| Also known as | E4153 |
| Diagram | Fig. 11 — CHAINCASE AND CHAINS · ref 14 |
| Subsystem | primary |
| Listed in parts books | 1964–1968 |
Adjuster sleeve nut
An adjuster sleeve nut for the primary chaincase adjustment mechanism, listed under 70-4153 (also 70-6420/015, E4153).
This is an adjuster sleeve nut listed in the chaincase and chains section of the parts books, part number 70-4153. It's a component of the primary chaincase adjustment setup, used to take up slack in the primary chain as it wears. The catalog also carries this under the alternate number 70-6420/015 and the older E4153 form.
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Our records show this part appearing across a run of catalog listings from 1964 through 1968, and it was later superseded by 70-9703, so if your parts book lists that newer number, it's the same physical part under a revised designation.
We don't have additional detail on dimensions, thread, or material for this one beyond what's in the description. Give us a call if you want to confirm fitment before ordering.
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