| Also known as | 57-1770 |
| Diagram | Fig. 11 — CHAINCASE AND CHAINS · ref 24 |
| Listed in parts books | 1964–1965, 1967–1968, 1970 |
PRIMARY GASKET 650/7 ITAL
Primary chaincase cover gasket, PN 71-7009B (alias 57-1770).
This is the primary gasket listed under 71-7009B, also known by the older number 57-1770. It seals the primary chaincase cover, the housing that carries the primary chain, clutch, and engine sprocket, keeping oil in and grit out.
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Our catalog record on this one is brief and doesn't spell out material, thickness, or exact model fitment beyond the description itself. If you're matching this against your own primary cover, it's worth checking the fit before you order rather than going strictly by the part number.
Call the shop if you want us to confirm this is the right gasket for what you've got on the bench.
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