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Free Shipping Over $99
Hassle-Free Returns
Support from Yamaha Parts Specialists

Free Shipping over $99

Orders $99 or more ship free within the contiguous U.S.

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Free Shipping over $99

Orders $99 or more ship free within the contiguous U.S.

Shipping Policy

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45-Day Hassle-Free Returns

Not the right fit? No problem. Send it back within 45 days—no questions, no hassle.

Return Policy

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Expert Support When You Need It

We’re here to make your experience smooth, simple, and stress-free—so you can get back to doing what you love.

Talk to a Parts Expert

Yamaha Outboard Engine Thermostat Gaskets

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The Yamaha Marine Outboard Thermostat Gasket is a working seal situated between the thermostat housing and the engine.

Keep your Yamaha outboard motor's cooling system running smooth and cool by replacing your Yamaha outboard thermostat gasket as neeeded.