As low as $3.15/mo with or . (Pay in 4 interest-free payments)
DENSO Iridium Spark Plug (IU22) — Resistor Type Upgrade ignition performance with the DENSO Iridium Spark Plug — Iridium , model IU22 . Built for reliable starts, strong combustion, and long-lasting durability, this fine-wire iridium plug helps deliver consistent spark even under demanding driving conditions. Key Features High-heat durability: Iridium electrodes resist extreme temperatures up to 4,000°F . Advanced electrode design: Ultra-thin 0.4mm iridium electrodes can reduce voltage requirements while improving firing performance. 360° laser-welded seal: Laser-welding forms a tight, wear-resistant bond for harsh environments. Optimized flame kernel: Taper cut and U-groove ground electrode create a larger volume area for the flame’s center. Specifications Electrode Tip Material: Iridium Ground Electrode Shape: Taper Cut / Grooved Spark Gap: 0.9 mm (0.035") Type: Resistor (Electrical Resistance: 5k Ohms ) Center Electrode Type: Fine Wire Heat Range: 7 Terminal Configuration: Threaded Stud Hex Size: 16 mm Thread Reach: 19.1 mm Center Electrode Projection: Non-Projected Style / Riding Style: Iridium / Street & Off-Road Units: Each
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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