Universal Air EX10078C A/C Expansion Valve

Thermal Expansion Valve for A/C Flow Control

Universal Air EX10078C is a thermal expansion valve for automotive air conditioning systems. It regulates refrigerant flow into the evaporator to support stable cooling performance in the listed applications, including Mazda Miata, Mazda Protege, INFINITI I30, Nissan Maxima, Nissan 240SX, INFINITI J30, Kia Sportage, Subaru Impreza, and Subaru Legacy.

Key Features

• Thermal expansion valve for A/C flow restriction and refrigerant metering
• Direct-fit application coverage for select Mazda, Nissan, INFINITI, Kia, and Subaru models
• Supports consistent evaporator feed in factory-style HVAC systems
• Part number EX10078C for accurate catalog matching
• Universal Air Thermal Expansion Valve product line

Application Details

Universal Air EX10078C is an A/C expansion valve used in HVAC systems that rely on thermal control at the evaporator inlet. It is listed for 1994-1997 Mazda Miata, 1999-2000 Mazda Miata, 1999-2000 Mazda Protege, 1996-1999 INFINITI I30, 1995-1999 Nissan Maxima, 1997-1998 Nissan 240SX, 1995-1997 INFINITI J30, 1995-1997 Kia Sportage, 1993-1996 Subaru Impreza, and 1990-1996 Subaru Legacy. If you are sourcing an EX10078C thermal expansion valve for a Mazda Miata or Nissan Maxima A/C repair, this listing matches the confirmed vehicle coverage.

Common Problems This Part Addresses

• Restricted refrigerant flow at the evaporator inlet
• Inconsistent cabin cooling output
• A/C system performance loss caused by a worn expansion valve
• Improper refrigerant metering in the HVAC circuit
• Service replacement for a failed thermal expansion valve

Installation Notes and Tips

Verify the vehicle year, make, and model against the fitment list before ordering. Confirm the existing valve style and HVAC configuration during diagnosis, and inspect related A/C components for contamination or restriction before installing the replacement. Proper evacuation, leak checking, and recharge procedures are required after A/C service.

Quality Assurance

Universal Air EX10078C is cataloged as a thermal expansion valve for the listed factory-style applications. Use the part number EX10078C to confirm the correct A/C flow restrictor for your vehicle before installation.