Ignition Coil + Spark Plugs for Toyota Tundra (2000-2004) 4.7L

Direct-Fit Ignition Coil and Spark Plug Kit for 2000-2004 Toyota Tundra (XK30)

What it Does: The Ignition Coil and Spark Plug Kit restores complete secondary ignition voltage and combustion efficiency on the 2000-2004 Toyota Tundra to resolve misfires, rough idle, and unburned fuel loss.

The Stock Toyota Tundra Ignition Breakdown

Extended thermal cycles in the engine bay cause dielectric breakdown of the factory coil housing and thermal degradation of the internal copper windings. Over time, micro-cracks form in the epoxy encapsulation of aged OEM coils, while plug gap erosion steadily increases resistance. On high-mileage 2UZ-FE engines, this breakdown triggers secondary voltage leakage, intermittent misfires under load (DTC P0300–P0308), diminished fuel economy, and cataloged catalytic converter degradation.

The Engineering Solution

This comprehensive service kit pairs heavy-duty coil packs featuring high-dielectric epoxy potting and premium magnetic core laminations with matched platinum spark plugs. The coils resist thermal breakdown and sustain required discharge energy across extreme duty cycles, while the platinum plug electrodes maintain precise gap tolerances and resist fouling. Designed to plug directly into the factory wiring harness without adaptation, this package restores crisp throttle response and clean flame propagation.

What's Included

• 8 Energy Ignition Coils (Replacement for UF230)
• 8 Platinum Spark Plugs

Technical Specifications

Compatibility

• 2000-2004 Toyota Tundra 4.7L V8

Frequently Asked Questions & Fitment Warnings

Does this fit the XK30 Tundra?

Yes, this is a direct fit for the 2000-2004 Toyota Tundra equipped with the 2UZ-FE 4.7L V8 engine; it does not fit 3.4L V6 models.

Are spark plug wires required for installation?

No, the 2UZ-FE utilizes an independent coil-on-plug setup where each coil connects directly to the plug terminal, eliminating high-tension ignition wires.

The Toyota Truck Standard

Engineered to endure severe towing demands and rough terrain, this replacement ignition package maintains dependable combustion stability and payload capacity under sustained thermal stress.