WM3 Loader shaft seal

seventy64ever · Oct 23, 2021

I am having a difficult time finding the right seal for my hydraulic pump on wm3 loader. The part number is 100-275a. On the seal it's self, it says CR on the bottom and 99-12, or 88-12. its scratched up so it hard to read. I have been unable to find anything using those numbers. I measured it and the outer diameter is 1.25", inner diameter is .50" and its .25 tall. I tried looking up those number and to be honest, its a little overwhelming with all the different seals out there. I don't want to get the wrong one. Can anyone help point me in the right direction?

This post was edited by seventy64ever on 10/23/2021 at 08:05 pm.

wore out · Oct 23, 2021

(quoted from post at 20:02:38 10/23/21) I am having a difficult time finding the right seal for my hydraulic pump on wm3 loader. The part number is 100-275a. On the seal it's self, it says CR on the bottom and 99-12, or 88-12. its scratched up so it hard to read. I have been unable to find anything using those numbers. I measured it and the outer diameter is 1.25", inner diameter is .50" and its .25 tall. I tried looking up those number and to be honest, its a little overwhelming with all the different seals out there. I don't want to get the wrong one. Can anyone help point me in the right direction?

This post was edited by seventy64ever on 10/23/2021 at 08:05 pm.

Check out the link below, you can plug in the numbers you have and see if anything comes up or find a seal by the dimensions you have.

https://www.skfextranet.com/crsealsfinder/

Hobo,NC · Oct 24, 2021

I find life is much easier to convert those number to metric then start my search : )

https://www.calculateme.com/length/inches/to-millimeters/0.5

lha · Oct 24, 2021

I'm not an expert on seals,but when I was rebuilding dirt bikes and having trouble finding stuff,I turned to
an industrial bearing and seal supplier in a Town near my house. There is probably a similar place close
enough to your home as well. Just bring the part with you and tell them what it fits so they can get you
what you need. The measurements marked on your part will give them some starting point.

TheOldHokie · Oct 24, 2021

(quoted from post at 23:02:38 10/23/21) I am having a difficult time finding the right seal for my hydraulic pump on wm3 loader. The part number is 100-275a. On the seal it's self, it says CR on the bottom and 99-12, or 88-12. its scratched up so it hard to read. I have been unable to find anything using those numbers. I measured it and the outer diameter is 1.25", inner diameter is .50" and its .25 tall. I tried looking up those number and to be honest, its a little overwhelming with all the different seals out there. I don't want to get the wrong one. Can anyone help point me in the right direction?

This post was edited by seventy64ever on 10/23/2021 at 08:05 pm.

I am going to make an educated guess the pump shaft is .750 and you need a simple 1.250 x .250 x .750 rotary shaft seal. McMaster has them for $4 and change.

TOH

WM3 Loader shaft seal

seventy64ever

New User

wore out

Well-known Member

Hobo,NC

Well-known Member

lha

Well-known Member

TheOldHokie

Well-known Member

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