Ignition Coil + Iridium Spark Plugs for Mitsubishi Galant (1998-2003) 2.4L

High-Output Ignition Coil and Iridium Spark Plug Kit for 1998-2003 Mitsubishi Galant (EA3A)

What it Does: The Ignition Coil and Iridium Spark Plug Kit replaces worn factory ignition components on the 1998-2003 Mitsubishi Galant to eliminate misfires, stabilize idle, and restore crisp throttle response.

The Stock Mitsubishi Galant Ignition Breakdown

The factory 4G64 utilizes a waste-spark ignition architecture where two coils fire all four cylinders. Because each coil discharges on both compression and exhaust strokes, it sustains double the duty cycle and thermal stress of standard sequential coils. Over time, persistent underhood heat soak in the EA3A chassis degrades the internal coil epoxy potting and breaks down secondary winding insulation. This thermal fatigue causes internal dielectric arcing, secondary voltage drops, and spark blowout under load. Paired with aged spark plugs suffering from electrode erosion and widened gaps, the system exhibits rough idling, hesitation during acceleration, and persistent P0300-P0304 trouble codes.

The Engineering Solution

This service kit restores spark consistency by combining high-dielectric waste-spark ignition coil packs with fine-wire iridium spark plugs. The replacement ignition coils feature premium copper windings insulated with thermal-resistant epoxy potting to prevent carbon tracking and voltage bleed under demanding operating temperatures. The accompanying iridium plugs utilize an ultra-fine center electrode that requires lower secondary discharge voltage, concentrating electrical energy to accelerate flame kernel propagation. This configuration optimizes combustion chamber burn rates, ensures consistent ignition timing across all cylinders, and restores peak volumetric efficiency to the 2.4L platform.

What's Included

• 2x Direct-Fit Waste-Spark Ignition Coils
• 4x Fine-Wire Iridium Spark Plugs

Technical Specifications

Compatibility

• 1998-2003 Mitsubishi Galant 2.4L L4 Naturally Aspirated

Frequently Asked Questions & Fitment Warnings

Does this fit the EA3A Galant?

Yes, this is a direct fit for the 1998-2003 Mitsubishi Galant equipped with the 2.4L 4G64 engine. This kit does not fit 3.0L 6G72 V6 models or universal engine applications.

Why does this kit only include two coils for a 4-cylinder engine?

The 2.4L 4G64 utilizes a waste-spark ignition setup where two dual-tower coil packs fire cylinder pairs (1-4 and 2-3); spark plug wires are routed separately to complete the secondary circuit.

The Mitsubishi Performance Caliber

Engineered to handle sustained high-RPM operation and daily commuting alike, this kit brings factory-calibrated ignition performance back to your classic JDM-engineered powertrain.