HomeHVAC > A/C Flow RestrictorsUniversal Air EX10678C A/C Expansion Valve
Part #: EX10678C

Universal Air EX10678C A/C Expansion Valve

Block Expansion Valve
6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Block Expansion Valve
Fitment: Lexus, ES300h and ES350
Easy Returns — Return within 60 days for a full refund
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Overview of Universal Air Block Expansion Valve EX10678C

The Universal Air Block Expansion Valve EX10678C is designed specifically for Lexus ES300h and ES350 models. This A/C expansion valve helps regulate refrigerant flow within the vehicle's air conditioning system, ensuring optimal cooling performance.

  • Compatible with Lexus ES300h and ES350 models
  • Part number EX10678C for precise identification
  • Category: HVAC > A/C Flow Restrictors
  • Type: A/C Expansion Valve
  • Manufactured by Universal Air

About the Block Expansion Valve Product Line

The Block Expansion Valve product line from Universal Air focuses on reliable and efficient A/C flow restrictors designed to maintain proper refrigerant control. This line includes components engineered to meet specific vehicle requirements, such as the EX10678C, which is tailored for Lexus ES series models. The Block Expansion Valve ensures consistent performance and compatibility within the HVAC system.

Detailed Product Description

The EX10678C A/C expansion valve by Universal Air is an essential component for the air conditioning system in Lexus ES300h and ES350 vehicles. It functions by controlling the flow of refrigerant into the evaporator, which is critical for maintaining the correct pressure and temperature balance. Proper operation of this valve helps prevent issues such as inefficient cooling or compressor damage. This part is categorized under HVAC > A/C Flow Restrictors and is designed to meet the specifications required by the vehicle manufacturer.

Common Issues Addressed by This Expansion Valve

  • Inconsistent or weak air conditioning cooling
  • Refrigerant flow irregularities causing system inefficiency
  • Compressor cycling problems due to pressure imbalances
  • Excessive wear on A/C system components from improper refrigerant control
  • System freeze-ups or overheating caused by faulty expansion valve operation

Installation Notes and Tips

  • Ensure compatibility with Lexus ES300h and ES350 before installation
  • Follow manufacturer guidelines for refrigerant handling and system evacuation
  • Inspect related HVAC components for wear or damage during replacement
  • Use proper tools to avoid damage to the valve or surrounding parts
  • Test the A/C system after installation to confirm proper refrigerant flow and cooling performance

Quality Assurance and Warranty

Universal Air provides quality components designed to meet OEM standards. The EX10678C expansion valve undergoes manufacturing quality checks to ensure reliable operation within the HVAC system. Warranty details should be confirmed with the point of purchase or Universal Air directly, as coverage may vary.

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2018LexusES300hN/AUSA Built; Block Expansion Valve
2018LexusES350N/AUSA Built; Block Expansion Valve
2017LexusES300hN/AUSA Built; Block Expansion Valve
2017LexusES350N/AUSA Built; Block Expansion Valve
2016LexusES300hN/AUSA Built; Block Expansion Valve
2016LexusES350N/AUSA Built; Block 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.