| Diagram | Fig. 25 — STATOR, TAIL LAMP AND STOP LAMP SWITCH · ref 25 |
| Subsystem | electrical |
| Listed in parts books | 1960–1962, 1964–1967 |
Bulb (6/18 W. Offset pin)
A 6 volt dual-filament tail/stop lamp bulb with an offset pin base, listed as Lucas 384.
This is the bulb that goes in the tail/stop lamp lens, a 6 volt unit with an offset pin base so it seats in the holder one way only. It's a dual-filament bulb, one filament for the running tail light and the other, brighter one that lights up when you hit the brakes. Catalog records show this one appearing across a run of electrical figures tied to stator, magneto, and speedometer/tach assemblies from 1960 to 1967, so it shows up wherever the tail lamp wiring gets documented.
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The part number 384 was carried forward as 384L in later listings, and you'll also see it cross-referenced as 392-384 in some parts books - all the same physical bulb under different catalog numbering. If your lens housing takes an offset-pin bulb rather than a straight bayonet fit, this is the one to reach for.
It's a simple wear item. Keep a spare in the tool roll if you ride at night, since a blown stop filament is an easy thing to get pulled over for.
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