| Diagram | Fig. 5 — 850 Engine: Crankcases, Filter, Breather, Tachometer Drive · ref 38 |
| Subsystem | engine bottom |
| Listed in parts books | 1975 |
Norton Tube, Breather
Breather tube, PN 06-4200, for the Norton engine crankcase breather system.
This is the breather tube listed as 06-4200, catalogued under Engine: Crankcases, Filter, Breather, Tachometer Drive. The manufacturer designation and figure title point to a Norton engine, not a Triumph, so if you're parting a Triumph twin, this isn't your part.
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A breather tube in this position routes crankcase gases out of the engine, working alongside the crankcase breather and filter shown in the same figure grouping. Beyond that, our catalog record on this one is brief - a single line with a single appearance.
We don't have more detail on this one beyond the figure it's grouped with. Call the shop and we'll confirm fitment before you order.
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