Just come back from out that way, it was on my mind but buying and carrying a spare can apply to numerous parts especially sensors and hoses which are more likely to fail, so as usual I just took my chances......... I once always carried a water pump, numerous hoses, clamps so that in my shed I could have opened a shop for most brands of 4x4, I don't carry anything more than gaffa tape, tool box, puncture kit and a fan belt now.
This is the mob I have earmarked if mine gives any drama;
https://cometbattery.com.au/shop/alt...sel-om642-exf/
V6 Diesel part number is
4801835AD or 4801835AC