| Diagram | Fig. 8 — Chaincases, Chains, Sprockets, Clutch, Alternator · ref 5 |
| Subsystem | primary |
| Listed in parts books | 1971–1973 |
INNER PRIMARY GASKET NORTON COMMANDO
Inner primary gasket for the Norton Commando, sealed between chaincase and crankcase.
This is the inner primary gasket for the Norton Commando, sealing the joint between the primary chaincase and the crankcase. It's a Norton part, not a Triumph part, and it shows up in the parts book under the chaincase, chains, sprockets, clutch and alternator sections since that's the general area it lives in — right where the primary case bolts up to the engine.
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The gasket keeps the oil bath in the primary case where it belongs instead of leaking out at the case joint. Sold each, so if you're doing a full primary rebuild you'll want to figure out how many joints you're sealing before you order.
Our catalog record for this one is thin — it appears across a narrow span of years — so if you've got an older parts book with a slightly different number written down, it's worth double-checking against what you've got before you order.
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