| Listed in parts books | Not catalogued by year yet |
PISTON,T20 CUB,N.O.S.
New-old-stock piston for the Triumph T20 Cub engine.
This is a piston for the Triumph T20 Cub, listed here as new-old-stock. The T20 Cub is Triumph's small single-cylinder machine, and this piston is a mechanical replacement part for the top end of that engine.
Read more
Our catalog entry on this one is brief, so we don't have more detail on bore size, ring configuration, or which specific Cub variants it fits. If you're rebuilding a T20 top end, call the shop and we'll confirm fitment against your engine before you order.
Being N.O.S. means this is old factory stock rather than a reproduction part, which is worth knowing if you're trying to keep a rebuild period-correct.
Sorry if we got something wrong here. If you think this information isn't correct, .