| Also known as | T4366 |
| Diagram | Fig. 11 — GEARBOX INNER COVER AND SELECTORS · ref 23 |
| Subsystem | gearbox |
| Listed in parts books | 1971–1974, 1976–1980, 1983, 1985 |
Selector fork - layshaft 3rd gear
Layshaft third gear selector fork for the 5-speed gearbox, part number 57-4366 (formerly T4366).
This is the layshaft third gear selector fork, part number 57-4366, also known by its earlier T4366 designation. It's one of the shift forks inside the gearbox that engages third gear on the layshaft, riding in the selector mechanism along with the inner cover components.
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The catalog shows this fork turning up in gearbox inner cover and selector assemblies, and specifically in the 5-speed gearbox parts list for the T150V, as well as general gears/shafts/selectors/starting mechanism figures. That tells us it's a fork built for the 5-speed gearbox setup rather than the earlier 4-speed unit.
If you're rebuilding a gearbox and the shift action feels sloppy or a gear won't hold, a worn or bent selector fork is a common culprit worth checking. Confirm your gearbox is the 5-speed variant this fork is meant for before ordering, since the parts book ties it specifically to that configuration.
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