Global Parts 3411839 A/C Expansion Valve - Rear

Global Parts 3411839 A/C Expansion Valve

Global Parts 3411839 is an A/C expansion valve for the rear HVAC system on select Mazda CX-9 models. It meters refrigerant flow before the evaporator so the system can use refrigerant cooling capacity efficiently. This part is a direct-fit service component for rear air conditioning repair on 2007-2015 Mazda CX-9 applications.

Key Features

• Rear A/C expansion valve for HVAC refrigerant flow control
• Fits 2007-2015 Mazda CX-9, rear
• