Universal Air EX9745C A/C Expansion Valve - Front
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Universal Air
 Block Expansion Valve

Universal Air EX9745C A/C Expansion Valve - Front

Brand Universal Air EX9745C
Position Front
Product line Block Expansion Valve
Fits Cadillac, Chevrolet, and GMC · 67 vehicles

Block expansion valve. Regulates refrigerant flow for consistent A/C performance.

A/C expansion valve. Controls refrigerant metering in the HVAC system.

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Block Expansion Valve for GM A/C Service

Universal Air EX9745C is a block expansion valve for automotive air conditioning systems. It is listed for select Chevrolet, GMC, and Cadillac applications, including Silverado, Sierra, Tahoe, Yukon, and Escalade models.

Key Features

  • Part type: A/C expansion valve
  • Brand line: Block Expansion Valve
  • Direct fitment listed for multiple GM trucks and SUVs
  • Supports refrigerant flow control at the evaporator inlet
  • Fits vehicles with N/A and front-position applications as shown below

Detailed Description

The Universal Air EX9745C block expansion valve is used in HVAC systems to meter refrigerant into the evaporator based on system demand. This part number is listed for 2013-2018 Chevrolet Cheyenne, 2014-2016 Chevrolet Silverado 1500, 2015-2016 Chevrolet Silverado 2500, 2015-2016 Chevrolet Silverado 2500 HD, 2015-2016 Chevrolet Silverado 3500 HD, 2015-2018 Chevrolet Silverado 3500, 2015-2016 GMC Sierra, 2014-2016 GMC Sierra 1500, 2015-2016 GMC Sierra 2500 HD, 2015-2016 GMC Sierra 3500 HD, 2015-2016 Cadillac Escalade, 2015-2016 Cadillac Escalade ESV, 2015-2016 Chevrolet Tahoe, 2015-2016 GMC Yukon, and 2015-2016 GMC Yukon XL. The EX9745C is also listed for 2016 Chevrolet Suburban 3500 HD front applications.

Universal Air’s Block Expansion Valve line identifies this component as a block-style A/C flow restrictor used in GM truck and SUV HVAC layouts. If you are replacing a Chevrolet Silverado A/C expansion valve, GMC Sierra block expansion valve, or Cadillac Escalade front expansion valve, EX9745C provides a fitment-specific service part reference.

What It Helps Address

  • Weak or inconsistent cabin cooling
  • Improper refrigerant metering at the evaporator
  • HVAC performance issues tied to a restricted or worn expansion valve
  • A/C system service needs on Chevrolet Silverado, GMC Sierra, and Cadillac Escalade platforms
  • Front HVAC repair on listed SUV applications

Installation Notes and Tips

Verify the vehicle’s year, model, and HVAC configuration before ordering. This part is listed for both N/A and front positions depending on application, so match the exact fitment row to the vehicle being serviced. During A/C repair, the system should be properly evacuated and recharged after component replacement, and related seals or contamination issues should be inspected as part of the repair process.

Quality Assurance

Universal Air EX9745C is cataloged as a block expansion valve for the listed GM applications and is identified by part number EX9745C for fitment-based ordering and service lookup.

