Description

If you’ve been caught off-guard by coolant loss or your low coolant light isn’t working, you know how quickly a minor problem becomes catastrophic engine damage. This replacement coolant level sensor gives you that critical early warning system back—the difference between a simple top-off and a complete engine rebuild.

What You’re Getting

Early warning before overheating occurs, giving you time to shut down safely
Direct replacement that works with your existing dash warning light system
Chemical-resistant construction that stands up to coolant additives and heat cycles
Simple electrical design that triggers when coolant drops below sensor level

Where This Part Shines

This sensor fits John Deere 5820 tractors running forage equipment and early production 6120/6220 models pulling tillage implements. These engines generate serious heat under load, and losing coolant quickly leads to overheating damage that’ll cost thousands more than this sensor.

Made to Last

Coolant sensors live in a harsh environment—hot coolant with corrosive additives, pressure cycles, and temperature extremes. This replacement uses materials specifically chosen to resist coolant degradation while maintaining reliable electrical function over years of service.

Installation Notes

When replacing, drain coolant below sensor level and use thread sealant on installation. Test the system by temporarily grounding the sensor wire—your dash light should illuminate. This is also a perfect time to check coolant condition and top off if needed.