Reply To: Substitute for OMC Shift O-ring #301877, Sierra 18-7100

[WillinMKE]

Thanks for following up, Sputter.  Would you please post the pressure test result, pass or fail?  Good info for folks to have when searching for this in the future.

I found an old post from Ben / ‘fisherman6’ here on this site / ‘OldJohnnyRude’ on YouTube.  He said he uses:

“Metric O-rings 6mm ID x 4.5mm CS in 70A durometer Buna N. I buy my O-rings from theoringstore.com.”  … “They are a little tight, but work well if you make sure there are no sharp edges on the shift rod and use plenty of lubricant when you push the shift rod thru. Once they are together, they seal up nicely.”

Post here: https://www.aomci.org/forums/topic/omc-shift-rod-o-ring-301877/#post-79482

Using that info, I found what I think is the one he references here:  https://www.theoringstore.com/store/index.php?main_page=product_info&cPath=368_12_482&products_id=17404

Min qty. 40 at a whopping 10¢ a pop, so if that’s correct that’s way cheaper.  Can anyone verify that the oringstore.com part # N4.50X006 linked above is correct?

-Will