Genuine part.
Denso's IW27 iridium spark plug, a warmer heat range in the IW series for kart engines. The iridium centre electrode gives a strong, consistent spark and a service life standard plugs cannot match.
Heat range is a tuning decision: a plug too cold fouls, a plug too hot risks the engine. If you are moving between the IW27, IW29 and IW31, do it deliberately and read the plug colour after each change.
Buy from Velocity Kart Shop at Eastern Creek, Sydney — shipped Australia-wide, with advice from the race workshop if you want a second opinion on plug choice.
Details
Fitment questions? Call 0488 465 278 — we race this gear every weekend.
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