Ignition Coil & Iridium Spark Plugs for Jaguar XJ (2014-2019) 3.0L V6

Direct-Fit Ignition Coil & Iridium Spark Plugs for 2014-2019 Jaguar XJ

Restores optimal combustion and eliminates misfires for the AJ126 3.0L V6. This direct-replacement ignition coil and iridium spark plug kit resolves persistent hesitation, rough idling, and engine codes to restore factory-level performance and fuel efficiency.

The Stock X351 Ignition Shortcoming

Over time, the factory ignition system on the supercharged 3.0L AJ126 engine is prone to severe thermal degradation. Heat soak from the forced induction setup causes the epoxy potting within the OEM ignition coils to micro-crack, leading to voltage leaks and weak sparks. Simultaneously, factory spark plugs suffer from gap widening and electrode erosion under high-load conditions. This degradation manifests as a rough idle, noticeable power loss during acceleration, blinking check engine lights (CEL), and specific cylinder misfire codes (P0300 series). Ignoring these early warning signs can eventually lead to unburned fuel damaging the catalytic converters, resulting in costly secondary repairs.

The Engineering Solution

This comprehensive ignition overhaul kit is engineered to exceed factory standards and withstand the high thermal loads of the supercharged V6. The ignition coils feature upgraded copper windings and high-dielectric epoxy housing, preventing voltage breakdown and ensuring a consistent, high-energy spark delivery up to the redline. Paired with premium iridium spark plugs, this kit provides exceptional wear resistance. Iridium's ultra-high melting point prevents electrode degradation, maintaining an exact gap over thousands of miles for complete fuel atomization. The blade-style female and male terminal connectors are precision-machined to ensure a secure, corrosion-resistant mating surface, guaranteeing a perfect plug-and-play installation without the need for splicing or modification.

Technical Specifications

Compatibility

• 2014-2019 Jaguar XJ 3.0L V6 Supercharged

The Jaguar Precision Standard

Designed for strict European vehicle tolerances, this ignition service kit guarantees a CEL-free operation and smooth, linear power delivery. Restore the refined driving dynamics your luxury sedan was engineered to provide.