Hello, Going over the wiring in the engine, I found two senders on the injection pump side, one on the head, middle lower edge, and one around the middle of the block. The bottom one is a single pin, the top one is a two pin with a cobbled together harness that goes to a single pin connector in the harness and a loose black wire. Both of the harness connectors looks the same. Does it have two oil pressure senders? I've seen on here there is a pigtail adapter cable and sender kit, although that has a single pin oil sender. The wiring diagram only shows one engine oil pressure sender unit. Water temp seems to be the one close to the thermostat housing. So is the two pin sender factory or some makeshift repair job?
You can check this in the Case on-line parts catalog https://www.mycnhstore.com/choose-your-country