Speedo / Tach / Gauges: Temp Gage and sender

[over50]

I have a 12 volt system and an engine with a 1545220 temperature sender. What would I have to do to use a 532597 (SW 419475) 6 volt gage?

Thanks
Norm

[RadioRoy]

Norm,

What type and year of vehicle do you have?

The gauge and the sender must match, either 6 volt pair or a 12 volt pair. You cannot use a 6 volt gauge with a 12 volt sender.

If you have a 6 volt pair, you can use a gauge regulator from antique automobile radio and they will run with 12 volts. The gauges do not care that the polarity has been reversed.

http://www.radiosforoldcars.com/gaugeF.htm

If you have a 12 volt pair, but your engine was originally equipped with a 6 volt sender, your local plumbing supply place can supply the adapter to put the smaller sender in the bigger hole.

If you need to put a 6 volt sender into the hole where a 12 volt sender used to be, the threaded fittings will be more complex. In general, 6 volt senders are larger in diameter than 12 volt senders.