| Also known as | WW11032 |
| Diagram | Fig. 22 — Handlebars, Disc Brake Master Cylinder and Hose Group · ref 23 |
| Listed in parts books | Not catalogued by year yet |
HYDRAULIC BRAKE SWITCH - UK MADE LFH - NOT LUCAS OR WEW Which are prone to leak (60-7155)
Hydraulic front brake light switch for disc-brake Triumph and Norton models, UK-made, later renumbered 06-1934.
This is the hydraulic front brake light switch, PN 34619, used on Triumph and Norton machines that got a hydraulic front disc brake. The switch threads into the brake line and senses the pressure spike when you grab the lever, closing the circuit that lights up the brake lamp. Later factory records show this part renumbered as 06-1934, so if your parts book lists that number instead, you're looking at the same switch.
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The catalog note on this one is specific: it's the UK-made version, and it flags that other switches sold under Lucas or WEW branding for this same application are known to leak. Worth keeping in mind if you're sourcing a replacement and want to avoid a switch that weeps brake fluid at the connection.
We don't have detailed fitment history beyond that on file for this listing. If you're not sure which brake switch your bike takes, bring in the old one or check your parts book against the numbers here — 34619, 06-1934, and the alias WW11032 all point to the same physical switch.
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