I just got a big pack of them from Amazon. They're standard sizes, the kit has 2 pin through 6 pin I think.

They work great. Search for 2.8mm connector

Not affiliate link, just what I bought:

https://www.amazon.com/Automotive-Electrical-Connector-Terminal-Motorcycle/dp/B07BJGVJRG

https://www.amazon.com/AUTOHAUX-Electrical-Connector-Terminal-Housing/dp/B07TQT5FP7