JD M oil filter housing sealing plate.

[JohnDeereM50]

I ordered a oil filter and oil filter canister gasket from John Deere for my 1950 M and it came in a couple days ago. Got around to changing the oil in it tonight. First time I changed it since I got it a couple months ago. After getting old filter removed I realized the bottom sealing plate is gone. Is this gonna cause any harm by being gone? Tractor has good oil pressure but I suspect its not filtering as good as it should with this gone. Either way I am ordering the part tomorrow.
 

[Hayfarmer]

A few years ago I tried to get the sealing plate for a 430 as somewhere before the prior owner probably threw it out with filter. I don't think it was available from JD. A large flat washer will work but you may need a smaller washer under it.
 

[fatbob50]

Every John Deere M filter I have ever changed was missing that washer. In my opinion, it needs to be there or it will not filter properly. You will need to find the right one and put it back in there. I do not know why people throw them away, but it seems to be a common practice. They are sometimes hard to find. An old mechanic told me one time that it is common for the John Deere M tractor to eat that washer. It is sort of like washing machines eating socks. My wife told me that her washing machine has been eating socks for years. Good Luck with that. Bob
 

[jCarroll]

Easy to make. Dimensions are on jd40(dot)com
 

[Dave H]

If you haven't thrown the old one away, check the bottom of the old filter.

That is probably the way mnost of them make their way to the sanitary land fill.

I have one out there burried somewhere.
 

[JohnDeereM50]

I checked it when I took it out, its not there. I may have to make one from the dimensions listed.
 

[Hotflashjr]

My MT was missing this plate and I was able to get one from Sharps Tractor. Not in any way affiliated with them but it was the only place at that time that I could find one. I dont think this site has them listed. It is just a round peice of sheet metal but I also agree it will filter much better with it in there.
 

[M-MAN]

Aftermarkets are too cheap to fool with making one. While it should be in there it isn't gonna make a bit of difference in filtering or oil pressure. The plate is there to keep the old paper filter from collapsing. The filter ends were beefed up decades ago & I've never had one collapse whether the plate was there or not.
 

[CaseRider]

[M-MAN]

I use either Deere or NAPA depending on whether I remembered to pick one up at the dealer. WIX makes both so it doesn't matter where it comes from. Got my last set of plates from Sharps.
 

[jdfun]

They usually stick to the bottom of the filter and get thrown out. I had a local machine shop make me up a couple dozen of them. I get asked for them all the time. I just give them away , makes for good P.R. Send me your address and I will send you one. Tom Z
 

[JohnDeereM50]

Found a washer at work today that is the correct dimensions other than the hole needing to be drilled out bigger. A buddy of mine is going to do it in a lathe.