Universal Air EX5428C A/C Expansion Valve - Rear
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Universal Air
 Thermal Expansion Valve

Universal Air EX5428C A/C Expansion Valve - Rear

Brand Universal Air EX5428C
Position Rear
Product line Thermal Expansion Valve
Fits Chevrolet and GMC · 122 vehicles

Thermal expansion valve. Regulates refrigerant flow for efficient A/C system performance.

A/C flow restrictor. Helps meter refrigerant through the system for consistent cooling.

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Thermal Expansion Valve for Rear A/C

Universal Air EX5428C is a thermal expansion valve for automotive air conditioning systems that use rear A/C. It is listed for select 1991-1993 Chevrolet and GMC trucks, SUVs, and vans with rear HVAC configurations, including applications such as Chevrolet Astro, GMC Yukon, and Suburban models.

The EX5428C thermal expansion valve helps regulate refrigerant flow into the evaporator so the A/C system can maintain proper cooling performance. Universal Air’s Thermal Expansion Valve line focuses on flow control for vehicle-specific HVAC layouts, including rear air conditioning systems.

  • Thermal expansion valve for A/C refrigerant metering
  • Fits rear A/C applications on select Chevrolet and GMC vehicles
  • Direct fit coverage for 1991-1993 model years listed below
  • Part number EX5428C for catalog and service matching
  • Application coverage includes Chevrolet Astro, Blazer, C/K-Series, S10 Blazer, and GMC C/K-Series, Yukon

Fitment Details

  • Fits 1991-1993 Chevrolet Astro, rear.
  • Fits 1992-1993 Chevrolet Blazer, N/A.
  • Fits 1992-1993 Chevrolet C1500, N/A.
  • Fits 1992-1993 Chevrolet C1500 Suburban, N/A. Compatible with rear A/C.
  • Fits 1992-1993 Chevrolet C2500, N/A.
  • Fits 1992-1993 Chevrolet C2500 Suburban, N/A.
  • Fits 1992-1993 Chevrolet C3500, N/A.
  • Fits 1993 Chevrolet K1500, N/A.
  • Fits 1992-1993 Chevrolet K1500 Suburban, N/A. Compatible with rear A/C.
  • Fits 1992-1993 Chevrolet K2500, N/A.
  • Fits 1992-1993 Chevrolet K2500 Suburban, N/A. Compatible with rear A/C.
  • Fits 1993 Chevrolet K3500, N/A.
  • Fits 1993 Chevrolet S10 Blazer, N/A.
  • Fits 1993 GMC C1500, N/A.
  • Fits 1992-1993 GMC C1500 Suburban, rear. Compatible with rear A/C.
  • Fits 1993 GMC C2500, N/A.
  • Fits 1992-1993 GMC C2500 Suburban, rear. Compatible with rear A/C.
  • Fits 1993 GMC C3500, N/A.
  • Fits 1993 GMC K1500, N/A.
  • Fits 1992-1993 GMC K1500 Suburban, rear. Compatible with rear A/C.
  • Fits 1993 GMC K2500, N/A.
  • Fits 1992-1993 GMC K2500 Suburban, rear. Compatible with rear A/C.
  • Fits 1993 GMC K3500, N/A.
  • Fits 1992 Chevrolet K1500, N/A. Compatible with rear A/C.
  • Fits 1992 Chevrolet K3500, N/A. Compatible with rear A/C.
  • Fits 1992 GMC C1500, rear. Compatible with rear A/C.
  • Fits 1992 GMC C2500, rear. Compatible with rear A/C.
  • Fits 1992 GMC C3500, rear. Compatible with rear A/C.
  • Fits 1992 GMC K1500, rear. Compatible with rear A/C.
  • Fits 1992 GMC K2500, N/A. Compatible with rear A/C.
  • Fits 1992 GMC K3500, rear. Compatible with rear A/C.
  • Fits 1992 GMC Yukon, rear. Compatible with rear A/C.

Common A/C Problems It Addresses

  • Incorrect refrigerant metering at the evaporator
  • Weak rear cabin cooling on rear A/C systems
  • Uneven A/C performance in Chevrolet and GMC HVAC layouts
  • Expansion valve restriction or flow control issues
  • Service replacement for a failed thermal expansion valve

Installation Notes

Verify the vehicle’s A/C configuration and match the listed application before installation. This part number, EX5428C, is used on select rear A/C systems, so confirm the original valve style and mounting location on the vehicle before service. Proper evacuation, leak checking, and refrigerant recharge procedures should be followed after replacement.

Quality Assurance

Universal Air Thermal Expansion Valve components are cataloged for application-specific HVAC service on listed Chevrolet and GMC vehicles. Part number EX5428C is provided for accurate identification during A/C repair and replacement.

