Ignition Coil and Iridium Spark Plugs for Mitsubishi Montero Sport (1997-2004) 3.5L

Direct-Fit Ignition Coil and Iridium Spark Plug Service Kit for 1997-2004 Mitsubishi Montero Sport

What it Does: The complete ignition kit replaces aged factory coils and fouled plugs on the 1997-2004 Mitsubishi Montero Sport to eliminate secondary ignition breakdown, cure misfires under load, and restore clean combustion efficiency.

The Stock Mitsubishi Montero Sport Secondary Ignition Breakdown

The 3.5L V6 in the K96W chassis utilizes a wasted-spark distributorless ignition configuration where three dual-tower coil packs drive six cylinders via secondary plug wires. Over sustained thermal cycling, the factory epoxy encapsulation inside the stock coils micro-fractures, allowing secondary voltage to track internally or arc to ground instead of jumping the plug gap under cylinder pressure. Coupled with standard copper or platinum plugs that suffer electrode erosion past 0.044 inches, the weakened dielectric barrier triggers hesitation, catalyst-damaging unburnt hydrocarbons, rough idle, and intermittent P0300 through P0306 DTC faults.

The Engineering Solution

This direct-replacement kit delivers three high-dielectric dual-tower ignition coils wound with high-grade copper windings and encased in vacuum-potted epoxy to resist heat soak and thermal degradation. Paired with six fine-wire iridium spark plugs featuring laser-welded tips and trivalent metal plating, the package delivers a stable spark kernel with lower required firing voltage. The precision-gapped iridium electrodes maintain structural integrity across high-load off-camber operation and high-combustion chamber temperatures without premature gap widening or carbon bridging.

Technical Specifications

Compatibility

• 1999-2004 Mitsubishi Montero Sport XLS 3.5L V6 (6G74)
• 1999-2003 Mitsubishi Montero Sport Limited 3.5L V6 (6G74)
• 2001-2003 Mitsubishi Montero Sport XS 3.5L V6 (6G74)

Frequently Asked Questions

Does this fit the K96W Montero Sport?
Yes, this is a direct fit for the 1997-2004 Mitsubishi Montero Sport equipped with the 6G74 engine.

Are the iridium spark plugs pre-gapped for the 3.5L V6?
Yes, the plugs arrive factory-set to OEM clearance specifications, though verifying electrode gap before installation is standard shop practice.

The Mitsubishi Durability Standard

Built for the severe heat and off-road chassis vibrations demanded by body-on-frame 4WD utility vehicles, this ignition system ensures consistent combustion pressure, reliable cold cranking, and stable towing power under continuous load.