Ignition Coil & Iridium Spark Plugs for Dodge Magnum (2005) 5.7L V8

High-Output Ignition Coil & Iridium Spark Plugs for 2005 Dodge Magnum

What it Does: This complete ignition system overhaul replaces aging factory coils, wires, and spark plugs to restore proper combustion, eliminate misfires, and stabilize idle voltage on the 5.7L Hemi.

The Stock Magnum Ignition Shortcomings

The factory ignition system on the 5.7L Hemi V8 is subjected to severe thermal cycling over its lifespan. As the OEM epoxy and internal windings break down from extended engine bay heat soak, electrical resistance increases, leading to weak spark delivery. This degradation causes the familiar Hemi shudder—rough idle, hard starting, and unburned fuel triggering misfire codes. Furthermore, standard factory spark plugs degrade quickly under heavy load, losing their precise electrode gap, which results in rapid carbon fouling and compromised fuel efficiency.

The Engineering Solution

This comprehensive 32-piece ignition kit directly addresses these thermal and electrical vulnerabilities. The upgraded ignition coils are wound with high-grade copper internal wire and sealed with advanced dielectric epoxy to resist heat soak and voltage leaks. This ensures a consistent, high-energy voltage transfer directly to the spark plug electrodes. Paired with superior Iridium spark plugs, the system benefits from a much higher melting point and superior shape retention compared to standard OE plugs. The dual-spark Hemi design relies on this concentrated, hotter spark to efficiently burn off combustion chamber deposits and prevent fouling. The included robust spark plug wires ensure zero voltage leakage, providing a direct, non-destructive replacement that restores factory power delivery, smooths out engine idle, and optimizes fuel consumption.

Technical Specifications

Compatibility

• 2005 Dodge Magnum 5.7L V8

The Dodge Muscle Standard

Built for the heavy demands of modern American muscle, this ignition overhaul ensures your Hemi V8 maintains relentless power delivery, immediate throttle response, and a smooth, commanding idle.