| Listed in parts books | Not catalogued by year yet |
NOS BSA M33 B31 B32 B33 B34 CRANKSHAFT DRIVE SIDE SHAFT
NOS crankshaft drive side shaft for BSA M33, B31, B32, B33, and B34 models.
This is a New Old Stock crankshaft drive side shaft for the BSA M33, B31, B32, B33, and B34 models. It's a genuine unused factory part that's been sitting in storage rather than something remanufactured to fit.
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Despite the Triumph part number format in our system, this shaft is BSA-specific, and the catalog description names the exact BSA models it belongs to. If you're rebuilding a crankshaft assembly on one of these bikes, this is the drive side shaft that goes with it.
We don't have much more detail on this one beyond what's in the description. Give the shop a call to confirm fitment against your specific engine before you order, especially given how many small variations show up across these BSA singles over the years.
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