| Also known as | 31780, WW10113 |
| Diagram | Fig. 26 — Head Lights - GROUP 26 · ref 25 |
| Subsystem | electrical |
| Listed in parts books | 1971–1973 |
SWITCH,HEADLAMP 2 POSITION
Lucas two-position headlamp toggle switch, catalog number 34660, superseded by 31780.
This is a Lucas headlamp toggle switch, two position, catalog number 34660, later carried under 31780. It's the small toggle that switches the headlamp beam or on/off function at the headlight shell, and it shows up in the parts books for the Fastback, Fastback L.R., Roadster, Interpol, and Interstate headlamp figures.
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If your parts book still lists 34660, know that the factory superseded it to 31780 down the line, so both numbers point at the same physical switch. It's a straightforward toggle-style unit, not a rotary or key switch, and it's worth checking the wiring and mounting hole on your headlamp shell before ordering since these small Lucas toggles can vary by application even when they look similar.
We don't have a lot more written down on this one beyond the figure references above, so if you've got questions about what's behind your headlamp shell, give us a call before you buy.
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