Tomy gear replacement?

Hey all, hopefully this is in the right thread!

A couple of my trains have cracked plastic gears, the ones on the back wheels. It's a 12 teeth plastic gear:

I was wondering if you know where I might be able to buy replacement gears? Thanks!

[Super]

I believe these should work. https://www.amazon.com/gp/product/B07X8L...UTF8&psc=1

Or these on eBay