| Also known as | S1879 |
| Diagram | Fig. 13 — GEARBOX OUTER COVER · ref 25 |
| Subsystem | gearbox |
| Listed in parts books | 1970–1972, 1974, 1976–1980, 1983, 1985 |
COUNTERSUNK SCREW CLUTCH LIFT MECHANISM
A countersunk screw fitted in the clutch lift mechanism on the gearbox outer cover.
This is a countersunk screw used in the clutch lift mechanism, listed in the gearbox outer cover catalog section on Triumph unit-construction twins. It's a small hardware item, but it's the kind of fastener that keeps the lift mechanism assembled and working correctly, so a stripped head or worn slot is worth replacing rather than living with.
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The catalog carries this under 21-1879, with 91771A853 and S1879 as alternate references for the same part. It shows up across a long run of catalog years, which tells you it stayed in the parts books for a good while without a design change.
Because it's a fastener rather than a wear item, keep a couple on hand if you're already into the gearbox outer cover or the clutch lift assembly for other work.
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