When you’re deep into haying season or pulling heavy loads in the summer heat, that temperature warning light could be the difference between finishing the day and facing a major engine rebuild. Your cooling system works fine most of the time, but when something goes wrong—a stuck thermostat, low coolant, or a failing water pump—this little switch gives you the heads-up you need before expensive damage occurs.
What You’re Getting
- Activates your warning system at the exact temperature your engine needs protection
- Direct replacement that threads right into your existing cooling system
- Weather-sealed construction that handles engine heat and vibration
- Simple two-wire connection that works with your tractor’s existing warning system
- Built tough enough for the demanding agricultural environment
Built for Real Farm Work
This switch is designed specifically for MF 42, 43, and 62 series tractors—the workhorses that handle everything from heavy tillage and hay making to loader work and transport duties. These tractors often run long hours under heavy loads, making reliable temperature monitoring essential for protecting your investment.
Made to Last
Farm equipment operates in tough conditions, and temperature switches are no exception. This replacement is built with quality internal contacts that won’t fail when you need them most. The sealed housing protects against moisture, dirt, and the temperature extremes that come with agricultural work.
Good to Know
Installation takes just a few minutes—drain a little coolant, unscrew the old switch, and thread in the new one with proper thread sealant to prevent leaks. If your warning system has been acting erratic, test the switch with a multimeter before assuming it’s the gauge. A faulty switch that fails “open” gives no warning, while one that fails “closed” keeps your warning light on constantly.








