| Diagram | Fig. 4 — CRANKSHAFT — PISTONS · ref 15 |
| Subsystem | engine bottom |
| Listed in parts books | 1971–1972 |
BSA Crankshaft
A crankshaft listed in the bottom-end parts book, appearing in catalog records from 1971 to 1972.
Part number 71-1346 is a crankshaft, listed under the CRANKSHAFT — PISTONS section of the parts book. The catalog appearances for this number run 1971 to 1972.
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The crankshaft is the rotating heart of the bottom end, carrying the connecting rods and turning crankcase motion into the output that drives the primary and gearbox. It's a piece that takes the flywheel effect and the combustion loads from the pistons and hands that energy on down the driveline.
Our record on this one is brief and doesn't spell out which specific model it was fitted to beyond the years shown. If you're matching this against an engine on the bench, give us a call and we'll confirm fitment before you order.
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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