I've purchased a LOT of snowmobile and bike OEM parts through Port's OEM part's fiche. Is there something wrong with the site right now? Some assemblies I see no parts listed at all for purchase, or only a couple. I've even looked at current model years to see if it's just older models that parts aren't being stocked for. I have adblocker off, I've also tried different browsers.
You might want to call them, I did notice some strange glitches and I usually call them to make them aware.