Ignition Coil & Iridium Spark Plugs for Dodge Durango (2006-2022) 5.7L 6.4L V8

High-Output Ignition Coils & Iridium Spark Plugs for 2006-2022 Dodge Durango (5.7L / 6.4L HEMI WD)

Upgrades the factory ignition system with heavy-duty coil packs and fine-wire iridium spark plugs to eliminate misfires, stabilize idle, and maximize combustion efficiency under load.

The Stock Durango Ignition Weakness

The OEM Dodge ignition coils are prone to thermal degradation and voltage leakage after prolonged exposure to the intense underhood temperatures generated by the 5.7L and 6.4L HEMI V8 engines. Over time, the factory coil windings break down, causing weak spark delivery, sluggish throttle response, high-rpm misfires, and reduced fuel economy. Additionally, standard factory spark plugs experience rapid electrode wear. This leads to expanding spark gaps that put unnecessary strain on the aging coil packs, ultimately resulting in incomplete combustion and diminished torque output, particularly during heavy towing or sustained acceleration.

The Engineering Solution

This comprehensive ignition overhaul kit pairs eight high-voltage coil packs with sixteen precisely gapped performance iridium spark plugs to fully service the HEMI's dual-spark ignition system. The upgraded ignition coils feature advanced copper wire windings encased in high-dielectric epoxy to prevent voltage leaks and resist thermal heat soak. Paired with fine-wire iridium center electrodes, these spark plugs require less voltage to bridge the gap while generating a concentrated, high-intensity spark front. This synergistic upgrade ensures a complete, efficient fuel burn, resulting in stabilized idle characteristics, restored horsepower, and consistent torque delivery across the entire RPM range without triggering check engine lights.

Technical Specifications

Compatibility

• 2006-2022 Dodge Durango (5.7L V8 HEMI)
• 2018-2022 Dodge Durango SRT (6.4L V8 HEMI)

The Dodge Heavy-Duty Standard

Engineered to match the aggressive performance and heavy-duty demands of the modern HEMI V8, this ignition package ensures consistent power delivery whether you are towing heavy loads, hauling the family, or putting down maximum torque on the highway.