Dropper Post Replacement Help.

I need to replace the cartridge on my trek Roscoe 7 as it’s just totally nuked itself under the weight of my fat ass and sent oil everywhere.

Im having a little trouble trying to find a replacement cartridge and where to get it. It’s 31.6-150mm, and unbranded. The product code visible in the photo is J21F2.

I think the cartridge is a YSP-23 150mm, but not super sure, would like some clarification if anyone knows anything.

Thank you!