| Also known as | T1751 |
| Diagram | Fig. 11 — CLUTCH · ref 2 |
| Subsystem | primary |
| Listed in parts books | 1964–1969 |
Hub
Clutch hub (PN 57-1751, also listed as T1751) for unit-construction Triumph twins, cataloged 1964-1969.
57-1751 is a clutch hub, listed in the clutch section of the parts books for the unit-construction Triumph twins. It's the piece the clutch assembly builds around, carrying the friction and steel plates and tying the clutch into the mainshaft drive. If your parts book still lists it under the older T1751 number, that's the same physical part under its pre-metric-prefix designation.
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This one shows up across catalog listings from 1964 through 1969, so it's a part that stuck around through several seasons of unit-twin production. Beyond that, our records don't spell out more on dimensions or materials, so if you're matching this against a clutch you've got apart on the bench, it's worth double-checking against what you're holding before you order.
Give the shop a call if you want us to confirm fitment for your specific machine before you commit to a hub — clutch assemblies can vary enough between years that we'd rather get it right than have you sending something back.
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