Owners who tune and run XT9 machines will find the XRAY 358645 Fuel Tank Cap Rubber Seal a useful spare for keeping tanks airtight. It is engineered to sit snugly and reduce the chance of leaks during extended runs.
The XRAY 358645 works with XT9 fuel tanks including #338601 and #358603. The rubber material is chosen for wear resistance and a consistent seal that helps maintain correct tank pressure for steady engine response.
Push the seal into the cap while aligning it correctly, then check it seats evenly around the rim. Regular checks for compression set or cuts will help you swap the seal before it causes problems on the track.
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