Bulb Type AC Expansion Valve for John Deere Tractors and Equipment

Description

When the cab’s air conditioning starts acting up—maybe it’s blowing warm air one minute and icing up the next, or just can’t seem to keep you cool no matter what—chances are your expansion valve needs attention. This little but critical component controls exactly how much refrigerant flows to your evaporator, and when it’s not doing its job right, your comfort goes right out the window on those long, hot days in the field.

What You’re Getting

• Bulb-type sensing element that responds to evaporator temperature for precise control
• O-ring sealing design prevents leaks and contamination
• 9-inch capillary tube provides flexible positioning for proper installation
• External equalization ensures accurate refrigerant metering under varying loads
• Compatible with both R12 and R134a refrigerant systems

Built for Real Farm Work

The expansion valve is your A/C system’s throttle – controlling exactly how much refrigerant enters the evaporator. Too much flow and the evaporator ices up, blocking airflow. Too little and you get poor cooling despite the compressor running constantly. This valve handles the demanding conditions your John Deere faces, from utility tractors working around the farm to big row-crop machines putting in marathon days during planting and harvest. Whether you’re running combines, crawlers, scrapers, or sprayers, reliable cab cooling keeps you productive when the heat’s on.

Made to Last

Expansion valve replacement demands attention to cleanliness – any contamination causes immediate failure. Always replace the receiver drier when changing valves to remove moisture and debris. This TISCO valve is built to John Deere OE specifications, using materials that handle temperature swings and pressure changes without breaking down. The bulb sensing element provides accurate temperature response, while the robust construction stands up to the vibration and demanding duty cycles farm equipment dishes out.

Good to Know

When installing this valve, absolute cleanliness is critical—any dirt or moisture will cause immediate problems. Always replace the receiver drier when changing valves to remove moisture and debris. Use new O-rings and ensure proper evacuation before charging the system. If you’re seeing signs like evaporator freeze-up, inconsistent cooling, or excessive compressor cycling, this valve often solves the problem and gets your A/C working like it should.