Ignition Coil and Iridium Spark Plugs for Mazda 6 (2014-2020) 2.5L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2014-2020 Mazda 6

What it Does: Restores factory secondary ignition voltage and combustion efficiency across all cylinders to eliminate engine misfires, rough idling, and hesitation under load.

The Stock 6 High-Compression Ignition Breakdown

Operating at an aggressive 13.0:1 compression ratio, the SkyActiv-G 2.5L engine subjects ignition components to intense cylinder pressures and extreme thermal cycling. Over extended mileage, the factory coil packs suffer internal dielectric breakdown as internal epoxy degrades from heat soak, leading to high-RPM spark blowout and micro-arcing. Simultaneously, OEM spark plug gaps widen due to ground electrode erosion, raising the required firing voltage and putting excessive electrical strain on the primary ignition circuit.

The Engineering Solution

This comprehensive tune-up kit features direct-replacement ignition coils engineered with high-dielectric epoxy potting, heavy-gauge copper windings, and high-temp silicone boots to completely isolate voltage and prevent arc-over. Paired with DILKAR7G11GS laser-welded iridium spark plugs, the fine-wire design concentrates electrical energy for a rapid, uniform flame kernel. This setup ensures crisp throttle response, optimized fuel burn, and consistent spark stability under wide-open throttle conditions.

Technical Specifications

Compatibility

• 2014-2017 Mazda 6: 2.5L L4 SkyActiv-G (Sport, Touring, Grand Touring)
• 2018-2020 Mazda 6: 2.5L L4 SkyActiv-G (Sport, Touring, Grand Touring, Signature)

The Mazda Driving Dynamics Caliber

Engineered to uphold Mazda's Jinba Ittai driving philosophy, this ignition kit provides instant throttle response and factory ECU signal parity, ensuring seamless power delivery without setting diagnostic trouble codes (CEL).