Denso Iridium Spark Plug (cold plug) Fits: > 99-17 Twin Cam 86-21 XL Sportster 94-07 Buell models

Denso Iridium Spark Plug Fits: > 99-17 Twin Cam,  86-21 XL Sportster,  94-07 Buell models

• 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

A ‘hot’ plug has more insulation and so retains more heat at its tip, whereas a ‘cold’ plug has less insulation and so the tip remains at a lower temperature.

SOLD EACH

Part Number:

Cooler plug

• IXU24: For 99-17 Twin Cam
• IXU24: For 86-21 XL
• IXU24: For 94-07 Buell models