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Shop/Category/Fig. 13 — GEARBOX OUTER COVER/Cotter pin c w nut and washer
Cotter pin c w nut and washer
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DiagramFig. 13 — GEARBOX OUTER COVER · ref 45
Subsystemgearbox
Listed in parts books1974

Cotter pin c w nut and washer

A cotter pin with matching nut and washer used on the gearbox outer cover assembly.

PN · 57-4355

This is a cotter pin that comes with its own nut and washer, listed under the gearbox outer cover section of the parts book. Cotter pins like this are used to lock a lever or arm onto a shaft so it can't work loose in service, and the fact that it's grouped with the outer cover tells us it's doing that job somewhere on the outside of the gearbox, most likely on one of the operating levers.

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The catalog only shows this part turning up once, tied to 1974, so we don't have a lot of history on it beyond that single entry. If you're chasing this part for a rebuild, have your gearbox outer cover off and the lever in question in hand so you can match it up before ordering.

Call the shop if you want us to double check this against what's actually on your box - with only the one catalog appearance to go on, we'd rather confirm than guess.

Not listed anywhere

We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.

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Related parts
Plain washer
PN 57-3673 · Usually replaced with this
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Gearbox Outer Cover
PN 57-3760 · Goes with this
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Ed is at the counter. Tell him what you're working on or what doesn't fit, and he'll take it from there with this part already on the bench.