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