Ignition Coil and Iridium Spark Plugs for Land Rover LR3 (2005-2007) 4.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2005-2007 Land Rover LR3

What it Does: The Ignition Coil and Iridium Spark Plug Kit replaces worn factory ignition components on the 2005-2007 Land Rover LR3 to eliminate secondary ignition breakdown, cure cylinder misfires, and restore combustion efficiency.

The Stock Land Rover LR3 Thermal Breakdown and Spark Degradation

Under-hood heat cycling in the L319 chassis severely degrades the factory ignition coils on the Ford-derived Cologne 4.0L SOHC V6. Over time, the internal epoxy potting insulation develops micro-fractures, allowing secondary high-voltage current to arc to engine ground rather than firing the cylinder. Compounding this failure mode, standard worn spark plug electrodes suffer from gap widening, placing excessive impedance on aging coil windings. This voltage leak-down directly manifests as rough idling, poor fuel economy, hesitations under load, and typical misfire trouble codes (P0300 through P0306).

The Engineering Solution

This comprehensive service kit pairs six reinforced ignition coils with fine-wire iridium spark plugs to re-establish proper primary and secondary ignition balance. The coils utilize premium copper wire windings encapsulated in high-grade dielectric epoxy to prevent thermal breakdown and flashover under heavy operating temperatures. The accompanying iridium spark plugs require lower firing voltages while delivering a hotter, more concentrated spark kernel across the combustion chamber. Engineered as a direct interchange for OEM numbers LR002427, UF590, and 4603135, this kit ensures complete combustion chamber burn without ECM recalibration.

Technical Specifications

Compatibility

• 2005 Land Rover LR3 4.0L V6 (L319)
• 2006 Land Rover LR3 4.0L V6 (L319)
• 2007 Land Rover LR3 4.0L V6 (L319)

Frequently Asked Questions

Does this fit the L319 LR3?
Yes, this is a direct fit for the 2005-2007 Land Rover LR3 equipped with the Cologne 4.0L SOHC V6 engine.

Are the iridium spark plugs pre-gapped for this application?
Yes, the plugs are factory gapped to OEM specifications, eliminating the need for adjustment and preventing damage to the fine-wire iridium tips.

The Land Rover Precision Standard

Maintaining proper European emissions and engine management standards requires zero-tolerance ignition delivery. This direct-replacement kit safeguards downstream catalytic converters from unburnt hydrocarbons, clearing check engine lights and delivering smooth, factory-grade throttle response across all driving environments.