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Shop/Category/Fig. 4 — INLET MANIFOLDS — Single Carburetter Models (T90, T100S, T100C) / Twin Carburetter Models (T100T, T100R)/Stud (2 1/16 in. O.A.)
Stud (2 1/16 in. O.A.)
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Also known asS1923
DiagramFig. 4 — INLET MANIFOLDS — Single Carburetter Models (T90, T100S, T100C) / Twin Carburetter Models (T100T, T100R) · ref 1
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Listed in parts books1969

Stud (2 1/16 in. O.A.)

A 2 1/16 in. overall length stud used to mount the inlet manifold on small-unit Triumph twin cylinder heads.

PN · 21-1923

This is a stud, listed in the parts books as 2 1/16 in. overall length, and it turns up in the inlet manifold figures for both the single-carb and twin-carb small-unit Triumph twins. The older reference for it is S1923, which is just the pre-numbering-system form of the same part.

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Studs like this one hold the inlet manifold or carburetor mounting flange to the cylinder head, giving you a fixed threaded post to draw the nuts down on rather than relying on bolts alone. Since it shows up in both the single-carb (T90, T100S, T100C) and twin-carb (T100T, T100R) manifold figures, it's a shared piece of hardware across that manifold family in the catalog.

Our record on this one is limited to that single catalog listing, so if you're chasing exact fitment for your particular head or manifold setup, give us a call and we'll confirm before you order.

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