Global Parts 3411814 A/C Expansion Valve - Front

A/C Expansion Valve for GM Front HVAC Systems

Global Parts 3411814 is an A/C expansion valve/orifice tube for front HVAC applications on select Buick, Chevrolet, GMC, and Saturn vehicles. It meters refrigerant flow before the evaporator so the system can use refrigerant cooling capacity efficiently.

• Direct-fit A/C expansion valve for front HVAC service
• Controls refrigerant flow into the evaporator
• Fits 2011-2012 Buick Enclave, front
• Fits 2011-2012 Chevrolet Traverse, front
• Fits 2011-2012 GMC Acadia, front
• Fits 2009-2010 Buick Enclave, front, system contain OEM inline filter 3441234
• Fits 2009-2010 Chevrolet Traverse, front, system contain OEM inline filter 3441234
• Fits 2009-2010 GMC Acadia, front, system contain OEM inline filter 3441234
• Fits 2010 Saturn Outlook, front
• Fits 2009 Saturn Outlook, front, system contain OEM inline filter 3441234
• Fits 2008 Buick Enclave, front, system contain OEM inline filter 3441238
• Fits 2007-2008 GMC Acadia, front, system contain OEM inline filter 3441238
• Fits 2007-2008 Saturn Outlook, front, system contain OEM inline filter 3441238

Key Features

• Global Parts part number 3411814
• OE-style refrigerant metering component for A/C service
• Cross-references DENSO Auto Parts 475-2084 and Four Seasons 39307

What It Does

This expansion valve helps regulate refrigerant entering the evaporator, which is critical for stable cabin cooling performance. It is a direct replacement choice for Buick Enclave, Chevrolet Traverse, and GMC Acadia front A/C systems, as well as Saturn Outlook front applications listed above. Part number 3411814 is also referenced in service catalogs for related GM HVAC repairs.

• Weak or inconsistent front A/C cooling
• Restricted refrigerant flow at the evaporator
• HVAC service on systems that require valve replacement
• Front cabin cooling complaints on Buick Enclave, Chevrolet Traverse, GMC Acadia, and Saturn Outlook

Installation Notes

Verify the vehicle year, make, model, and front HVAC configuration before ordering. Some listed applications note an OEM inline filter requirement in the system, so confirm the existing setup during diagnosis. Replace the expansion valve/orifice tube during A/C service when the system is opened and follow proper evacuation, recovery, and recharge procedures.

Quality Assurance

Global Parts recommends replacing the expansion valve/orifice tube whenever the A/C system is serviced to help maintain proper refrigerant control and service consistency.