| Also known as | 06.1705 |
| Diagram | Fig. 2 — Engine: Cylinder, Cylinder Head and Fittings · ref 2 |
| Subsystem | engine top |
| Listed in parts books | 1971–1973 |
Norton CYLINDER BARREL 750 COMM
A 750 Commando cylinder barrel, part 061705 — not a Triumph part despite the catalog listing.
This is a cylinder barrel listed in the parts books under number 061705 (also shown as 06.1705), and it belongs to a 750 Commando, not a Triumph. The description in our records specifically says COMM, meaning Norton Commando, so this is a Norton engine casting even though it lives in a catalog system that also carries Triumph numbers.
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It shows up in the cylinder and cylinder head fittings figures for the 750, which tells us it's the main engine barrel that the head bolts to and the pistons run in, but beyond that our record doesn't give more detail on bore size, fin count, or specific years within the range on file.
If you're trying to match this to a Commando engine, call the shop and we'll go over what you've got before you order, since a casting like this needs to be checked against your actual cases and head.
Sorry if we got something wrong here. If you think this information isn't correct, .