| Also known as | T4390 |
| Diagram | Fig. 12 — GEARBOX SHAFTS AND GEARS—T150V (5 SPEED) · ref 22 |
| Subsystem | gearbox |
| Listed in parts books | 1971–1972 |
Bush
A gearbox bush for the Triumph T150V five-speed gearbox internals, also listed under the older number T4390.
This is a gearbox bush listed under Triumph part number 57-4390, with the older book number T4390 for anyone working from an earlier parts list. It shows up in the catalog for the gearbox shafts and gears layout used on the T150V five-speed gearbox, and also appears among the parts required to fit the optional five-speed gearbox conversion.
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A bush like this sits inside the gearbox to support a shaft and keep it running true, taking up wear so the shaft itself and the housing bore don't get chewed up over time. Given where it turns up in the parts book, this one belongs specifically to the five-speed internals rather than the standard four-speed box.
Our records only tie this to the T150V five-speed gearbox listings from the early '70s catalog appearances. If you're not sure whether your box is the five-speed setup this bush was cataloged for, give us a call before ordering.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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