Ignition Coil + Iridium Spark Plugs for Plymouth Colt (1993-1994) 2.4L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 1993-1994 Plymouth Colt 2.4L (N34W / 4G64)

What it Does: The direct-fit ignition coil and iridium spark plug kit restores secondary voltage delivery and combustion efficiency on the 1993-1994 Plymouth Colt to eliminate misfires and stabilize idle quality.

The Stock Plymouth Colt Ignition Breakdown

Under repeated thermal cycling, the factory ignition coil on the 4G64 engine suffers internal dielectric breakdown and winding insulation degradation. High heat-soak conditions inside the engine bay break down the primary and secondary epoxy encapsulation, triggering high-resistance bottlenecks, erratic spark energy, and intermittent misfires under load. Concurrently, standard copper or nickel core spark plugs erode rapidly at the electrode gap, escalating the required firing voltage beyond what aging stock coils can sustain. This degradation leads to unburned hydrocarbons, fouled oxygen sensors, sluggish throttle transition, and loss of low-RPM torque.

The Engineering Solution

This ignition service kit addresses high secondary resistance by combining a high-temperature epoxy-insulated ignition coil with fine-wire iridium spark plugs. The replacement ignition coil features heavy-duty copper primary and secondary windings designed to meet or exceed OEM saturation limits, preventing arc-over and thermal collapse. Paired with laser-welded iridium-tipped spark plugs, the assembly minimizes voltage demand across the gap while resisting spark erosion and carbon fouling up to 1,400°F. The low-quenching fine-wire electrode design promotes a stable flame kernel propagation, restoring cold-start reliability and sharp throttle response across the operational powerband.

Technical Specifications

Compatibility

• 1993 Plymouth Colt 2.4L L4 (4G64)
• 1994 Plymouth Colt 2.4L L4 (4G64)

Frequently Asked Questions

Does this fit the N34W Colt?
Yes, this is a direct fit for the 1993-1994 Plymouth Colt equipped with the 4G64 2.4L engine.

Do these iridium spark plugs require pre-gapping before installation?
The iridium plugs arrive pre-gapped, and manual adjustments should be avoided to prevent fracturing the brittle iridium center electrode.

The Plymouth Powertrain Standard

Engineered for bulletproof reliability, these components match Mitsubishi-derived powertrain tolerances to maintain optimal combustion chemistry, eliminate hesitation under throttle, and preserve factory drivability.