DEUTSCH DJT16E13-4AB Circular Connector, DJT Series, MIL-DTL-38999 Series I Equivalent, Straight Plug, 4 Contacts
DEUTSCH DJT10F25-4AB Circular Connector, DJT Series, MIL-DTL-38999 Series I Equivalent, Wall Mount Receptacle

Conn Circular PIN 56 POS Crimp ST Wall Mount 56 Terminal 1 Port Automotive

Conn Circular PIN 4 POS Crimp ST Cable Mount 4 Terminal 1 Port Automotive