This spark plug fits the following outboards:

Yamaha: F9.9, FT9.9, T9.9 (85-03) Cold Climates

Mercury:

• 8 FourStroke Bodensee USA 0H000058 - 0H017349

• 8 FourStroke Bodensee USA 0G760300 - 0T178499

• 9.9 FourStroke USA 0H000058 - 0H016909

This spark plug is also compatible with several Suzuki,  Honda, Johnson, Envirude, and Force Outboards. 

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