| Also known as | M40-0129 |
| Diagram | CYLINDER HEAD, EXHAUST PIPE |
| Subsystem | engine top |
| Listed in parts books | Not catalogued by year yet |
ROCKERBOX STUD C15 B40 - 1/4x26x3 oal
Rockerbox stud for BSA C15/B40, 1/4 x 26 TPI, 3 inches overall length.
This is a rockerbox stud, 1/4 inch by 26 TPI thread, 3 inches overall length, as listed for the C15 and B40 models. Those are BSA singles, not Triumphs, so if you're working on a BSA C15 or B40 top end this is one of the studs that holds the rockerbox down to the head.
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We don't have much more detail on this one beyond the basic spec. It's a straightforward fastener - the kind of thing that's easy to snap or strip over the years, so it's worth checking the condition of the ones already in your head before assuming you don't need a replacement.
Give us a call if you want to confirm this is the stud your rockerbox setup needs before ordering - we'd rather get you the right one the first time.
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