| Diagram | Fig. 16 — CARBURETTOR · ref 13 |
| Subsystem | fuel |
| Listed in parts books | 1968–1970 |
"O" ring (622/101)
An Amal carburetter O-ring, catalog number 99-0522, also listed as 622/101.
This is an O-ring listed under Amal carburetter figures, part number 99-0522, also carried under the Amal reference 622/101. It shows up across several catalog entries for carburetter assemblies including the T90, T100S, T100C, T100T, and T100R listings from the late 1960s.
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An O-ring in a carburetter assembly is there to seal a joint against fuel or air leakage, keeping the mixture circuit tight where two components meet. Because these show up in multiple carb variants in the parts books, it's worth checking exactly which carburetter assembly you're working on before ordering, since carb specs varied across those models.
If your parts book lists this under the 622/101 number instead, that's the same part — Amal component numbers carried straight through Triumph's catalog listings. Give us a call if you want to confirm which carb rebuild kit or gasket set this pairs with for your application.
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