| Diagram | Fig. 4 — Engine: Crankcases, Crankcase Breather, Tachometer Drive · ref 32 |
| Subsystem | engine bottom |
| Listed in parts books | 1971–1972 |
Norton Sump Plug
A crankcase sump plug used to drain engine oil, cataloged for 1971-1972.
22850 is a sump plug, the drain fitting at the bottom of the crankcase that lets you get old oil out at service time. It shows up in the crankcase and crankcase breather section of the parts books, alongside the tachometer drive, which tells you where it sits on the engine but not much beyond that.
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The manufacturer code on file for this one is Lucas, but a sump plug is a mechanical fitting, not an electrical part, so don't read too much into that tag. Our catalog record only ties this part to a 1971-1972 span and doesn't spell out which specific model it belongs to.
If you're chasing this one down for a rebuild or a service kit, give us a call and we'll confirm fitment against your engine 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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