Ignition Coil and Iridium Spark Plugs for Mitsubishi Montero Sport (1997-2003) 3.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 1997-2003 Mitsubishi Montero Sport

What it Does: The Ignition Coil and Iridium Spark Plug Kit directly replaces worn factory ignition components on the 1997-2003 Mitsubishi Montero Sport to eliminate cylinder misfires, restore lost combustion pressure, and optimize fuel economy.

The Stock Mitsubishi Montero Sport Ignition Breakdown

On the K90 platform (K86W/K96W chassis) equipped with the 3.0L 6G72 SOHC V6, factory ignition components endure prolonged exposure to extreme underhood thermal cycling. Over mileage and time, OEM epoxy coil potting degrades, producing micro-fractures in the housing that cause high-voltage dielectric breakdown and internal secondary winding shorting. Simultaneously, standard copper or nickel spark plugs suffer electrode erosion and wide gap drift, putting excessive load on the primary ignition circuit. This manifests as hesitation under load, rough idle vibration, elevated hydrocarbon emissions, and active P0300 through P0306 diagnostic trouble codes.

The Engineering Solution

Engineered as an exact drop-in overhaul, this kit upgrades secondary circuit reliability through high-dielectric silicone boots and premium copper winding architecture sealed in vacuum-injected thermal epoxy to resist heat soak and oil contamination. Matched with fine-wire iridium spark plugs featuring laser-welded tips and platinum ground pads, the system reduces required firing voltage while producing a concentrated, stable plasma flame kernel. This setup prevents spark scatter under cylinder pressure, provides superior flame front velocity, and restores crisp throttle response. Directly replaces OEM part numbers MD314582, MD314583, UF196, and UF197.

Technical Specifications

Compatibility

• 1997-2003 Mitsubishi Montero Sport ES 3.0L V6
• 1997-2003 Mitsubishi Montero Sport LS 3.0L V6
• 1997-2003 Mitsubishi Montero Sport XLS 3.0L V6
• 1999-2001 Mitsubishi Montero Sport Limited 3.0L V6

Frequently Asked Questions

Does this fit the K90 Montero Sport?
Yes, this is a direct fit for the 1997-2003 Mitsubishi Montero Sport equipped with the 6G72 3.0L V6 engine.

Do these iridium spark plugs require manual gapping before installation?
No, these iridium plugs are pre-gapped at the factory; manual gap adjustment tools can fracture the delicate iridium center wire.

The Mitsubishi Durability Caliber

Built for the rugged demands of body-on-frame utility and trail towing, this complete ignition package ensures consistent cold starts, robust high-load torque stability, and long-term secondary circuit protection across demanding off-road conditions.