The silicone/Teflon replacements are hardier and will probably outlast the life of the engine.  The seal is made from a silicone core wrapped with a Teflon outer jacket.  Yes, these can be reused if the outer Teflon jacket has not been compromised.  Better and cheaper than stock OEM replacements!

This is probably the same stuff that Hayes sells for $25/each!

Description: FEP-Encapsulated Silicone O-Ring As568A Dash Number 175
Part Number: 9319K239
Price: $9.94

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