Global Parts 3411389 A/C Expansion Valve - Front

A/C Expansion Valve for Mercedes-Benz HVAC Service

Global Parts 3411389 is an A/C expansion valve/orifice tube component that regulates refrigerant flow before it enters the evaporator. By slowing refrigerant at the correct point in the system, it helps the air conditioning circuit deliver consistent cooling performance on supported Mercedes-Benz applications.

Compatible With Mercedes-Benz ML320, ML350, ML430, ML500, ML55 AMG, R320, R350, and R500 applications listed below, this Global Parts 3411389 replacement is a direct-fit service part for HVAC repair work.

Key Features

• Global Parts part number 3411389
• A/C expansion valve/orifice tube design for refrigerant metering
• Helps control refrigerant flow before the evaporator
• Supports efficient evaporator cooling performance
• Cross-references DENSO Auto Parts 475-2021 and Four Seasons 39212 for the same application

Detailed Description

The expansion valve/orifice tube is a critical HVAC metering component that reduces refrigerant flow so the evaporator can absorb heat effectively. Global Parts 3411389 is built for Mercedes-Benz A/C service applications where precise refrigerant control is needed to restore proper cooling behavior. This part number 3411389 is used across multiple Mercedes-Benz ML-Class and R-Class vehicles, including ML320, ML350, ML430, ML500, ML55 AMG, R320, R350, and R500 models.

Fits 2007 Mercedes-Benz ML320, N/A. Fits 1998-2003 Mercedes-Benz ML320, N/A. Fits 2002-2007 Mercedes-Benz ML500, N/A. Fits 2007 Mercedes-Benz R320, Front. Fits 2006-2007 Mercedes-Benz R350, Front. Fits 2006-2007 Mercedes-Benz R500, Front. Fits 2003-2005 Mercedes-Benz ML350, N/A. Fits 2000-2003 Mercedes-Benz ML55 AMG, N/A. Fits 1999-2001 Mercedes-Benz ML430, N/A.

Common A/C Problems This Part Addresses

• Weak cabin cooling from improper refrigerant metering
• Evaporator performance issues during A/C service
• Inconsistent vent temperatures on Mercedes-Benz HVAC systems
• Restricted refrigerant flow caused by a worn metering component
• Service-related A/C performance loss after system repair

Installation Notes and Tips

Replace the expansion valve/orifice tube during A/C service when the system is opened for repair. Verify the vehicle application, refrigerant routing, and component location before installation. For Mercedes-Benz ML320 and related ML-Class and R-Class models, confirm the correct position listed for your vehicle before ordering.

Quality Assurance

Global Parts supplies HVAC service components for vehicle-specific repair applications. Part number 3411389 is listed with confirmed interchange references and model-specific fitment for Mercedes-Benz A/C service.