HomeHVAC > A/C Flow RestrictorsUniversal Air EX9788C A/C Expansion Valve
Part #: EX9788C

Universal Air EX9788C A/C Expansion Valve

Block Expansion Valve
26 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Block Expansion Valve
Fitment: Kia, Cadenza and Optima
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Reliable A/C Expansion Valve for Kia Cadenza and Optima

The Universal Air Block Expansion Valve EX9788C is designed to regulate refrigerant flow in the air conditioning systems of Kia Cadenza and Optima models. This A/C expansion valve ensures proper cooling performance by maintaining optimal pressure and temperature within the HVAC system.

Key Features of the Universal Air EX9788C

  • Specifically compatible with Kia Cadenza and Optima vehicles
  • Part number EX9788C for precise identification and fitment
  • Part of the Universal Air Block Expansion Valve product line
  • Designed to control refrigerant flow efficiently in automotive A/C systems
  • Manufactured to meet OEM standards for reliable HVAC operation

About the Block Expansion Valve Product Line

The Block Expansion Valve line from Universal Air focuses on providing dependable A/C flow restrictors that regulate refrigerant flow within automotive HVAC systems. This product line is engineered to maintain consistent cooling performance by precisely controlling pressure and temperature, which is critical for vehicles like the Kia Cadenza and Optima. The EX9788C is a part of this line, offering a direct replacement solution that supports system efficiency and longevity.

Detailed Product Description

The EX9788C A/C expansion valve is an essential component in the air conditioning system of Kia Cadenza and Optima models. It functions by restricting and metering the flow of refrigerant from the condenser to the evaporator, ensuring the system operates within designed parameters. Proper function of this valve helps maintain cabin comfort and prevents issues related to improper refrigerant flow such as freezing or overheating of the evaporator coil.

Common Issues Addressed by the EX9788C Expansion Valve

  • Inconsistent or insufficient cooling in Kia Cadenza and Optima A/C systems
  • Refrigerant flow irregularities causing evaporator freezing
  • Pressure imbalances leading to compressor strain or failure
  • HVAC system inefficiency resulting in increased energy consumption
  • Replacement of faulty or worn expansion valves to restore system performance

Installation Notes and Tips

  • Ensure compatibility by verifying the part number EX9788C with your Kia Cadenza or Optima model year
  • Follow manufacturer guidelines for refrigerant handling and system evacuation before installation
  • Use proper tools to avoid damage to the valve or surrounding components
  • Check for leaks and system pressure after installation to confirm proper operation
  • Professional installation is recommended for accurate fitment and system integrity

Quality Assurance and Warranty Information

The Universal Air EX9788C expansion valve is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided here, Universal Air products typically come with a limited warranty covering defects in materials and workmanship. It is advisable to consult the product documentation or supplier for exact warranty terms related to this part.

This part fits 26 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2018KiaCadenzaN/ATo 01-31-18; Block Expansion Valve
2018KiaOptimaEX2.4LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaS2.4LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaSX2.0LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaLX2.4LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaLX 1.6T1.6LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaSXL2.0LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaEX Tech2.4LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaSX Turbo2.0LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaEX Pack2.4LL4GASN/ATo 02/2018; Block Expansion Valve
2018KiaOptimaSXL Turbo2.0LL4GASN/ATo 02/2018; Block Expansion Valve
2017KiaCadenzaN/ATo 01-31-18; Block Expansion Valve
2017KiaOptimaSX2.0LL4GASN/ATo 01/2018; Block Expansion Valve
2017KiaOptimaLX2.4LL4GASN/ATo 01/2018; Block Expansion Valve
2017KiaOptimaEX2.4LL4GASN/ATo 01/2018; Block Expansion Valve
2017KiaOptimaSX Limited2.0LL4GASN/ATo 01/2018; Block Expansion Valve
2017KiaOptimaLX 1.6T1.6LL4GASN/ATo 01/2018; Block Expansion Valve
2017KiaOptimaEX Pack2.4LL4GASN/ATo 01/2018; Block Expansion Valve
2017KiaOptimaSXL2.0LL4GASN/ATo 01/2018; Block Expansion Valve
2016KiaOptimaSX2.0LL4GASN/ABlock Expansion Valve
2016KiaOptimaLX2.4LL4GASN/ABlock Expansion Valve
2016KiaOptimaEX2.4LL4GASN/ABlock Expansion Valve
2016KiaOptimaSXL2.0LL4GASN/ABlock Expansion Valve
2016KiaOptimaSX Limited2.0LL4GASN/ABlock Expansion Valve
2016KiaOptimaLX 1.6T1.6LL4GASN/ABlock Expansion Valve
2016KiaOptimaLX1.6LL4GASN/ABlock Expansion Valve

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.