This electrical plug connects a wiring harness to a component within the machine’s electrical system. It provides a sealed, keyed connection that prevents reversed polarity and resists moisture ingress. A corroded or damaged plug causes intermittent contact, leading to sensor faults or control-circuit failures. The connector housing and terminal pins are molded to match the original assembly’s cavity layout, ensuring the locking tab engages fully and the seal compresses against the mating socket.