1985 GL vanagon 1.9L digijet

Well this one took a while to isolate the bog down and rough running engine
but I think I have isolated the bog/lurch/bog etc. By just removing the
temp coolant sensor clip smooths out the idle considerably so I replacing
the sensor/O ring. I found the Bosch match at local NAPA dealer.

Question;The Female clip is in sad shape,some one has gooped it up with
black silicone sealer as its cracked and worn out.  Can I replace this with
some good quality insulated clips or is that clip a specialized fitted
animal? I searched to find and replace the clip but have yet to find such.
 Does anyone have one or suggested a fix?
Any and all help as always is appreciated. Thanks DS