Details
| Also known as | 40-978 |
| Diagram | Fig. 1 — CYLINDER AND CRANKSHAFT · ref 34 |
| Subsystem | engine bottom |
| Listed in parts books | 1969 |
BSA Gudgeon pin
Gudgeon pin (piston pin) for the bottom end assembly, listed in the cylinder and crankshaft section.
PN · 40-0978
This is a gudgeon pin, the small hardened pin that runs through the piston and connects it to the connecting rod. It shows up in the CYLINDER AND CRANKSHAFT section of the parts book, which places it down in the bottom end assembly rather than up top with the rings or gasket set.
Not listed anywhere
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
Sign in to request it
We need somewhere to send the price and the photographs.
Pin your bike to check this part fits.
Sorry if we got something wrong here. If you think this information isn't correct, .