Related reading

This part fits 67 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2018ChevroletCheyenne————N/ABlock Expansion Valve
2018ChevroletSilverado 3500————N/ABlock Expansion Valve
2017ChevroletCheyenneMidnight———N/ABlock Expansion Valve
2017ChevroletCheyenneZ71 LT———N/ABlock Expansion Valve
2017ChevroletCheyenneHigh Country———N/ABlock Expansion Valve
2017ChevroletCheyenneLT———N/ABlock Expansion Valve
2017ChevroletCheyenneLTZ———N/ABlock Expansion Valve
2017ChevroletSilverado 3500————N/ABlock Expansion Valve
2016CadillacEscalade————FrontBlock Expansion Valve
2016CadillacEscalade————N/ABlock Expansion Valve
2016CadillacEscalade ESV————FrontBlock Expansion Valve
2016ChevroletCheyenne—6.2LV8GASN/ABlock Expansion Valve
2016ChevroletCheyenne—5.3LV8GASN/ABlock Expansion Valve
2016ChevroletSilverado 1500————N/ABlock Expansion Valve
2016ChevroletSilverado 2500Base——GASN/ABlock Expansion Valve
2016ChevroletSilverado 2500 HD————N/ABlock Expansion Valve
2016ChevroletSilverado 3500————N/ABlock Expansion Valve
2016ChevroletSilverado 3500 HD————N/ABlock Expansion Valve
2016ChevroletSuburban 3500 HD————FrontBlock Expansion Valve
2016ChevroletTahoe————FrontBlock Expansion Valve
2016GMCSierraSLE———N/ABlock Expansion Valve
2016GMCSierraDenali———N/ABlock Expansion Valve
2016GMCSierra 1500————N/ABlock Expansion Valve
2016GMCSierra 2500 HD————N/ABlock Expansion Valve
2016GMCSierra 3500 HD————N/ABlock Expansion Valve
2016GMCYukon————FrontBlock Expansion Valve
2016GMCYukon XL————FrontBlock Expansion Valve
2015CadillacEscaladeBase——GASFrontBlock Expansion Valve
2015CadillacEscaladePlatinum——GASFrontBlock Expansion Valve
2015CadillacEscaladePremium——GASFrontBlock Expansion Valve
2015CadillacEscaladePremium——FLEXN/ABlock Expansion Valve
2015CadillacEscaladeBase——FLEXFrontBlock Expansion Valve
2015CadillacEscaladePlatinum——FLEXFrontBlock Expansion Valve
2015CadillacEscaladePlatinum——FLEXN/ABlock Expansion Valve
2015CadillacEscaladePremium——FLEXFrontBlock Expansion Valve
2015CadillacEscaladeLuxury——GASFrontBlock Expansion Valve
2015CadillacEscaladeLuxury——FLEXFrontBlock Expansion Valve
2015CadillacEscalade ESVBase——GASFrontBlock Expansion Valve
2015CadillacEscalade ESVPlatinum——GASFrontBlock Expansion Valve
2015CadillacEscalade ESVPlatinum——FLEXFrontBlock Expansion Valve
2015CadillacEscalade ESVPremium——GASFrontBlock Expansion Valve
2015CadillacEscalade ESVPremium——FLEXFrontBlock Expansion Valve
2015CadillacEscalade ESVBase——FLEXFrontBlock Expansion Valve
2015CadillacEscalade ESVLuxury——GASFrontBlock Expansion Valve
2015CadillacEscalade ESVLuxury——FLEXFrontBlock Expansion Valve
2015ChevroletCheyenneCheyenne6.2LV8GASN/ABlock Expansion Valve
2015ChevroletSilverado 1500————N/ABlock Expansion Valve
2015ChevroletSilverado 2500———GASN/ABlock Expansion Valve
2015ChevroletSilverado 2500 HD————N/ABlock Expansion Valve
2015ChevroletSilverado 3500————N/ABlock Expansion Valve
2015ChevroletSilverado 3500 HD————N/ABlock Expansion Valve
2015ChevroletTahoe————FrontBlock Expansion Valve
2015GMCSierraSLE———N/ABlock Expansion Valve
2015GMCSierraDenali———N/ABlock Expansion Valve
2015GMCSierra 1500————N/ABlock Expansion Valve
2015GMCSierra 2500 HD————N/ABlock Expansion Valve
2015GMCSierra 3500 HD————N/ABlock Expansion Valve
2015GMCYukon————FrontBlock Expansion Valve
2015GMCYukon XL————FrontBlock Expansion Valve
2014ChevroletCheyenneCheyenne6.2LV8GASN/ABlock Expansion Valve
2014ChevroletSilverado 1500————N/ABlock Expansion Valve
2014GMCSierra 1500————N/ABlock Expansion Valve
2013ChevroletCheyenneCheyenne——FLEXN/ABlock Expansion Valve
2010ChevroletCheyenne———GASN/ABlock Expansion Valve
2009ChevroletCheyenne————N/ABlock Expansion Valve
2008ChevroletCheyenne————N/ABlock Expansion Valve
2007ChevroletCheyenne————N/ABlock Expansion Valve