| Also known as | E1435 |
| Diagram | Fig. 5 — CYLINDER BLOCK AND HEAD, T90 · ref 49 |
| Subsystem | engine top |
| Listed in parts books | 1960–1962, 1964–1971 |
ROCKER NUT,CHROME PLATED - 3/8x26 CEI (add S for Stainless)
Chrome-plated 3/8 x 26 CEI rocker nut, PN 70-1435, also cataloged as E1435 and formerly 70-4329, with a stainless option available.
This is the chrome-plated rocker nut, 3/8 x 26 CEI thread, catalog number 70-1435 (also seen under the older number 70-4329 and the legacy letter-prefix form E1435). It's a small dome-style nut that shows up repeatedly in the cylinder head and block figures across a wide range of catalog entries, and it also turns up in oil tank and front wheel listings in our records, so it's clearly a nut Triumph reused in more than one spot rather than a single-application item.
Read more
The description calls out that a stainless version was also cataloged, ordered by adding an S suffix to the part number. Beyond the thread spec and finish options given in the catalog line, we don't have more detail on exactly which models or years each application covers - the figure titles span a long list of cylinder block/head drawings plus oil tank and front wheel entries, but nothing in our data pins this down to one specific bike.
If you're replacing rocker nuts and want to match the original hardware, this is the number to order against. Call the shop and we'll confirm fitment against your specific engine before you order, since the catalog spread on this one is broad.
Sorry if we got something wrong here. If you think this information isn't correct, .