Ignition Coil and Iridium Spark Plugs for Mazda 6 (2003-2008) 3.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2003-2008 Mazda 6

What it Does: Complete 6-cylinder ignition overhaul kit engineered to eliminate engine misfires, restore lost combustion efficiency, and stabilize idle across all RPM bands.

The Stock Mazda 6 Coil Weakness

The AJ 3.0L V6 in the GG chassis mounts Bank 1 ignition coils directly beneath the upper intake plenum where ambient engine bay heat concentrates. Over time, extreme thermal cycling degrades the factory coil-on-plug epoxy potting and dielectric insulation, causing internal shorting, micro-arcing, and carbon tracking. This degradation leads to hesitation under load, poor fuel economy, and P0300-P0306 misfire trouble codes.

The Engineering Solution

This kit features reinforced coil packs constructed with high-grade electrolytic copper windings, high-dielectric epoxy potting, and thermal-resistant thermoplastic housing to resist heat soak and voltage breakdown. Paired with fine-wire iridium spark plugs, the assembly produces a focused, high-energy spark kernel with reduced quenching, ensuring complete air-fuel burn, crisp throttle response, and extended service intervals.

Technical Specifications

Compatibility

• 2003-2008 Mazda 6 s (3.0L V6 DOHC) - Sedan, Hatchback, Wagon
• 2006-2008 Mazda 6 Grand Touring (3.0L V6 DOHC)
• 2006-2008 Mazda 6 Sport (3.0L V6 DOHC)
• 2006-2008 Mazda 6 Touring (3.0L V6 DOHC)

The Mazda Performance Standard

Built for the spirited driving dynamics of the GG chassis, this ignition system ensures immediate spark delivery and smooth high-rev power transfer to keep your V6 operating at factory performance specs.