| Also known as | 40-241 |
| Diagram | Fig. 3 — CRANKCASE · ref 43 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1972 |
BSA Gasket — primary case back plate
A gasket for the primary case back plate area, per the crankcase-section catalog listing for PN 40-0241.
Part number 40-0241 is a gasket that the catalog ties to the crankcase area, with the description on file naming it as a primary case back plate gasket. The figure listings that reference this part cover the crankcase and generator area of the engine, so it's a seal used somewhere in that assembly.
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Beyond that, our records are thin. We don't have a spelled-out material or dimension on file for this one, and the catalog entry doesn't pin it to a specific model or year beyond the general span it appears across. If you're matching this up to a case you have on the bench, give us a call and we'll help confirm before you order.
The alternate form 40-241 is just the same part number without the dash-leading zero — same physical gasket.
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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