Details
| Also known as | 40-25, 70-8025 |
| Diagram | Fig. 3 — CRANKCASE · ref 9 |
| Subsystem | engine bottom |
| Listed in parts books | 1968–1971 |
OIL SEAL CRANK DS BSA 250
Double-sided crankshaft oil seal for a BSA 250, catalog number 40-0025, later renumbered 70-8025.
PN · 40-0025
Current factory number 70-8025 — same part, sold under this listing.
This is a crankshaft oil seal, double-sided, listed in our records under part number 40-0025 and carried forward under the later factory number 70-8025. The description on file ties it to a BSA 250, so this one belongs on a BSA single, not a Triumph twin — the manufacturer tag we've got attached to it is off.
$7.95
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