Just wanted to post what I have found for an alternative to the Polaris 4110225 fan switch which is NLA.
I used a Derale Part Number 16731 Fan Switch to replace a bad OE switch on a 1997 Magnum 425. You will need a 1/2" NPT (male) to 1/8" NPT (female) brass bushing/adapter to assemble it to the radiator (be sure not to over-tighten in the radiator). The on temp is 190 F and off temp is 175 F.
Here is a link to the details on the Derale site: Single Stage Controllers : 190°F Fan Switch Thermostat
I ordered one from etrailer.com for $29 shipped and then picked up the brass adapter for $2.00 from our local Fleet Farm (but any good hardware store should have it too).
I had to take the terminals out of the factory connector, protected them with some heat shrink, and then installed them individually to the tabs on the temp switch (the order doesn’t matter). Everything seems to be working great.
Hope this helps some folks. Good luck!!
Ryan
