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Case Wheel Loader A/C Switches & Electrical

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Case Wheel Loader A/C Switches & Electrical parts list
Image Fits Model Description Part # Price Product Details
AC high-pressure switch 92153C1 for Case 580K See Details 580K, 580SK, 590 Turbo, 680L, 780D, 1150E, 1155E, 650G, 850E, 850G, 855E, 621, 621B, 721, 721B, 821, 821B, 921 High Pressure Switch 92153C1
$42.00
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AC high-pressure switch 232948A1 for Case 580 Super K See Details 580SK, 580L, 580SL, 580M, 580SM, 580N, 580SN, 590SL, 590SM, 590SN, 570LXT, 570MXT, 570NXT, 521D, 521F, 621B, 621C, 621D, 621E, 621F, 721B, 721C, 721D, 821B, 821C, 821E, 821F, 921B, 921C, 921F, 650G, 650H, 750H, 850E, 850G, 850H, 855E, 1150G, 1150H AC High Pressure Switch 232948A1
$40.00
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AC low-pressure switch 122579A1 for Case wheel loaders See Details 521D-F, 621B-F, 721B-F, 821B,C,E,F, 921,B,C,F, 1021F*, 1121F*, 650G,H, 750H, 850E,G,H, 855E, 1150G,H, 570LXT, MXT, NXT, NEP, 85XT, 90XT, 95XT, 580SK, 580L, 580SL, 580M*, 580SM*, 590SL, 590SM* A/C Low-Pressure Switch 122579A1
$49.00
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AC low-pressure switch 284272A3 for Case 521G loader See Details 521G, 621G, 721G, 821G, 921G, 1021G, 1121G AC Low Pressure Switch 284272A3
$50.00
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High pressure switch 284273A1 for Case 521G loader See Details 521G, 521G2, 621G, 721G, 821G, 921G, 921G2, 1021G, 1021G2, 1121G, 1121G2 AC High Pressure Switch 284273A1
$64.00
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Potentiometer Control Switch for Case Wheel Loaders See Details 521E, 521F, 621E, 621F, 721E, 721F, 821E, 821F, 921E, 921F, 1021F, 1121F Potentiometer Control Switch 84169306
$215.00
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3-speed blower switch 92100C2 for Case 521D loader See Details 521D, 621, 621B, 621C, 621D, 721, 721B, 721C, 721D, 821, 821B, 821C, 921, 921B, 921C AC Blower Switch, 3 Speed 92100C2
$58.00
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Heater Actuator, 6 Pin for Case Wheel Loaders See Details 1021F, 1121F, 521E, 521F, 621E, 621F, 721E, 721F, 821E, 821F, 921E, 921F Heater Actuator 6 Pin 87472435
$384.00
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Thermostatic Switch for Case Wheel Loaders See Details 521E, 521F, 621E, 621F, 721E, 721F, 821E, 821F, 921E, 921F, 1021F, 1121F Thermostatic Switch 87529621
$170.00
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Blower Speed Resistor for Case Wheel Loaders – 521E thru 1121F See Details 521E, 521F, 621E, 621F, 721E, 721F, 821E, 821F, 921E, 921F, 1021F, 1121F Blower Speed Resistor 87528688
$35.00
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A/C switches and electrical controls for Case wheel loaders, including low-pressure and high-pressure switches, thermostatic switches, blower speed resistors, potentiometer control switches, and heater actuators across D, E, F, and G series machines.

Fits Models At A Glance

  • 500 Series: 521D, 521E, 521F, 521G, 521G2
  • 600 Series: 621, 621B, 621C, 621D, 621E, 621F, 621G
  • 700 Series: 721, 721B, 721C, 721D, 721E, 721F, 721G
  • 800 Series: 821, 821B, 821C, 821E, 821F, 821G
  • 900 Series: 921, 921B, 921C, 921E, 921F, 921G, 921G2
  • 1000/1100 Series: 1021F, 1021G, 1021G2, 1121F, 1121G, 1121G2

Key Notes

  • Application: Controls and protects the cab HVAC and A/C refrigerant system
  • Switch types: Low-pressure, high-pressure, thermostatic, and 3-speed blower switches
  • Electrical controls: Potentiometer control switches, blower speed resistors, and 6 pin heater actuators
  • Fitment: Coverage varies by series and serial number, so match the part number to confirm

Why Choose Broken Tractor

  • ✅ Wide Case wheel loader electrical coverage in one place
  • ✅ New and used HVAC switches at fair prices
  • ✅ Fast shipping from two US locations

Frequently Asked Questions

What does the A/C low-pressure switch do on a Case wheel loader?

The low-pressure switch monitors refrigerant pressure and cuts power to the compressor clutch when pressure drops too low. This protects the compressor from running without adequate refrigerant. We carry low-pressure switches covering the 521 through 1121 series.

How do I know if my Case loader A/C high pressure switch is bad?

A failed high-pressure switch can prevent the compressor from engaging or fail to shut the system down when pressures run high. Symptoms include weak or no cooling and a compressor clutch that cycles improperly. Match the part number on your existing switch, since coverage differs across D, E, F, and G series machines.

What is the blower speed resistor for on a Case wheel loader?

The blower speed resistor sets the different fan speeds for the cab HVAC system. When it fails, you often lose the lower fan speeds while high still works. Broken Tractor offers blower speed resistors fitting 521E through 1121F loaders.

Will these switches fit my Case G series wheel loader?

Some switches are specific to the G series, such as the low-pressure and high-pressure switches for the 521G through 1121G2. Because fitment can vary by serial number, confirm the part number matches or call our parts team at (800) 909-7060.

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Product: Category: Case Wheel Loader A/C Switches & Electrical Brand: Head Title: Case Wheel Loader A/C Switches | Broken Tractor