Ignition Coil & Iridium Spark Plugs for Toyota Land Cruiser (1998-2007) 4.7L V8

High-Output Ignition Coil & Iridium Spark Plugs for 1998-2007 Toyota Land Cruiser (2UZ-FE / UZJ100)

What it does: Restores factory ignition performance and eliminates misfires by providing a consistent, high-voltage spark to the 2UZ-FE combustion chamber.

The Stock Land Cruiser Ignition Shortcoming

The 4.7L 2UZ-FE V8 is legendary for its million-mile durability, but its factory ignition system is subject to harsh thermal cycling. Over decades of operation, the OEM coil packs suffer from epoxy degradation and internal winding breakdown, resulting in voltage leaks and a weakened spark. Simultaneously, standard or worn spark plugs increase electrical resistance. This combination causes intermittent misfires under load, rough idling, and hesitation during towing, and decreased fuel efficiency. Ignoring these ignition deficiencies can dump unburnt fuel into the exhaust, eventually destroying the expensive catalytic converters on your UZJ100 chassis.

The Engineering Solution

This comprehensive ignition kit directly addresses these thermal and electrical failures. The replacement ignition coils feature upgraded high-dielectric epoxy potting and premium copper windings, optimizing energy transfer while resisting heat soak within the Land Cruiser's tight engine bay. Paired with performance iridium spark plugs, the system requires less voltage to bridge the spark gap. The ultra-fine iridium center electrodes are highly resistant to spark erosion, ensuring a stable, powerful spark across a wide heat range. This maximizes combustion efficiency, restores lost horsepower, smooths out the idle, and delivers reliable cold-starts regardless of ambient temperatures.

Technical Specifications

Compatibility

• 1998-2007 Toyota Land Cruiser 4.7L V8

The Toyota Durability Standard

Engineered for off-road reliability and heavy-duty towing, this ignition upgrade ensures your 100-Series Land Cruiser continues to deliver the unyielding torque and overland dependability it is famous for.

Common Questions

Will this ignition coil and spark plug kit fit my 1998-2007 Toyota Land Cruiser?
Yes, this kit is engineered as a direct fit for all 1998-2007 Toyota Land Cruiser UZJ100 models equipped with the 4.7L 2UZ-FE V8 engine.

What is included in this ignition kit?
This kit pairs replacement high-output ignition coils featuring high-dielectric epoxy potting and copper windings with matching performance iridium spark plugs.

Does this replace OEM part number 90919-02230?
Yes, these coils are direct replacements for Toyota part number 9091902230 as well as cross-reference numbers UF230T, 673-1303, 5C1196, and C1173.

Will these coils work on earlier Land Cruiser models with an inline engine?
This kit is built specifically for the 1998-2007 100-Series UZJ100 chassis equipped with the 4.7L 2UZ-FE V8 engine.

What symptoms does this ignition upgrade address?
Replacing worn coils and plugs restores lost horsepower, smooths out rough idling, delivers reliable cold-starts, and eliminates intermittent misfires and hesitation under load.