Ignition Coil and Iridium Spark Plugs for Chrysler Aspen (2007-2009) 4.7L

Direct-Fit Ignition Coil & Iridium Spark Plug Service Kit for 2007-2009 Chrysler Aspen

What it Does: Restores factory combustion efficiency, eliminates secondary ignition misfires, and stabilizes idle across all eight cylinders of the 4.7L PowerTech V8 engine.

The Stock Aspen Coil Breakdown

The HG-platform Aspen operates under elevated underhood thermal loads, particularly during towing or extended low-speed idling. Over time, the factory coil-on-plug epoxy potting degrades, leading to internal thermal breakdown and dielectric puncture within the primary and secondary winding layers. This deterioration produces intermittent secondary voltage leaks, spark blow-out under high cylinder pressure, P0300-P0308 diagnostic trouble codes, unburned fuel wash, and accelerated catalytic converter deterioration.

The Engineering Solution

This comprehensive ignition service kit replaces tired factory hardware with upgraded high-dielectric coil assemblies and fine-wire iridium spark plugs. The coil packs feature high-purity oxygen-free copper (OFC) windings insulated with heat-resistant epoxy potting to prevent internal voltage tracking. Paired with laser-welded iridium spark plugs, the package delivers lower required firing voltage, superior thermal resistance, clean flame kernel propagation, and factory-matched blade terminals for plug-and-play installation.

Technical Specifications

Compatibility

• 2007 Chrysler Aspen Limited 4.7L V8
• 2008 Chrysler Aspen Limited 4.7L V8
• 2009 Chrysler Aspen Limited 4.7L V8

The Chrysler Heavy-Haul Caliber

Engineered for full-size SUV duty cycles, this ignition package ensures consistent spark energy under heavy trailering and sustained grade climbs, maintaining peak torque delivery without ignition drop-off.