Ignition Coil + Spark Plugs for Saturn Ion (2004-2007) 2.0L

High-Output Ignition Coil and Spark Plug Kit for 2004-2007 Saturn Ion (GM Delta)

What it Does: The ignition coil and spark plug kit replaces degraded factory ignition components on the 2004-2007 Ion Red Line to eliminate boost-induced misfires and restore combustion efficiency.

The Stock Saturn Ion Dielectric Breakdown and Spark Blowout

Under continuous positive manifold pressure from the Eaton M62 supercharger, the factory ignition system on the 2.0L LSJ engine is pushed to its thermal and electrical limits. Factory coil-on-plug boots degrade over time due to intense cylinder head heat soak, causing dielectric puncture and intermittent voltage arcing to the cylinder head rather than the plug gap. Combined with widened spark plug gaps from normal electrode erosion, this breakdown triggers random high-RPM misfires (DTC P0300), erratic idle, and noticeable hesitation under wide-open throttle.

The Engineering Solution

This direct-fit overhaul kit restores primary and secondary ignition stability. The four replacement coil-on-plug assemblies feature high-grade magnetic core windings sealed in thermal-shock-resistant epoxy to prevent internal insulation failure and cross-firing under load. Paired with NGK G-Power fine-wire platinum spark plugs (OE #7092), the assembly lowers required firing voltage, accelerates flame kernel development, and guarantees reliable arc discharge against elevated cylinder pressures without spark blowout.

Technical Specifications

Compatibility

• 2004 Saturn Ion Red Line (2.0L L4 Supercharged)
• 2005 Saturn Ion Red Line (2.0L L4 Supercharged)
• 2006 Saturn Ion Red Line (2.0L L4 Supercharged)
• 2007 Saturn Ion Red Line (2.0L L4 Supercharged)

Frequently Asked Questions

Does this fit the GM Delta Ion?

Yes, this is a direct fit for the 2004-2007 Saturn Ion equipped with the 2.0L LSJ supercharged engine.

Are these spark plugs pre-gapped for supercharged operation?

They are factory gapped, but always measure and verify clearance against factory service specs (0.040–0.042 in) prior to torquing.

The Saturn Red Line Caliber

Engineered to handle forced-induction demands, this ignition overhaul maintains crisp throttle response, sharp revs, and stable power delivery on the street or the track.