oil pan drain plug

[thelegend]

i have a 1966? jd 1020. it has a oil pan drain plug like i have not seen before. it looks like a 8 sided allen wrench around 9/16. it looks original. has anybody seen this.

 

[Katahdin]

The 1950s-70s 10K military Garwood PTO winches came with 9/16" HEX drain/fill plugs (six sided, not eight). You can swap them out with 1/2" female square plugs, I think I purchased my square plugs from mcmaster.com

 

[jenkinsph]

I doubt it is original but you should be able to buy a socket to fit easy enough. Somewhere in the last 48 years somebody lost the plug and put this one in.

 

[jd110]

Actually, the plug is probably original. It is eight sided because it is a double square. Try your 1/2" ratchet or breaker bar. I am betting it will work.

 

[Tx Jim]

Here's the oil pan plug spec's. Note the part outlined in red.