Ignition Coil + Iridium Spark Plugs for Fiat 500 (2012-2017) 1.4L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2012-2017 Fiat 500

What it Does: The ignition coil and iridium spark plug kit replaces degraded primary ignition components on the 2012-2017 Fiat 500 to eliminate secondary breakdown, prevent high-rpm misfires, and restore peak combustion efficiency.

The Stock Fiat 500 Heat Soak and Arcing Weakness

The compact engine bay of the Tipo 312 platform traps significant thermal energy directly over the cylinder head. Over continuous heat cycles, factory coil housing epoxy degrades and micro-cracks develop, allowing high-voltage current to arc to the cylinder head rather than jumping the plug gap. Coupled with electrode gap erosion on standard plugs, the 1.4L FIRE MultiAir engine suffers from high secondary voltage demands, leading to P0300-P0304 cylinder misfire codes, sluggish throttle response, unburnt fuel entering the exhaust stream, and rough idling under load.

The Engineering Solution

This kit delivers a matched set of direct-fit ignition coils and fine-wire iridium spark plugs engineered for thermal stability. The coils feature vacuum-potted high-dielectric resin and premium insulated copper windings to eliminate voltage leakage under high-load operating conditions. Paired with laser-welded 0.6mm iridium center-electrode spark plugs, the assembly reduces required ionization voltage, promotes immediate flame kernel expansion, and resists carbon fouling. Replacing both components in unison ensures uniform electrical resistance across all cylinders, clearing check engine lights and restoring smooth acceleration.

Technical Specifications

Compatibility

• 2012-2017 Fiat 500 Pop 1.4L 4-Cylinder
• 2012-2017 Fiat 500 Lounge 1.4L 4-Cylinder
• 2012-2016 Fiat 500 Sport 1.4L 4-Cylinder

Frequently Asked Questions

Does this fit the Tipo 312 500?
Yes, this is a direct fit for the 2012-2017 Fiat 500 equipped with the 1.4L FIRE engine.

Are the iridium spark plugs pre-gapped for this application?
Yes, the plugs are pre-set to factory specifications, though verifying gap clearance before final torque application is recommended.

The Fiat Precision Standard

Modern European powertrains depend on exact ignition timing and electrical resistance to protect sensitive emissions equipment. Installing matched coils and iridium plugs maintains factory diagnostic tolerances, preventing catalytic converter poisoning and keeping your engine running smooth and CEL-free.