Hi and welcome to here.
It was me who answered your query on FB and suggested you ask here. Like I said on FB, it'd be a good idea to post a photo of the side of your mech showing what you're looking at as names of parts differ around the world. Am I right in thinking you're in Americaland?
I'll point out that we normally ask established forum members to place For Sale & Wanted adverts in The Market Place section https://pennymachines.co.uk/market/wanted/
However, you've only just arrived, so please bear it in mind for next time.
Post the photo and if it's what I think you need I have an idea where there may be some.