Description

When your tractor’s air conditioning starts acting up—cycling on and off too much, not cooling properly, or compressor issues—there’s a good chance the pressure switch is the culprit. This little component keeps tabs on your A/C system pressure and tells your compressor when to engage and when to take a break. Without it working right, you’ll either be sweating through long days or dealing with expensive compressor damage.

What You’re Getting

Fits drier part 800-123 with precision 7/16-20 female flare thread connection
Monitors refrigerant pressure to protect compressor from low or high pressure damage
Built by TISCO for agricultural use—not some cheap automotive part
Direct replacement that threads right into your existing drier setup

Built for Real Farm Work

This switch is designed for tractor air conditioning systems that work hard all season long. Whether you’re running 12-hour days during planting, spending weeks in the cab during harvest, or dealing with dusty conditions that challenge your cooling system, this pressure switch keeps things running safely. It’s built to handle the vibration and temperature extremes that come with agricultural equipment.

Made to Last

Farm A/C systems face tough conditions—dust, heat, hydraulic fluid spray, and constant vibration. This TISCO pressure switch uses quality internal components that resist corrosion and maintain reliable switching even after thousands of cycles. The flare thread connection ensures a leak-proof seal that won’t come loose over time.

Installation Notes

Installation is straightforward if you’ve got basic A/C system knowledge. Make sure to recover the refrigerant properly before removing the old switch—there’s still pressure in the system even when it’s not running. The 7/16-20 flare thread should seal without thread sealant, but make sure the connection is clean and the flare surfaces are in good shape.