| Diagram | Fig. 2 — CYLINDER AND CRANKSHAFT · ref 37 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1970 |
BSA Cylinder barrel
A cylinder barrel casting from the CYLINDER AND CRANKSHAFT figures, cataloged 1969-1970.
This is a cylinder barrel, part number 41-0787, showing up in the CYLINDER AND CRANKSHAFT figures across catalog listings from 1969 to 1970. The barrel is the core casting the pistons run in, bolted down to the crankcase and topped by the head - it's the backbone of the bottom end and takes all the wear from piston travel.
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Our records tag this one under a BSA-style listing, so if you're working on a Triumph engine, double check this is actually the casting you need before ordering - the description we have is short and doesn't spell out which specific engine family it belongs to.
Given how little detail we have on file beyond the figure title and year span, give the shop a call with your engine's numbers on hand and we'll confirm this is the right barrel before you commit to it.
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.
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