Ignition Coil & Iridium Spark Plugs for Land Rover Range Rover Sport (2018-2022) 5.0L V8

Complete Ignition Overhaul Kit for 2018-2022 Land Rover Range Rover Sport

Restores factory ignition performance and eliminates misfires by providing a complete, direct-replacement coil and iridium spark plug package for the AJ133 5.0L V8 engine.

The Stock Range Rover Sport Ignition Weakness

The L494 Range Rover Sport equipped with the 5.0L Supercharged V8 generates immense under-hood temperatures and high cylinder pressures. Over time, this intense heat soak degrades the internal epoxy and secondary windings of the factory ignition coils, leading to internal arcing, increased resistance, and inevitable misfires under load. Furthermore, standard OEM spark plugs suffer from accelerated electrode wear under supercharged boost. As the gap widens beyond factory specifications, the ignition system struggles to maintain a consistent spark, resulting in a rough idle, reduced fuel economy, sluggish throttle response, and the dreaded P0300-series diagnostic trouble codes.

The Engineering Solution

This comprehensive ignition service kit addresses these thermal and electrical failures head-on. The included direct-replacement ignition coils feature high-grade dielectric epoxy and upgraded copper windings, engineered to withstand the extreme thermal cycling of the AJ133 engine bay without breaking down. Operating at 12V with a measured 3-12KΩ resistance, they deliver maximum voltage directly to the plug. Paired with high-performance Iridium center-electrode spark plugs, this kit ensures a concentrated, high-intensity spark that significantly outperforms standard nickel or platinum alternatives. The plugs feature a 12mm thread, a 28mm reach, and are pre-gapped to 0.7-0.8mm to guarantee reliable combustion under high boost pressures, extending service intervals and fully restoring factory power delivery.

Technical Specifications

Compatibility

• 2018 Land Rover Range Rover Sport 5.0L V8
• 2019 Land Rover Range Rover Sport 5.0L V8
• 2020 Land Rover Range Rover Sport 5.0L V8
• 2021 Land Rover Range Rover Sport 5.0L V8
• 2022 Land Rover Range Rover Sport 5.0L V8

The Land Rover Precision

Designed to meet the exacting standards of European luxury performance, this ignition package ensures perfectly timed combustion and eliminates persistent check engine lights (CELs), keeping your supercharged V8 running smoothly and efficiently.