| Also known as | E4671 |
| Diagram | Fig. 6 — CYLINDER BLOCK AND HEAD · ref 54 |
| Subsystem | engine top |
| Listed in parts books | 1964–1970, 1974 |
ROCKER BOX CLIP 500 TRIUMPH
Wire retaining clip that holds the rocker box inspection cap on Triumph 350/500 unit twins.
This is the small wire clip that holds the rocker box inspection cap in place on Triumph's 350 and 500 unit twins. It's a simple retaining clip, sold individually, and its job is to keep the little cap seated over the rocker box opening so it doesn't rattle loose or walk off the top of the head.
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In the parts books it turns up under the CYLINDER BLOCK AND HEAD figures for the 3TA, T90, T100S, T100C, T100R, and T100T, so it's a part that spans a number of the 350/500 unit-twin cylinder head listings across those catalog entries. The legacy number for this one was E4671 before the modern 70-4671 numbering took over.
It's a cheap piece to keep on hand since these clips are easy to lose during a valve inspection or a top-end job, and a missing one just means the cap won't stay put. Nothing fancy about it, but it's worth having a spare or two in the parts drawer.
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