Ignition Coil and Iridium Spark Plugs for Ford F-150 (1998-2000) 4.2L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 1998-2000 Ford F-150

What it Does: The complete ignition kit replaces worn factory ignition components on the 1998-2000 Ford F-150 4.2L to eliminate cylinder misfires, restore lost combustion efficiency, and sharpen throttle response.

The Stock Ford F-150 Secondary Ignition Breakdown

The factory waste-spark coil pack on the 10th-generation PN96 platform suffers from thermal degradation and epoxy insulation breakdown over extended duty cycles. Subjected to sustained underhood heat cycling, the stock housing develops microscopic dielectric fissures, causing high-voltage leakage, secondary winding resistance drift, and intermittent spark blowout under load. Compounding this, factory copper or standard platinum plugs suffer gap erosion and carbon fouling, escalating resistance demands on the coil and triggering P0300 through P0306 DTC misfire codes, rough idling, and unburnt fuel dilution in the exhaust stream.

The Engineering Solution

This comprehensive tune-up kit resolves ignition loss by pairing a high-dielectric replacement coil pack with fine-wire iridium spark plugs. The ignition coil features reinforced thermoplastic casing and vacuum-impregnated internal windings to resist thermal shock and electrical tracking under severe towing loads. The included iridium spark plugs utilize ultra-dense laser-welded fine-wire center electrodes, requiring significantly lower ionization voltage to initiate arc transfer across combustion chambers. This design resists arc erosion, prevents quenching, and maintains consistent flame-front kernel propagation under variable manifold pressures.

Technical Specifications

Compatibility

• 1998 Ford F-150 (Base, XL, XLT) 4.2L V6 Essex
• 1999 Ford F-150 (Base, XL, XLT) 4.2L V6 Essex
• 2000 Ford F-150 (Base, XL, XLT) 4.2L V6 Essex

Frequently Asked Questions

Does this fit the PN96 F-150?
Yes, this is a direct fit for the 1998-2000 Ford F-150 equipped with the 4.2L Essex V6 engine.

Are the iridium spark plugs pre-gapped for the 4.2L Essex V6?
Plugs arrive factory-gapped to OEM specification, though verifying clearance with a feeler gauge prior to torquing is standard practice.

The Ford Workhorse Standard

Engineered to handle grueling payload and towing demands, this ignition upgrade restores low-end torque delivery, stabilizes combustion under load, and ensures dependable all-weather cold-cranking reliability.