Can't find parts for corsair k55

Unfortunately, I don’t think Corsair sells what you need. They happen to sell replacement parts, which mainly consist of keycap mods for their keyboards, but I am pretty sure that you may have to find your part on eBay. I did look up your part, but I found nothing as some of the stuff being sold online was replacement feet and a few keycaps here and there. I hope this answer does help you. Good luck with finding your replacement part. You could request a replacement part from Corsair as a lot of their products do have warranties.