Anyone have info about this fuel cap?

phess11

Member
I have old pictures of this 630, when my dad bought it new from the dealer in 1960, with this fuel cap was on it. To me it looks like a Farmall fuel cap. But, why would they have changed the fuel cap. Did John Deere ever have this type of fuel cap? thanks, phil


mvphoto13315.jpg
 
Seems like my 420 has a fuel cap like that. I'll look in a little while. Don't know if they'll swap and fit. Nice 630!!
 
Like others have shown my 40 has one on it too.
They offered these like the Farmalls for machines without a vent on the tank.
A 630 should have a vent tube on the tank hidden under the hood. You would have to verify it is hooked up and working if you would want to get a regular style cap for it.
 
Take a look at the diagram below.

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Note the cap (Key 5).

Neither of our Model 40s had this cap when we bought them, but our 52 Model A did have this cap when we bought it.

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Hope this helps.
 
A lot of these were sold back in the day when prices were reasonable, simply because they were easier to grab and remove/replace them .I think they originated for IH tractors but could simply be after market .
 
Yes - my 420 cap is like the one on your 630, and it will interchange. It's vented, and my 630 cap is not. 630 tank has it's own vent.
 

Yeah, it is easier to get a hold of. Just would love to know why it came new from the dealer with that cap. Interesting.

thanks everyone!
phil
 
that cap is for H and m farmalls it has baffles inside to keep fuel from lecking out they did not have baffles in the tanks and would splash out the reg caps
 
(quoted from post at 10:12:29 11/26/14) that cap is for H and m farmalls it has baffles inside to keep fuel from lecking out they did not have baffles in the tanks and would splash out the reg caps


It is a John Deere part. Part#AM3892T
 

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