| Also known as | T1703 |
| Diagram | Fig. 7 — GEARBOX INNER COVER AND SELECTORS · ref 13 |
| Subsystem | gearbox |
| Listed in parts books | 1964–1965 |
GEARBOX INNER COVER
Gearbox inner cover carrying the selector mechanism, catalog PN 57-1703 (also listed as T1703).
57-1703 is the gearbox inner cover, the plate that sits behind the outer gearbox cover and carries the selector mechanism inside the box. It shows up in the parts book under the figure for GEARBOX INNER COVER AND SELECTORS, so if you're pulling the gearbox apart to sort out the selectors or camplate, this is the cover you're looking at.
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On older parts books you may see this listed as T1703 - same physical part, just the earlier letter-prefix numbering before Triumph moved to the 57- style part numbers.
Our catalog record ties this one to appearances from 1964 to 1965. If your box is outside that span, it's worth checking the cover against your gearbox before ordering to make sure it's the right one for your box.
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