Ignition Coil & Iridium Spark Plugs for Jaguar F-Type (2018-2023) 5.0L V8

High-Output Ignition Coils & Iridium Spark Plugs for 2018-2023 Jaguar F-Type

Restores optimal combustion and eliminates high-load misfires by replacing degrading factory ignition components with precise high-voltage coils and ultra-durable iridium spark plugs.

The Stock AJ133 Ignition Shortcoming

The supercharged 5.0L V8 in the Jaguar F-Type generates massive under-hood temperatures, leading to accelerated thermal cycling on factory ignition coils. Over time, the internal epoxy and primary windings degrade, increasing resistance and causing secondary voltage drops. Concurrently, standard platinum or nickel spark plugs suffer from accelerated electrode erosion under high-boost conditions. This increases the spark gap beyond factory tolerances, leading to spark blowout, erratic idle, reduced throttle response, and inevitable cylinder misfire codes (P0300-P0308) during heavy acceleration.

The Engineering Solution

This 16-piece direct-replacement kit addresses AJ133 thermal degradation by utilizing upgraded 12V 3-pin ignition coils designed to maintain stable voltage under extreme heat. Paired with high-performance Iridium tip spark plugs, this kit ensures a concentrated, powerful spark. The Iridium center electrode is significantly harder than standard nickel, providing exceptional resistance to spark erosion and maintaining the preset 0.7-0.8mm gap over an extended service life. The plugs feature a highly conductive nickel core for rapid heat dissipation, a 12mm thread diameter, 28mm reach, and operate within strict 3-12KΩ resistance parameters to guarantee seamless ECU communication without triggering phantom fault codes.

Technical Specifications

Compatibility

• 2018-2023 Jaguar F-Type R (5.0L V8)
• 2018-2023 Jaguar F-Type SVR (5.0L V8)
• 2022-2023 Jaguar F-Type P450 (5.0L V8)

The Jaguar Precision Standard

European forced-induction V8s require exacting ignition tolerances. By utilizing strict factory resistance values and precision-machined 14mm hex hardware with a 15Nm installation torque spec, this kit ensures OEM-level fitment, perfectly smooth idle, and long-term reliability without triggering Check Engine Lights.