WHAT DOES MITSUBISHI 4B12 MOTOR MEAN?

I need the two O2 Sensors to possess a woman stop, for the reason that both equally places have male connectors, but if you look up on amazon or rock auto for upstream, These are ALL the incorrect stop.I would like both equally O2 Sensors to possess a feminine end, because both of those spots have male connectors, but when you search for on amazon