| Also known as | 82-5465 |
| Diagram | Fig. 26 — REAR BRAKE · ref 39 |
| Subsystem | brakes |
| Listed in parts books | 1976–1979 |
REAR MASTERCYLINDER RESERVOIR ASSY - TRIUMPH
Rear brake master cylinder reservoir assembly for hydraulic rear disc setups.
This is the rear brake master cylinder reservoir assembly, the fluid reservoir that sits atop the rear master cylinder and feeds it hydraulic fluid on hydraulic rear disc brake setups. It shows up in the parts book under the REAR BRAKE figure, and it's a complete ready-to-mount assembly rather than a single seal or cap.
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On these bikes the reservoir is what keeps the master cylinder fed and sealed, and it's a part that takes abuse from old, contaminated fluid and general age. If yours is weeping fluid, looks corroded, or won't hold a level, this is the piece that gets swapped rather than pieced back together from individual seals.
Our catalog entry for this one is thin — it only turns up in a single listing tied to 1978 — so if you're not sure this matches what's on your bike, give us a call with your frame number or a photo before you order. You may also see this part referenced as 82-5465, an alternate number for the same assembly.
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