| Also known as | GAS67 |
| Listed in parts books | Not catalogued by year yet |
TIMING COVER GASKET - M33 B31/4
Timing cover gasket for BSA pre-unit singles, listed against the M33 and B31/4.
This is a timing cover gasket for BSA pre-unit singles, listed against the M33 and B31/4 in the catalog records. It seats between the timing cover and the crankcase to keep oil where it belongs while the timing gears and pinions do their work behind the cover.
Read more
Our records don't have much detail beyond that basic catalog line, so we can't speak to broader fitment across the whole pre-unit singles range from here. If you're working on a BSA single and need this gasket, check your parts book against the numbers you've got, or give us a call and we'll help confirm before you order.
This is a paper-type gasket item, the kind that's smart to replace any time the timing cover comes off, since reusing an old one rarely seals up right a second time.
Sorry if we got something wrong here. If you think this information isn't correct, .