Related reading

This part fits 122 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
1993ChevroletAstro————RearThermal Expansion Valve
1993ChevroletBlazer————N/AThermal Expansion Valve
1993ChevroletC1500Cheyenne5.0LV8GASN/AThermal Expansion Valve
1993ChevroletC1500Cheyenne6.2LV8DIESELN/AThermal Expansion Valve
1993ChevroletC1500Silverado5.0LV8GASN/AThermal Expansion Valve
1993ChevroletC1500Silverado6.2LV8DIESELN/AThermal Expansion Valve
1993ChevroletC1500WT4.3LV6GASN/AThermal Expansion Valve
1993ChevroletC1500WT7.4LV8GASN/AThermal Expansion Valve
1993ChevroletC1500Cheyenne5.7LV8GASN/AThermal Expansion Valve
1993ChevroletC1500Cheyenne4.3LV6GASN/AThermal Expansion Valve
1993ChevroletC1500Cheyenne7.4LV8GASN/AThermal Expansion Valve
1993ChevroletC1500Silverado4.3LV6GASN/AThermal Expansion Valve
1993ChevroletC1500Silverado7.4LV8GASN/AThermal Expansion Valve
1993ChevroletC1500454 SS7.4LV8GASN/AThermal Expansion Valve
1993ChevroletC1500WT5.7LV8GASN/AThermal Expansion Valve
1993ChevroletC1500WT5.7LV8CNGN/AThermal Expansion Valve
1993ChevroletC1500Cheyenne5.7LV8CNGN/AThermal Expansion Valve
1993ChevroletC1500Silverado5.7LV8GASN/AThermal Expansion Valve
1993ChevroletC1500Silverado5.7LV8CNGN/AThermal Expansion Valve
1993ChevroletC1500WT5.0LV8GASN/AThermal Expansion Valve
1993ChevroletC1500WT6.2LV8DIESELN/AThermal Expansion Valve
1993ChevroletC1500 Suburban————N/ACompatible with rear A/C.; Thermal Expansion Valve
1993ChevroletC2500Cheyenne6.2LV8—N/AThermal Expansion Valve
1993ChevroletC2500Cheyenne5.0LV8—N/AThermal Expansion Valve
1993ChevroletC2500Cheyenne5.7LV8—N/AThermal Expansion Valve
1993ChevroletC2500Silverado6.2LV8—N/AThermal Expansion Valve
1993ChevroletC2500Silverado5.0LV8—N/AThermal Expansion Valve
1993ChevroletC2500400 SS5.7LV8—N/AThermal Expansion Valve
1993ChevroletC2500Custom5.7LV8—N/AThermal Expansion Valve
1993ChevroletC2500Cheyenne4.3LV6—N/AThermal Expansion Valve
1993ChevroletC2500Cheyenne7.4LV8—N/AThermal Expansion Valve
1993ChevroletC2500Silverado4.3LV6—N/AThermal Expansion Valve
1993ChevroletC2500Silverado7.4LV8—N/AThermal Expansion Valve
1993ChevroletC2500Silverado5.7LV8—N/AThermal Expansion Valve
1993ChevroletC2500 Suburban————N/AThermal Expansion Valve
1993ChevroletC3500—5.7LV8GASN/AThermal Expansion Valve
1993ChevroletC3500—6.2LV8DIESELN/AThermal Expansion Valve
1993ChevroletC3500—7.4LV8GASN/AThermal Expansion Valve
1993ChevroletK1500————N/AThermal Expansion Valve
1993ChevroletK1500 Suburban————N/ACompatible with rear A/C.; Thermal Expansion Valve
1993ChevroletK2500—5.7LV8GASN/AThermal Expansion Valve
1993ChevroletK2500—6.2LV8DIESELN/AThermal Expansion Valve
1993ChevroletK2500—4.3LV6GASN/AThermal Expansion Valve
1993ChevroletK2500—7.4LV8GASN/AThermal Expansion Valve
1993ChevroletK2500—5.7LV8CNGN/AThermal Expansion Valve
1993ChevroletK2500—5.0LV8GASN/AThermal Expansion Valve
1993ChevroletK2500 Suburban————N/ACompatible with rear A/C.; Thermal Expansion Valve
1993ChevroletK3500—5.7LV8GASN/AThermal Expansion Valve
1993ChevroletK3500—6.2LV8DIESELN/AThermal Expansion Valve
1993ChevroletK3500—7.4LV8GASN/AThermal Expansion Valve
1993ChevroletS10 BlazerNevada3.1LV6—N/AThermal Expansion Valve
1993GMCC1500————N/AThermal Expansion Valve
1993GMCC1500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1993GMCC2500—5.7LV8GASN/AThermal Expansion Valve
1993GMCC2500—5.7LV8CNGN/AThermal Expansion Valve
1993GMCC2500—4.3LV6GASN/AThermal Expansion Valve
1993GMCC2500—7.4LV8GASN/AThermal Expansion Valve
1993GMCC2500—6.2LV8DIESELN/AThermal Expansion Valve
1993GMCC2500—5.0LV8GASN/AThermal Expansion Valve
1993GMCC2500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1993GMCC3500—7.4LV8GASN/AThermal Expansion Valve
