DENSO IW20 5306 Iridium Spark Plug — Iridium Iridium Spark Plug - IW20

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

Specs

Terminal Configuration	Threaded Stud
Electrode Tip Material	Iridium
Ground Electrode Shape	Taper Cut
Heat Range	20
Riding Style	Street
Units	Each
Electrical Resistance	5k Ohms
Product Name	Spark Plug
Thread Reach	19.1 mm
Model	IW20
Style	Iridium
Ground Electrode Shape	Grooved
Type	Resistor
Center Electrode Projection	Non-Projected
Center Electrode Type	Fine Wire
Hex Size	20.6 mm
Spark Gap	0.043"
Spark Gap	1.1 mm

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.