What are these things called

[supamu]

Need to replace these, but not sure what they're called. The wires are coming off. Got the wrong size given to me from repco, so part numbers would be good if anyone knows, or even knows what they are called.

[lewis]

Water temperature senders?

[geeves]

True The front one controls the cold start system and could be isuzu only The other I think is the gauge Unlikely to be available from repco

[lewis]

Ive been considering putting an aftermarket water temp gauge in actually (would prefer numbers on the gauge). Since I doubt you need the cold start system and if the other is nearly broken they maybe just put an inline sender in a water hose and run aftermarket gauge
Actually saw a small nick in the top water hose to the turbo yesterday, thought ill be safe and replace - lucky, i yanked it and it holed near the turbo, was crunchy and full of rust - should probably replace all hoses but the heater ones look like would be a bit of a job haha

[supamu]

Thanks, had worked out what they did as temperature guage not working, just wasn't sure what to ask for -maybe find one at a wreckers. No hurry for the front one then, doubt we'd even need it.

[pig75]

This thread might help
viewtopic.php?f=24&t=521&p=3054#p3054

[geeves]

The one with 2 wires is quick warm up. If you disconect the wires the glow plug will stay on 30 sec and the engine will knock terribly. If you want to permanantly remove this one short the wires together but dont expect to be able to start it mid winter in the central north island.