Ignition Coil & Iridium Spark Plugs for Land Rover Range Rover Sport (2014-2018) 3.0L V6

Direct-Fit Ignition Coil & Iridium Spark Plugs for 2014-2018 Land Rover Range Rover Sport

Direct OEM-replacement ignition coil and iridium spark plug kit designed to restore proper combustion and eliminate high-load misfires on the AJ126 3.0L Supercharged V6 engine.

The Stock Range Rover Sport Ignition Weakness

The factory ignition system on the L494 Range Rover Sport, specifically within the AJ126 3.0L Supercharged V6, is highly susceptible to thermal degradation. Positioned near the supercharger and hot cylinder heads, the OEM ignition coils endure intense heat cycling, leading to epoxy housing micro-fractures. Over time, these cracks compromise the internal copper windings, resulting in voltage leaks, high-load misfires, and reduced throttle response. Coupled with standard spark plugs that suffer from rapid electrode wear under forced induction pressures, the system eventually triggers rich conditions, unburnt fuel accumulation, and stubborn P0300-series check engine codes.

The Engineering Solution

This direct-replacement ignition coil and iridium spark plug package resolves inherent AJ126 ignition failures by utilizing high-temperature epoxy and reinforced dielectric resins. The advanced coil housing design resists thermal shock, ensuring consistent voltage output to the spark plugs even under sustained supercharger load. The included iridium spark plugs feature an ultra-fine wire center electrode, requiring less voltage to jump the gap while providing a hotter, more stable spark. This optimized combustion sequence drastically reduces the risk of blow-out under boost, maximizes fuel burn efficiency, and restores factory horsepower output without relying on unstable aftermarket voltage modifiers.

Technical Specifications

Compatibility

• 2014 Land Rover Range Rover Sport 3.0L V6
• 2015 Land Rover Range Rover Sport 3.0L V6
• 2016 Land Rover Range Rover Sport 3.0L V6
• 2017 Land Rover Range Rover Sport 3.0L V6
• 2018 Land Rover Range Rover Sport 3.0L V6

The Land Rover Diagnostic Caliber

Designed strictly to factory electrical tolerances to guarantee immediate communication with the Land Rover ECU, eliminating soft codes and restoring exact timing curves for a smooth, misfire-free idle under all driving conditions.