| Also known as | T2167 |
| Diagram | Fig. 2 — CRANKCASE · ref 34 |
| Subsystem | engine bottom |
| Listed in parts books | 1970–1971, 1974, 1976–1980, 1983, 1985 |
Drain plug (with level tube)
Triumph gearbox drain plug with built-in level tube, part number 57-2167.
This is the drain plug for the gearbox, and it does double duty as a level check — it's got a tube built into it so when you pull it out you're checking oil level as much as draining the case. The catalog shows it under the CRANKCASE figure heading, and the legacy part number for this one was T2167 before the numbering switched over to 57-2167.
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It's a Triumph part, and the catalog record for this one spans a run of years from 1970 into the mid-80s across several appearances, so it shows up on more than one gearbox casting over that stretch. If you're not sure which plug your case takes, pull yours and compare threads before ordering rather than going by year alone.
Worth keeping a spare on hand since these plugs live in oil and get worked loose with a wrench on a regular basis — a stripped or rounded-off plug is an annoying way to lose an afternoon.
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