| Listed in parts books | Not catalogued by year yet |
HEADLIGHT BULB 6V 25/25W (P15D base)
6-volt 25/25 watt headlight bulb with a P15D base for older Lucas-style headlamp shells.
Part 3625 is a 6-volt headlight bulb, 25/25 watt, with a P15D base. It's the bulb that goes in the headlamp shell on the older 6-volt electrical systems, giving you both the low beam and high beam filaments in the one bulb.
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We don't have much more detail on this one beyond the spec itself, since it's a straightforward consumable rather than a part with a long catalog history. If you're not sure whether your bike runs 6-volt or 12-volt, or whether your headlamp shell takes this base type, give us a call before you order.
Worth keeping a spare in the toolbox since bulbs fail without warning and you don't want to be caught out on a night ride with no headlamp.
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