Ignition Coil and Iridium Spark Plugs for Mazda 5 (2008-2015) 2.3L

High-Output Ignition Coil and Iridium Spark Plugs for 2008-2015 Mazda 5

What it Does: The Ignition Coil and Iridium Spark Plug Kit replaces degraded ignition components on the 2008-2015 Mazda 5 to eliminate misfires, stabilize idle, and restore crisp throttle response.

The Stock Mazda 5 Ignition Breakdown

Factory coil-on-plug units seated in the CR/CW chassis suffer extreme thermal fatigue due to limited airflow over the MZR 2.3L (L3-VE) valve cover. Prolonged engine bay heat cycling degrades the internal dielectric resin and primary windings, triggering secondary voltage leaks, carbon tracking, and persistent P0300-P0304 trouble codes. Simultaneously, standard copper or worn factory plugs exhibit continuous gap erosion, escalating secondary arc resistance and overworking the coils until spark blowout occurs under load.

The Engineering Solution

This direct-fit overhaul kit upgrades your ignition system with high-grade magnetic cores, reinforced PBT thermoplastic housings, and premium dielectric epoxy potting to resist thermal shock and voltage arcing. Matched with fine-wire iridium spark plugs, the assembly produces a highly focused spark kernel while reducing overall firing voltage requirements. The corrosion-resistant iridium center electrodes prevent premature gap degradation, optimizing flame propagation and combustion stability across all engine loads.

Technical Specifications

Compatibility

• 2008-2015 Mazda 5 Sport 2.3L L4
• 2008-2015 Mazda 5 Touring 2.3L L4
• 2008-2015 Mazda 5 Grand Touring 2.3L L4

Frequently Asked Questions

Does this fit the CR/CW 5?
Yes, this is a direct fit for the 2008-2015 Mazda 5 equipped with the MZR 2.3L (L3-VE) engine.

Do these iridium plugs come pre-gapped?
Yes, they are pre-gapped to factory specifications, though checking gap clearance prior to installation is always recommended.

The Mazda Performance Standard

Engineered to uphold Mazda's responsive driving dynamics, this direct-fit ignition kit restores clean combustion efficiency, smooth idle, and instant throttle pickup without causing check engine lights or electrical hesitation.