Description
If you’re running an engine that demands reliability under extreme conditions, DENSO Iridium spark plugs deliver the precision ignition your build requires. The ultra-fine 0.4mm iridium electrodes reduce voltage requirements while maximizing firing performance—giving you stronger combustion and faster throttle response. Built to withstand 4,000°F and engineered with 360° laser welding, these plugs resist fouling and degradation in ways standard plugs simply cannot match.
- Iridium construction, 6x harder
- 0.4mm electrode diameter
- Temperature rating: 4,000°F
- 360° laser-welded electrode
- Tapered ground electrode design
- U-groove flame volume chamber
- Lower voltage requirement
- Extended service life
- MPN: IUH24 5368
- Fits: Vehicle-specific application
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