I've got two Kuhne's HPAs rated at 12V, 10Amps. The HPAs have power connectors circled in blue. Is there a specific jumper with a compatible head that I could plug directly into this connector? I'm trying to avoid soldering if possible.
This is a feedthrough capacitor, it helps to filter the power and control lines entering the enclosure. It will have some capacitance to the body, and probably a small ferrite bead around the conductor.
You need to solder a wire to it.
But remember it's just the copper leg of a component, it's not very strong! The ground lug next to it may provide some strain relief, otherwise put a screw into the heatsink below it. If you pull the wire and snap it off, it will be a pain to repair.
and not like this [apologies to VK6UU]:
These appear to be expensive EMI feedthru attenuators of one type.
Avoiding soldering may be less than reliable from oxidation.