Global Parts 3411322 A/C Expansion Valve - Rear

Global Parts 3411322 A/C Expansion Valve

Global Parts 3411322 is an A/C expansion valve/orifice tube for vehicle air conditioning systems that need refrigerant flow control at the evaporator. It helps regulate refrigerant before it enters the evaporator so the system can use cooling capacity efficiently. This part number 3411322 is a direct-fit service component for select GM, Buick, Saab, and Isuzu applications.

Key Features

• Controls refrigerant flow before the evaporator
• Supports proper A/C system pressure regulation
• Service replacement for select rear A/C applications
• Global Parts part number 3411322
• Cross-references Four Seasons 39011 and UAC EX5900C for the same application

Detailed Description

This A/C expansion valve is used in systems where refrigerant must be metered before reaching the evaporator core. By slowing refrigerant flow at the correct point in the circuit, the valve helps the air conditioning system deliver consistent cooling performance. Global Parts 3411322 is listed for rear A/C applications on vehicles such as the Chevrolet Trailblazer, GMC Envoy, and Buick Rainier, along with select Saab 9-7x and Isuzu Ascender models.

Compatible With 2009 Saab 9-7x, N/A; 2005-2007 Buick Rainier, N/A; 2003-2006 Chevrolet Trailblazer, Rear; 2003-2006 Chevrolet Trailblazer EXT, Rear; 2003-2006 GMC Envoy, Rear; 2003-2006 GMC Envoy XL, Rear; 2005-2006 Isuzu Ascender, Rear; 2004-2005 GMC Envoy XUV, Rear; 2003-2004 Isuzu Ascender, Rear; 2002 Chevrolet Trailblazer, Rear; 2002 Chevrolet Trailblazer EXT, Rear; 2002 GMC Envoy, Rear; 2002 GMC Envoy XL, Rear.

What It Helps Address

• Weak or inconsistent rear A/C cooling
• Improper refrigerant metering at the evaporator
• Pressure imbalance in the air conditioning circuit
• Reduced cooling output after A/C service
• Service issues on rear HVAC systems in Trailblazer, Envoy, and Ascender platforms

Installation Notes and Tips

Replace the expansion valve/orifice tube during A/C service when the system is opened or contaminated. Clean the system as needed, verify the correct refrigerant charge, and inspect related components before reassembly. For 2003-2006 Chevrolet Trailblazer, 2003-2006 GMC Envoy, and related rear HVAC applications, note the OEM inline filter 3441237 listed in the fitment notes.

Quality Assurance

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