Outboard Spark Plugs | NGK & Champion for Yamaha, Mercury, Honda, Suzuki & More

Keep your outboard engine running at its best with our range of NGK and Champion spark plugs for 2-stroke and 4-stroke outboard motors.

At SSI Marine, we stock high-quality spark plugs for leading outboard brands including:

• Yamaha
• Mercury
• Mariner
• Honda
• Suzuki
• Tohatsu
• Johnson
• Evinrude

Whether you're carrying out routine servicing or replacing worn ignition components, you'll find the correct spark plugs for a wide range of outboard engines.

Our range includes:

• Genuine NGK Spark Plugs
• Champion Spark Plugs
• Standard Copper Spark Plugs
• Resistor Spark Plugs
• Marine Engine Spark Plugs
• Replacement Spark Plugs for 2-Stroke & 4-Stroke Outboards

All spark plugs are supplied from UK stock with fast dispatch and expert technical support from the SSI Marine team.

If you're unsure which spark plug fits your engine, simply contact us with your engine model and serial number and we'll be happy to help.