Athearn Genesis F-7 Couplers

I have an A-B set of the Athearn Genesis F-7. I must not have packed them correctly when preparing for the last move as a coupler on the B unit broke. What would be a good replacement for this broken coupler?

Thanks,

Brad

I have an Athearn Genesis Santa Fe Superchief F7A-B-B set and my go-to coupler is the Kadee #148 whisker coupler. They work well with American Limited diaphragms I have installed.

Athearn F-unit diaphragms