i know this is an old topic but does dealer show this seal/o-ring on their microfish ?

can a replacement be bought ?
anyone have a pic ?
does the seal sit up against the screw cap of the cable end ?
mine finally started leaking, never did have a seal since i've owned it.

thanks, i'll try an o ring. i already tried cutting a flat piece of an old inner tube to make my own seal but didn't work.
i just ran to the dealer before your post with the part # and they said must by whole speedo assembly.
then i got the kid working out front to pull off the cable end on a used for sale savage they had and it is really more a seal than an o-ring. it's about a half cm tall and looks like it rides around the thick part of the speedo drive shaft .

I went to the hardware store and bought a rubber faucet washer and used on it.  Works like a charm!