition Coil and Iridium Spark Plugs for Fiat 124 Spider (2017-2020) 1.4L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2017-2020 Fiat 124 Spider

What it Does: Restores factory ignition energy and precise combustion timing across all four cylinders by replacing worn coil packs and degraded spark plugs with matched direct-fit components.

The Stock 124 Spider Ignition Degradation

The turbocharged 1.4L MultiAir engine runs elevated combustion chamber temperatures and cylinder pressures, which accelerate thermal degradation of the factory coil-on-plug assemblies. Over heat cycles, the internal primary and secondary copper windings experience insulation breakdown, causing micro-arcing and intermittent secondary voltage drop. Combined with standard electrode erosion on factory plugs, this leads to spark blowout under boost, rough idle, misfire DTCs (P0300-P0304), and sluggish throttle response.

The Engineering Solution

This ignition kit pairs four heavy-duty coil-on-plug assemblies with four fine-wire iridium spark plugs to handle high-boost cylinder pressures. The coils are engineered with high-density internal copper windings, heat-resistant epoxy potting, and OEM-spec blade terminals for solid electrical continuity and thermal resistance. The iridium spark plugs feature a minimal center electrode diameter, requiring lower strike voltage while resisting gap erosion, preventing misfires, and ensuring clean combustion across the entire rev range.

Technical Specifications

Compatibility

• 2017-2020 Fiat 124 Spider Classica (1.4L I4 Turbo)
• 2017-2020 Fiat 124 Spider Lusso (1.4L I4 Turbo)
• 2017-2020 Fiat 124 Spider Abarth (1.4L I4 Turbo)
• 2017-2020 Fiat 124 Spider Urbana (1.4L I4 Turbo)

The Fiat MultiAir Precision Standard

Engineered to meet tight European ECU parameters, this kit delivers consistent primary resistance and dwell-time compatibility, eliminating hesitation and preventing check engine lights without requiring ECU calibration.