IH B series o-ring

[Phill Tibbetts]

Does anyone know the o-ring size for a IH B series, 275, 414, 364 etc. hydraulic tank filter screen? I think it is 2" OD x 1 3/4 ID, but want to be sure before I drain the oil to replace it. Been leaking fr a while, time to fix it.

 

[used red MN]

Here is what is shown for a 414. Number 4
Messicks IH 414 Hydraulic diagram

 

[Jim.ME]

It looks like it is not an SAE standard O-ring. Wire cross section is ok at .139". The ID is not a standard size. 1.687" converts to 1-11/16". A #223 O-ring ID is 1-5/8" and 224 is 1-3/4" ID. Either may work, that is up to you to try if you want.

It appears it best matches a metric 3.53 x 42.86 O-ring

 

[Phill Tibbetts]

I think I will drain it and measure the actual size of the groove and the bore it fits into. That way I will be sure of the size. thanks for the info