Global Parts 3411500 A/C Expansion Valve - Front

Mercedes-Benz A/C Expansion Valve 3411500

Global Parts 3411500 is an A/C expansion valve/orifice tube for Mercedes-Benz HVAC systems. It regulates refrigerant flow before the evaporator so the system can use the refrigerant’s cooling capacity efficiently. This part is a direct-fit service component for select Mercedes-Benz GL, ML, R, and GL63 AMG applications.

Key Features

• Controls refrigerant flow ahead of the evaporator
• Supports proper A/C system pressure regulation
• Built for HVAC service on select Mercedes-Benz models
• Global Parts part number 3411500
• Cross-references Four Seasons 39370 and UAC EX9724C for the same application

Detailed Description

This expansion valve is used in Mercedes-Benz A/C systems to meter refrigerant into the evaporator at the correct rate. By slowing refrigerant before it reaches the evaporator, the system can absorb heat more effectively and maintain stable cooling performance. Global Parts 3411500 is listed for front-position applications on select Mercedes-Benz GL350, GL450, GL550, GL63 AMG, ML350, ML450, ML550, ML63 AMG, R320, and R350 models, as well as N/A-position listings where specified in the fitment data.

Fits 2010-2013 Mercedes-Benz GL350, Front. Fits 2007-2013 Mercedes-Benz GL450, Front. Fits 2008-2013 Mercedes-Benz GL550, Front. Fits 2013 Mercedes-Benz GL63 AMG, Front. Fits 2006-2012 Mercedes-Benz R350, Front. Fits 2007-2009 Mercedes-Benz GL320, Front. Fits 2007-2009 Mercedes-Benz R320, Front. Fits 2008-2014 Mercedes-Benz ML550, N/A. Fits 2013-2014 Mercedes-Benz ML63 AMG, N/A. Fits 2007-2011 Mercedes-Benz ML63 AMG, N/A. Fits 2006-2011 Mercedes-Benz ML350, N/A. Fits 2010-2011 Mercedes-Benz ML450, N/A. Fits 2008-2009 Mercedes-Benz ML320, N/A. Fits 2014 Mercedes-Benz GL450, N/A.

What It Helps Address

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• A/C performance loss after system service
• Pressure control issues in the HVAC circuit
• Service-related contamination concerns when replacing A/C flow components

Installation Notes and Tips

Inspect the A/C system for contamination, debris, and seal condition before installation. Replace the expansion valve/orifice tube during A/C service as recommended by the manufacturer. Verify the vehicle’s exact model year, engine package, and front or N/A fitment before ordering. Proper evacuation, leak checking, and recharge procedures are required after installation.

Quality Assurance

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