| Also known as | 68-153 |
| Diagram | Fig. 1 — CYLINDER HEAD · ref 32 |
| Subsystem | engine top |
| Listed in parts books | 1969–1972 |
BSA Exhaust rocker (right-hand)
Right-hand exhaust rocker arm for the cylinder head, part number 68-0153.
This is the right-hand exhaust rocker arm, part number 68-0153 (also listed as 68-153). It lives up in the cylinder head, where the parts books show it under the CYLINDER HEAD and CYLINDER HEAD - ROCKERS figures.
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A rocker arm like this pivots on the rocker shaft and transfers motion from the pushrod down to the valve, in this case on the exhaust side. Being the right-hand version means it's not interchangeable with its left-hand counterpart - the two sit on opposite ends of the rocker spindle and are shaped to suit their own side.
Our catalog record ties this to appearances across 1969 to 1972, and the manufacturer field on this one points to BSA rather than Triumph. If you're sourcing this for a job, check it against the head you're working on before you order, since rocker arms vary by engine family even when they look similar side by side.
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