| Also known as | E3302 |
| Diagram | Fig. 5 — CYLINDER BLOCK AND HEAD TR7RV · ref 31 |
| Subsystem | engine top |
| Listed in parts books | 1960–1971, 1974, 1976–1980, 1985 |
| Also fits (as replacement) | 1964–1971 · for GS127 |
Plain washer
A plain steel washer used at the cylinder head and rocker box studs on Triumph twins, also listed under the older factory number GS127.
70-3302 is a plain washer used at the cylinder head and rocker box area on Triumph twins, showing up over and over in the CYLINDER BLOCK AND HEAD figures across a wide span of models and years. It's the kind of small fastener that gets overlooked until you're missing one during a top-end job, and given how many different cylinder head figures it appears in, it's worth having a few on hand before you start pulling studs and nuts.
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The older factory number for this same washer was GS127, so if you're working from an earlier parts book or pulling one off a bike built before the renumbering, that's the number you might see stamped or listed instead. Same physical part either way.
It also turns up in a couple of unrelated figures in the catalog, including tail lamp and stop lamp switch and rear brake listings, which is common for a generic plain washer used as a fastener aid rather than a dedicated single-purpose part. Bring the old one to the counter if you're not sure which fastener it belongs under on your engine.
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