Hi. Does anyone know what the O-ring size is for the 3 point hydraulic piston on a satoh bison s650g? I measured the old one I have and I'm getting roughly 70mm o.d. x 60mm i.d. x 6mm thick. I know that the math of the above numbers don't add up, but, I'm not sure which one is correct.
Thanks.
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/ Satoh Bison S650g 3 point hydraulic piston O-ring size.
You state you have "roughly" measured the outer and inner diameters of your existing seal. You could try taking your old seal to a hydraulic shop and see how closely they can match it. You could also check with Valley Power for the exact part number.
