Global Parts 3411378 A/C Expansion Valve

Global Parts 3411378 A/C Expansion Valve

Global Parts 3411378 is an A/C expansion valve for the refrigerant flow control side of the HVAC system. It slows refrigerant before the evaporator so the system can use cooling capacity efficiently. This part is a direct fit for select Mazda Protege and Mazda Protege5 applications.

Key Features

• A/C expansion valve for refrigerant metering at the evaporator
• Helps regulate refrigerant flow for stable cabin cooling performance
• Fits 2001-2003 Mazda Protege and 2002-2003 Mazda Protege5
• Global Parts part number 3411378
• Cross-references UAC EX10139C for the same application

Detailed Description

This Global Parts expansion valve is built for HVAC systems that use an expansion valve to control refrigerant entering the evaporator. By reducing refrigerant pressure and flow before the evaporator, it supports efficient heat exchange and consistent A/C operation. It is a fitment-based replacement for Mazda Protege and Mazda Protege5 models listed below, and part number 3411378 is also referenced in aftermarket catalogs for the same application.

Compatible With: 2001-2003 Mazda Protege, N/A; 2002-2003 Mazda Protege5, N/A.

What It Helps Address

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• A/C performance loss after system service
• Restricted refrigerant flow caused by a worn valve
• HVAC operation issues tied to an aging expansion valve

Installation Notes and Tips

Replace the expansion valve during A/C service when the system is opened for repair or component replacement. Verify the vehicle application before installation, and inspect the evaporator, lines, and seals for contamination or wear that could affect system performance. Proper evacuation and recharge procedures are required after service.

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 efficiency.