HomeHVAC > A/C Flow RestrictorsUniversal Air EX10103C A/C Expansion Valve
Part #: EX10103C

Universal Air EX10103C A/C Expansion Valve

Block Expansion Valve
35 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$22.45Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Block Expansion Valve
Fitment: Lexus and Toyota, SC430, GS300, GS430, IS300, RAV4, and GS400
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Universal Air Block Expansion Valve EX10103C

The Universal Air Block Expansion Valve EX10103C is designed for precise control of refrigerant flow in automotive air conditioning systems. This A/C expansion valve is compatible with select Lexus and Toyota models, ensuring reliable performance and proper cooling efficiency.

  • Compatible with Lexus GS300, GS400, GS430, IS300, SC430, and Toyota RAV4
  • Part number EX10103C for accurate identification and replacement
  • Part of the Universal Air Block Expansion Valve product line
  • Controls refrigerant flow to optimize A/C system performance
  • Designed for HVAC A/C flow restrictor applications

About the Block Expansion Valve Product Line

The Block Expansion Valve line by Universal Air focuses on delivering precise refrigerant metering components for automotive HVAC systems. This product line includes expansion valves engineered to regulate refrigerant flow accurately, which is critical for maintaining consistent air conditioning performance. The EX10103C is a part of this line, providing a reliable solution for specific Lexus and Toyota vehicles requiring exact flow restriction in their A/C systems.

Detailed Product Description

The EX10103C A/C expansion valve from Universal Air is engineered to meet the specifications of various Lexus and Toyota models, including the GS300, GS400, GS430, IS300, SC430, and RAV4. This valve functions as a flow restrictor within the HVAC system, controlling the amount of refrigerant entering the evaporator. Proper refrigerant flow is essential for efficient cooling and system longevity. Using the correct expansion valve like the EX10103C ensures the air conditioning system operates within designed parameters, preventing issues such as overcooling or insufficient cooling.

Common Applications and Issues Addressed

  • Restores proper refrigerant flow in Lexus GS300 and Toyota RAV4 A/C systems
  • Resolves inconsistent cabin cooling in Lexus IS300 and SC430 models
  • Prevents evaporator freezing caused by faulty expansion valves
  • Addresses pressure imbalances in the A/C system of Lexus GS430 and GS400
  • Improves overall HVAC system efficiency and reliability

Installation Notes and Tips

  • Ensure compatibility by verifying vehicle make and model before installation
  • Follow manufacturer guidelines for refrigerant handling and system evacuation
  • Replace the expansion valve as part of a complete A/C system service for best results
  • Check for leaks and proper refrigerant charge after installation
  • Professional installation is recommended to maintain system integrity

Quality Assurance and Warranty

The Universal Air Block Expansion Valve EX10103C is manufactured to meet industry standards for automotive HVAC components. While specific warranty details are not provided, Universal Air products typically undergo quality control testing to ensure durability and performance. Using the correct part number EX10103C guarantees compatibility and helps maintain the original equipment specifications for Lexus and Toyota A/C systems.

This part fits 35 vehicles. Search below:

YearMakeModelPositionNotes
2010LexusSC430N/ABlock Expansion Valve
2009LexusSC430N/ABlock Expansion Valve
2008LexusSC430N/ABlock Expansion Valve
2007LexusSC430N/ABlock Expansion Valve
2006LexusSC430N/ABlock Expansion Valve
2005LexusGS300N/ABlock Expansion Valve
2005LexusGS430N/ABlock Expansion Valve
2005LexusIS300N/ABlock Expansion Valve
2005LexusSC430N/ABlock Expansion Valve
2005ToyotaRAV4N/ABlock Expansion Valve
2004LexusGS300N/ABlock Expansion Valve
2004LexusGS430N/ABlock Expansion Valve
2004LexusIS300N/ABlock Expansion Valve
2004LexusSC430N/ABlock Expansion Valve
2004ToyotaRAV4N/ABlock Expansion Valve
2003LexusGS300N/ABlock Expansion Valve
2003LexusGS430N/ABlock Expansion Valve
2003LexusIS300N/ABlock Expansion Valve
2003LexusSC430N/ABlock Expansion Valve
2003ToyotaRAV4N/ABlock Expansion Valve
2002LexusGS300N/ABlock Expansion Valve
2002LexusGS430N/ABlock Expansion Valve
2002LexusIS300N/ABlock Expansion Valve
2002LexusSC430N/ABlock Expansion Valve
2002ToyotaRAV4N/ABlock Expansion Valve
2001LexusGS300N/ABlock Expansion Valve
2001LexusGS430N/ABlock Expansion Valve
2001LexusIS300N/ABlock Expansion Valve
2001ToyotaRAV4N/ABlock Expansion Valve
2000LexusGS300N/ABlock Expansion Valve
2000LexusGS400N/ABlock Expansion Valve
1999LexusGS300N/ABlock Expansion Valve
1999LexusGS400N/ABlock Expansion Valve
1998LexusGS300N/ABlock Expansion Valve
1998LexusGS400N/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.