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Part Number 70-9510/A

For Triumph unit 350/500 twins and Tri/BSA triples with worn threads in the exhaust ports. Tapered to .007 inch oversize for use with slightly worn threads.


See also 70-9510/B thread insert for welding into exhaust ports too damaged to be used with oversized exhaust spigots.

See also 70-9516/A, 70-9516/020 70-9516/010 for oversize spigots for preunit Triumph twins and unit 650/750 Triumph twins with worn exhaust port threads.

Tool 222-04 is invaluable for install and removal of both stock and oversize exhaust spigots for all of the above.