Ignition Coil + Spark Plugs for Land Rover LR3 (2006-2009) 4.4L

Direct-Fit Ignition Coil and Spark Plug Kit for 2006-2009 Land Rover LR3

What it Does: The ignition coil and spark plug kit replaces worn factory ignition components on the 2006-2009 LR3 to eliminate engine misfires, restore lost combustion efficiency, and stabilize idle quality.

The Stock Land Rover LR3 Ignition Degradation

Under-hood heat soak in the L319 engine bay accelerates the breakdown of the factory coil packs on the AJ41 4.4L V8. Over time, high thermal cycling degrades the internal epoxy resin and silicone boots, creating microscopic fissures. These stress fractures cause high-voltage secondary arc-through, dielectric breakdown, and intermittent spark blowout under load. Paired with aged spark plugs suffering from worn center electrodes and expanded plug gaps, the ignition system demands higher primary voltage from the ECU, ultimately causing rough idles, hesitation, unburned hydrocarbon emissions, and persistent P0300-P0308 diagnostic trouble codes.

The Engineering Solution

This comprehensive service kit features eight precision-wound ignition coils matched with eight properly gapped spark plugs. The coils are manufactured with high-temperature epoxy potting and heat-resistant silicone boots to isolate voltage leaks and resist thermal stress. Optimized primary and secondary copper windings deliver high-energy spark discharge directly to the combustion chamber. Paired with corrosion-resistant, high-conductivity spark plugs, this kit stabilizes flame-front propagation, improves throttle response, and preserves catalytic converter efficiency.

Technical Specifications

Compatibility

• 2006 Land Rover LR3 4.4L V8 (Base, HSE, SE)
• 2007 Land Rover LR3 4.4L V8 (HSE, SE)
• 2008 Land Rover LR3 4.4L V8 (HSE, SE)
• 2009 Land Rover LR3 4.4L V8 (HSE)

Frequently Asked Questions

Does this fit the L319 LR3?
Yes, this is a direct-fit replacement for the 2006-2009 Land Rover LR3 equipped with the naturally aspirated AJ41 4.4L V8 engine.

Should I replace all eight coils and plugs simultaneously?
Yes, replacing all coils and plugs as an entire set prevents electrical resistance imbalances across the engine bank and stops secondary misfire codes.

The Land Rover Precision Standard

Maintaining factory European engine management standards requires clean, consistent spark delivery to keep fuel trim levels balanced and prevent unmetered cylinder wash. This direct-replacement ignition kit meets strict factory coil-on-plug tolerances to ensure immediate cold starts, smooth highway cruising, and zero CEL faults.