| Diagram | Fig. 2 — CYLINDER AND CRANKSHAFT · ref 41 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1970 |
BSA Stud, cylinder holding
A cylinder holding stud for the BSA B44, used to secure the cylinder barrel to the crankcase.
This is a cylinder holding stud, listed in the CYLINDER AND CRANKSHAFT section of the parts book. It's a BSA part, not a Triumph one - the catalog record ties it to the B44 line rather than anything from the Triumph range we mostly work with here.
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The stud's job is to clamp the cylinder barrel down to the crankcase, so it's a structural fastener rather than anything you'd swap out casually. The catalog shows it appearing across the 1969-1970 model years.
We don't have much more detail on this one beyond where it sits in the book. If you're sourcing this for a B44 rebuild, give us a call and we'll confirm it's the right stud for your particular engine before you order.
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