Ignition Coil & Iridium Spark Plugs for Chrysler Aspen (2007-2009) 5.7L V8

High-Output Ignition Coils & Iridium Spark Plugs for 2007-2009 Chrysler Aspen (5.7L HEMI / HG)

Direct replacement ignition overhaul designed to eliminate misfires and restore combustion efficiency across the dual-spark HEMI platform.

The Stock Aspen Ignition Shortcomings

The 5.7L HEMI V8 engine utilizes a twin-spark ignition system that subjects factory ignition coils and standard spark plugs to extreme thermal cycling and high voltage loads. Over time, OEM coil pack epoxy breaks down, leading to micro-cracks in the housing. This degradation causes voltage leaks to the engine block, resulting in intermittent misfires, rough idling, and noticeable hesitation under load. Furthermore, standard factory plugs suffer from accelerated electrode wear, widening the spark gap and forcing the primary coils to overwork. This vicious cycle reduces fuel economy, diminishes throttle response, and frequently triggers P0300-series diagnostic trouble codes as combustion efficiency rapidly drops.

The Engineering Solution

This comprehensive ignition service kit bundles eight high-output ignition coils with sixteen performance iridium spark plugs to fully overhaul the HG chassis ignition system. The new coils feature upgraded copper windings wrapped in high-dielectric epoxy, ensuring maximum voltage transfer and superior resistance to engine bay heat soak. Paired with iridium-tipped spark plugs—which offer a significantly higher melting point and superior conductivity compared to standard OEM variants—the system maintains a precise spark gap over a substantially longer service life. This exact component combination restores factory horsepower, improves low-end torque, prevents spark blowout during heavy acceleration, and ensures reliable cold starts while maximizing cylinder fuel atomization.

Technical Specifications

Compatibility

• 2007 Chrysler Aspen 5.7L V8
• 2008 Chrysler Aspen 5.7L V8
• 2009 Chrysler Aspen 5.7L V8

The Chrysler Durability Standard

Engineered to handle the high payload and towing demands of the heavy SUV platform, this ignition suite ensures your HEMI delivers consistent, dependable power and torque without check-engine-light interruptions under heavy loads.