| Also known as | 40-932 |
| Diagram | Fig. 1 — CYLINDER AND CRANKSHAFT · ref 11 |
| Subsystem | engine bottom |
| Listed in parts books | 1969 |
BSA Exhaust valve guide
Exhaust valve guide, PN 40-0932, fits into the cylinder to guide the exhaust valve stem.
This is an exhaust valve guide, part number 40-0932 (also seen as 40-932 in older listings). It's the sleeve that the exhaust valve stem rides in as it moves up and down inside the cylinder head, keeping the valve stem centered and giving it a wear surface separate from the softer head casting.
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The catalog places this part in the CYLINDER AND CRANKSHAFT figure, so it lives down in the bottom end and cylinder assembly rather than being a top-end-only piece in the record we have. Our listing for it only shows up once, tied to 1969, so we don't have a broader model range on file for it.
Given how thin the record is on this one, the safest move is to call the shop with your head and cylinder details in hand and we'll confirm it's the right guide before you order.
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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