Global Parts 3411994 A/C Expansion Valve - Front

OE-Style A/C Expansion Valve for Sienna

Global Parts 3411994 is an A/C expansion valve for the front HVAC circuit on select Toyota Sienna models. It meters refrigerant flow into the evaporator so the system can absorb heat efficiently and deliver stable cabin cooling.

Key Features

• Direct replacement A/C expansion valve for the front position
• Designed for 2017-2020 Toyota Sienna applications
• Helps regulate refrigerant flow before the evaporator
• Supports consistent evaporator performance during A/C operation
• Global Parts part number 3411994 for catalog matching

Detailed Description

This expansion valve is used in the refrigerant circuit to reduce pressure and control refrigerant delivery into the evaporator core. Proper metering is important for maintaining cooling performance, especially on a Toyota Sienna with front air conditioning. Global Parts 3411994 is listed for 2017-2020 Toyota Sienna, front, and cross-references UAC EX10685C for the same application. It also references OE-style numbers including 88515-08170 and 447500-4490.

What It Helps Address

• Weak or inconsistent front A/C cooling
• Improper refrigerant metering at the evaporator
• Temperature fluctuations during compressor cycling
• Reduced evaporator efficiency from a worn valve
• Service-related A/C performance issues on Toyota Sienna models

Installation Notes and Tips

Fits 2017-2020 Toyota Sienna, front. Verify the refrigerant system is properly evacuated before replacement, and inspect related seals, lines, and the evaporator area during service. Because the expansion valve is part of the refrigerant control circuit, correct installation and system recharge procedures are important for reliable operation.

Quality Assurance

Global Parts recommends replacing the expansion valve/orifice tube each time the A/C system is serviced to help maintain proper refrigerant control and cooling performance.