Leaky diesel pump pressure sensor

[$hitblast]

It turns out the diesel pressure sensor on my diesel pump is leaking. The sensor sits in the middle of the four injector lines coming from the pump, and it's leaking several drops of diesel per second with the engine in operation. With two lines disconnected from the pump, it was possible to get at the sensor with a 17 mm open ended spanner.



The metal holding onto the plastic where the wires connect has several cracks around the rim. The wires, as you can see, are not insulated near the sensor, and they are even entwined. I wonder if it is supposed to be like this. Turns out it can be ordered from Germany for 551 USD. A bit expensive. Can I just put in a regular screw?

Edit: Part number 1467200303

Edit: Well, the twisting of the wires happened as my friend unscrewed the sensor, and likewise the de-insulation of the wires, so please disregard that info. Sorry about that.