| Also known as | E6923 |
| Diagram | Fig. 5 — CYLINDER BLOCK AND HEAD, T90 · ref 1 |
| Subsystem | engine top |
| Listed in parts books | 1967 |
Cylinder base washer
Cylinder base washer for Triumph T90/T100 engines, PN 70-6923, later superseded by 70-3798.
This is the cylinder base washer listed under Triumph part number 70-6923, also found in older records as E6923. It sits at the joint where the cylinder block meets the crankcase, part of the cylinder block and head assembly.
Read more
Our catalog data ties this washer to figures for the T90 and the T100 twin-carb and single-carb models, all from 1967 appearances. If your parts book lists this application, this is your part; the factory later replaced it with 70-3798, so if you're working from a newer parts book you may see that number instead.
A base washer like this seals the base joint and helps the cylinder block seat correctly against the crankcase. Because the factory superseded it, check which number matches your parts book before ordering so you get the currently supplied version.
Sorry if we got something wrong here. If you think this information isn't correct, .