Honda CRF300F/250F NGK SILMAR7D9DS IRIDIUM Spark Plug

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Honda CRF300F/250F NGK SILMAR7D9DS IRIDIUM Spark Plug

Power to the People!!  This plug is practically impossible to find, but we have connections with the factory, so yeah...

A super high-performance spark plug designed specifically for the Honda CRF300F & CRF250F.

Please note - this spark plug is a performance upgrade from the stock the CRF250F spark plug.  But on the CRF300F, it is actually the factory spec stock replacement spark plug.

Here's the scoop directly from NGK:

IRIDIUM IX®

The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® ideal for the performance enthusiast. Iridium’s extremely high melting point is perfectly suited to today’s high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.

  • Fine iridium tip ensures high durability and a consistently stable spark
  • Trivalent metal plating for superior anti-corrosion and anti-seizing properties
  • Outstanding acceleration, high fuel efficiency and durability

Used and highly recommended by the crew here at HyperLite Moto.

Guaranteed to fit all years of the following Honda motorcycles:
2026+ CRF300F
2019-2025 CRF250F