This spark plug fits the following outboards:

Yamaha: F115, LF115, VF150 / F175 / VF175 / F200 (inline), VfF200, VF225, VF250,VF250X, F250, LF250, F250B, LF250B, 4.2L for all of the following F225 / LF225 / F250 / LF250 / F300 / LF300, V8 for all the following F300, LF300, F350, LF350

Mercury 115 (EFI) FourStroke, 1741cc USA 0T178500 - 1B366822

To confirm compatibility, please check with your owner's manual.

NGK standard plugs are constructed for longer life and optimum performance.

• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties

• Corrugated ribs prevent flashover

• Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer

• Copper core aids in heat removal

• Triple seals prevent leakage