1993GMCC3500—5.7LV8GASN/AThermal Expansion Valve
1993GMCC3500—6.2LV8DIESELN/AThermal Expansion Valve
1993GMCK1500————N/AThermal Expansion Valve
1993GMCK1500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1993GMCK2500—6.2LV8DIESELN/AThermal Expansion Valve
1993GMCK2500—5.0LV8GASN/AThermal Expansion Valve
1993GMCK2500—5.7LV8GASN/AThermal Expansion Valve
1993GMCK2500—4.3LV6GASN/AThermal Expansion Valve
1993GMCK2500—7.4LV8GASN/AThermal Expansion Valve
1993GMCK2500—5.7LV8CNGN/AThermal Expansion Valve
1993GMCK2500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1993GMCK3500—5.7LV8GASN/AThermal Expansion Valve
1993GMCK3500—6.2LV8DIESELN/AThermal Expansion Valve
1993GMCK3500—7.4LV8GASN/AThermal Expansion Valve
1992ChevroletAstro————RearThermal Expansion Valve
1992ChevroletBlazer————N/AThermal Expansion Valve
1992ChevroletC1500————N/AThermal Expansion Valve
1992ChevroletC1500 Suburban————N/ACompatible with rear A/C.; Thermal Expansion Valve
1992ChevroletC2500Cheyenne5.0LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Cheyenne5.7LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Cheyenne6.2LV8DIESELN/AThermal Expansion Valve
1992ChevroletC2500Cheyenne4.3LV6GASN/AThermal Expansion Valve
1992ChevroletC2500Cheyenne7.4LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Scottsdale6.2LV8DIESELN/AThermal Expansion Valve
1992ChevroletC2500Scottsdale5.0LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Silverado5.0LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Silverado6.2LV8DIESELN/AThermal Expansion Valve
1992ChevroletC2500Silverado4.3LV6GASN/AThermal Expansion Valve
1992ChevroletC2500Silverado7.4LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Cheyenne5.7LV8CNGN/AThermal Expansion Valve
1992ChevroletC2500Scottsdale4.3LV6GASN/AThermal Expansion Valve
1992ChevroletC2500Scottsdale7.4LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Silverado5.7LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Silverado5.7LV8CNGN/AThermal Expansion Valve
1992ChevroletC2500Base5.7LV8GASN/AThermal Expansion Valve
1992ChevroletC2500Scottsdale5.7LV8GASN/AThermal Expansion Valve
1992ChevroletC2500 Suburban————N/AThermal Expansion Valve
1992ChevroletC3500—6.2LV8DIESELN/AThermal Expansion Valve
1992ChevroletC3500—7.4LV8GASN/AThermal Expansion Valve
1992ChevroletC3500—5.7LV8GASN/AThermal Expansion Valve
1992ChevroletK1500————N/ACompatible with rear A/C.; Thermal Expansion Valve
1992ChevroletK1500 Suburban————N/ACompatible with rear A/C.; Thermal Expansion Valve
1992ChevroletK2500—5.7LV8—N/AThermal Expansion Valve
1992ChevroletK2500—6.2LV8—N/AThermal Expansion Valve
1992ChevroletK2500—5.0LV8—N/AThermal Expansion Valve
1992ChevroletK2500—4.3LV6—N/AThermal Expansion Valve
1992ChevroletK2500—7.4LV8—N/AThermal Expansion Valve
1992ChevroletK2500 Suburban————N/ACompatible with rear A/C.; Thermal Expansion Valve
1992ChevroletK3500————N/ACompatible with rear A/C.; Thermal Expansion Valve
1992GMCC1500————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCC1500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCC2500————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCC2500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCC3500————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCK1500————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCK1500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCK2500————N/ACompatible with rear A/C.; Thermal Expansion Valve
1992GMCK2500 Suburban————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCK3500————RearCompatible with rear A/C.; Thermal Expansion Valve
1992GMCYukon————RearCompatible with rear A/C.; Thermal Expansion Valve
1991ChevroletAstro————RearThermal Expansion Valve