Description
Iridium spark plugs deliver superior ignition performance by operating at extreme temperatures while demanding less voltage from your ignition system. The shrunk 0.4mm electrodes reduce firing requirements, translating to faster, more consistent combustion across a wider operating range. If you’re running a high-performance engine or simply want plug longevity that outlasts platinum alternatives, iridium is the measurable upgrade.
- Iridium electrodes: 6x harder
- Temperature rating: 4,000°F
- Electrode diameter: 0.4mm
- Laser welded: 360° seal
- Voltage requirement: Reduced
- Ground electrode: Tapered U-groove
- Flame kernel: Enlarged volume area
- Wear resistance: Superior durability
- MPN: 5307
- Application: Vehicle-specific fitment
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