Replacement interface O ring - All Phatheads kits
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Regular price $1.50 USD
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- This is the top seal for the area that interfaces the combustion chamber to the outer head shell. (small red O ring)
- If you need the gasket surface O rings order the kit for your model to get all three O rings.
- It is better to have it and not need it. These seals rarely go bad but they are not available at your local hardware or automotive supply store.