| Diagram | Fig. 4 — Engine: Crankcases, Crankcase Breather, Tachometer Drive · ref 27 |
| Subsystem | engine bottom |
| Listed in parts books | 1971–1973 |
Norton Crankcase Stud Nut
Crankcase stud nut for engine bottom end assembly, catalog number 26947.
This is a crankcase stud nut, part number 26947, used to secure the crankcase studs on the engine bottom end. It shows up in the crankcase, breather, and tachometer drive sections of the parts books, which covers the 750 and 850 engine variants in our records.
Read more
The manufacturer tag on this one lists Lucas, but a crankcase stud nut is a plain mechanical fastener, not an electrical part, so don't put much weight on that tag. It's the kind of nut you replace as a matter of course any time the crankcases come apart, since reused nuts on crankcase studs are never as good as fresh ones.
Our catalog record doesn't spell out thread size or material for this one, so if you need exact spec confirmation before ordering, give us a call at the shop.
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.
Sorry if we got something wrong here. If you think this information isn't correct, .