Ignition Coil and Iridium Spark Plugs for Alfa Romeo Giulia (2017-2018) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2017-2018 Alfa Romeo Giulia

What it Does: The complete ignition kit replaces aged factory ignition components on the 2017-2018 Alfa Romeo Giulia to resolve cylinder misfires, restore combustion efficiency, and guarantee reliable spark delivery under boost.

The Stock Alfa Romeo Giulia Ignition Breakdown Under Thermal Load

In the direct-injected 2.0L turbocharged engine of the Type 952 Giulia, ignition coils are subjected to extreme thermal cycling within deeply recessed cylinder head wells. Over time, thermal fatigue causes dielectric degradation in factory coil windings and internal primary boots, prompting high-voltage micro-arcing and intermittent secondary-ignition dropouts under elevated manifold pressures. Additionally, standard spark plugs suffer ground strap erosion and carbon tracking, precipitating cold-start stutter, power hesitation under load, and catalyst-damaging unburnt hydrocarbons.

The Engineering Solution

This service kit integrates four pencil ignition coils and four fine-wire iridium spark plugs precision-engineered to meet demanding forced-induction operating parameters. The replacement coil bodies utilize high-temperature epoxy encapsulation and reinforced vulcanized silicone boots to resist flashover, oil degradation, and thermal puncture. Paired with laser-welded iridium electrode spark plugs designed for high melt points and minimal gap growth, this direct-fit system maintains stable flame propagation across the entire powerband. Built to interchange with OEM part numbers 68211953AA and UF-839, it restores factory dwell stability without requiring ECU recalibration.

Technical Specifications

Compatibility

• 2017-2018 Alfa Romeo Giulia Base 2.0L L4 Turbo (RWD/AWD)
• 2017-2018 Alfa Romeo Giulia Ti 2.0L L4 Turbo (RWD/AWD)
• 2017-2018 Alfa Romeo Giulia Ti Lusso 2.0L L4 Turbo (RWD/AWD)
• 2017-2018 Alfa Romeo Giulia Ti Sport 2.0L L4 Turbo (RWD/AWD)

Frequently Asked Questions

Does this fit the Type 952 Giulia?
Yes, this is a direct fit for the 2017-2018 Alfa Romeo Giulia equipped with the GME T4 engine.

Do these replacement iridium plugs require gapping prior to installation?
No, these iridium plugs are pre-gapped to precise factory specifications for the 2.0L turbo platform and should not be mechanically adjusted to avoid damaging the fine-wire tip.

The Alfa Romeo Precision Standard

Engineered for European driving dynamics, this ignition replacement eliminates CEL trigger conditions, ensures smooth cold starts, and maintains seamless power delivery throughout aggressive acceleration phases without compromise.