New coolant temp sensor wire and boot

[Charger21]

I am looking for a new coolant temp sensor wire and cap. Wire is brittle and thought I would replace before I try to repair. Any idea where I can find one of these? I dont need the sensor in the water pump housing, just the wire with rubber boot.

Just to the right of the upper radiator hose in the picture. Engine is a big block.

 

[Demonic]

If that wire has issues due to age, the rest do too, like the alternator. Get the engine harness from Evan's wiring. I'm happy with the stuff I bought.