| Also known as | CH539 |
| Diagram | Fig. 3 — CYLINDER BARREL, EXHAUST PIPES, VALVES · ref 35 |
| Subsystem | engine top |
| Listed in parts books | 1970 |
HEAD GASKET,A50 BSA
Cylinder head gasket for the BSA A50 twin, also known by the older CH539 number.
This is a cylinder head gasket for the BSA A50. It's a straightforward call - the description in our records names the A50 directly, so this one is meant for that engine and not a Triumph, even though it lives in our system alongside Triumph parts. It's cataloged in the cylinder barrel, exhaust pipes, and valves area of the parts book, which is exactly where a head gasket belongs, sealing the joint between the barrel and the head.
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The old-style number for this one is CH539, so if you're working from an older BSA parts book or a box of used parts with that stamped on it, know that it's the same gasket as 68-0828.
We don't have a lot more detail on file for this part beyond that it's the A50 head gasket. If you're not sure which engine you've got, check before ordering - head gaskets aren't interchangeable across different BSA twins.
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