| Also known as | T3619 |
| Diagram | Fig. 12 — INNER AND OUTER CHAINCASE · ref 18 |
| Subsystem | primary |
| Listed in parts books | 1969 |
Tensioner adjuster plug
Primary chaincase tensioner adjuster plug, seals the chain-tension adjustment point on the inner/outer chaincase.
This is the tensioner adjuster plug that lives in the primary chaincase, listed in the parts book under the INNER AND OUTER CHAINCASE section. It works alongside the primary chain tensioner mechanism, sealing or capping the adjuster point so you can get in to set chain tension without the chaincase leaking oil everywhere.
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The old parts book number for this one was T3619, which you'll still see printed in some older catalogs and on parts pulled from earlier stock. Our records show it appearing once, tied to 1969, so we don't have a long fitment history to draw on for this particular listing.
If you're chasing this for a chaincase job, it's worth checking what's actually on your bike before ordering — the catalog record here is thin, so give the shop a call and we'll help confirm fitment.
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