| Diagram | Fig. 36 — HEADLAMP AND FLASHER LAMPS · ref 17 |
| Subsystem | electrical |
| Listed in parts books | 1968–1970, 1976–1980, 1983, 1985 |
281 Bulb, warning light
The 281-type warning light bulb used in Triumph headlamp, binnacle, and switch indicator lamps.
99-0537 is the 281 warning light bulb used in the small indicator lamps on the headlamp shell, instrument binnacle, and handlebar switch area of Triumphs across a long production run. This is the little bulb behind the amber or green lenses that tell you things like oil pressure, high beam, or turn signal status - not the main headlamp bulb itself.
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It shows up across a wide spread of electrical figures in the parts books, from headlamp and flasher lamp assemblies to the binnacle and oil warning light setups, which tells you it's a common item used in more than one spot on the same machine. If you're chasing down a warning light that won't light or stays on, this bulb is one of the first cheap things to check before you start pulling switches or wiring apart.
We don't have more detail on this one beyond the bulb type number itself, so if you're not sure which lamp housing you're working on, bring it in or give us a call and we'll help sort out which lens and bulb combination you need.
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