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Description
DENSO Iridium Spark Plug — IUH27 (Resistor, 16 mm) Upgrade ignition performance with the DENSO Iridium Spark Plug built for demanding off-road use. Featuring ultra-durable iridium electrodes and precise fine-wire design, this plug helps deliver strong starts, stable firing, and long-lasting service life. Key Features Heat resistance to 4,000°F for extreme conditions Iridium is six times harder than platinum to resist electrode wear 0.4 mm iridium electrode supports lower voltage demands and improved firing performance 360° laser welding helps create a durable seal that resists wear Ground electrode includes taper cut and U-groove for a larger flame-center volume area Specifications Brand/Product: DENSO Spark Plug , Iridium Type: Resistor , Electrical Resistance: 5k Ohms Riding Style: Off-Road Hex Size: 16 mm Thread Reach: 19.1 mm Model: IUH27 Spark Gap: 0.035" (0.9 mm) Center Electrode: Fine Wire , Non-Projected Ground Electrode: Grooved / Taper Cut Heat Range: 24 Terminal Configuration: Removable Nut Units: Each
Features
Six times harder than platinum, iridium withstands temperatures up to 4,000°F
Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves
360° laser welding of electrode provides a seal that resists wear even in the worst conditions
Ground electrode features a tapered cut and U-groove that form a large volume area for the flame's center
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