Global Parts 3411323 A/C Expansion Valve - Front

A/C Expansion Valve for GM HVAC Service

Global Parts 3411323 is an A/C expansion valve/orifice tube for vehicle HVAC service. It regulates refrigerant flow before the evaporator so the system can use cooling capacity efficiently. This part number 3411323 is a direct-fit option for select Buick Rendezvous, Pontiac Aztek, Pontiac Montana, and Oldsmobile Silhouette applications.

Key Features

• Expansion valve/orifice tube design for A/C refrigerant flow control
• Helps meter refrigerant before it enters the evaporator
• Supports efficient evaporator cooling performance
• Fits 2004-2007 Buick Rendezvous, N/A
• Fits 2002-2005 Buick Rendezvous, Front
• Fits 2001-2005 Pontiac Aztek, N/A
• Fits 2001-2005 Pontiac Montana, Front
• Fits 2001-2004 Oldsmobile Silhouette, Front

Detailed Description

Global Parts 3411323 is built for A/C service on GM minivans and crossovers that use an expansion valve/orifice tube style refrigerant control component. By slowing refrigerant before the evaporator, it helps the HVAC system deliver cooling more effectively. This part cross-references Four Seasons 39099 for the same application.

Common A/C Problems It May Address

• Weak cabin cooling from restricted refrigerant metering
• Uneven evaporator performance during A/C operation
• Service replacement during HVAC repair or component replacement
• Loss of cooling efficiency after contamination in the A/C system

Installation Notes and Tips

Verify the vehicle’s A/C configuration and match the listed position before ordering. For best results, replace the expansion valve/orifice tube during A/C system service and inspect the system for contamination, moisture, or debris before reassembly. Confirm fitment for Buick Rendezvous, Pontiac Aztek, Pontiac Montana, or Oldsmobile Silhouette applications using the exact year and position shown above.

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.