Ignition Coil and Iridium Spark Plugs for Nissan Armada (2005-2006) 5.6L

Direct-Replacement Ignition Coil & Iridium Spark Plug Kit for 2005-2006 Nissan Armada

Direct Replacement Ignition System: Restores factory spark energy and cylinder combustion efficiency across all eight cylinders on the 5.6L V8 platform.

The Stock Armada Ignition Breakdown

Sustained thermal cycling inside the VK56DE engine bay leads to dielectric breakdown and micro-fractures in the factory coil housing epoxy and internal copper windings. Over time, high heat soak causes secondary winding resistance to drift, leading to weak arc generation, internal voltage leakage, and spark blowout under load. Paired with aged spark plug electrode gap widening, this results in rough idle, cylinder misfires (P0300-P0308 codes), reduced fuel economy, and power loss during heavy towing.

The Engineering Solution

This comprehensive ignition pack features heavy-duty coil assemblies built with high-grade copper windings, direct-fit blade terminal connectors, and thermal-resistant silicone boots to isolate high voltage. Paired with laser-welded iridium spark plugs, this system provides a highly concentrated spark kernel with minimal quenching, ensuring rapid flame propagation and reliable combustion stability under maximum cylinder pressures.

Technical Specifications

Compatibility

• 2005 Nissan Armada 5.6L V8 (SE, SE Off-Road, LE)
• 2006 Nissan Armada 5.6L V8 (SE, SE Off-Road, LE)

The Nissan Durability Standard

Engineered to meet the thermal and electrical demands of full-size SUV towing and severe-duty hauling, this ignition kit delivers continuous spark saturation without breakdown under sustained high-load conditions.