| Also known as | E10280 |
| Diagram | Fig. 4 — CYLINDER HEAD AND ROCKER BOXES · ref 43 |
| Subsystem | engine top |
| Listed in parts books | 1969–1974 |
BOLT,CYL.HEAD T150/A75
Cylinder head bolt for the Triumph T150 / BSA A75 triple, supersedes older number 21-2341.
71-0280 is a cylinder head bolt for the Triumph T150 (and the BSA A75, the badge-engineered version of the same triple). This number replaced the earlier factory part 21-2341, so if your parts book lists that number, this is the current equivalent for the same fitment.
Read more
Cylinder head bolts hold the head down onto the barrels and are what keeps combustion pressure sealed against the gasket. On these triples the head fastener count and torque sequence matter, so it's worth checking your bolt against the others in the set for length and condition before you button things back up.
We don't have much more detail on this one beyond the description and the supersession record, so if you're working from an older parts book and see 21-2341 called out, know that 71-0280 is what you'd order today.
Sorry if we got something wrong here. If you think this information isn't correct, .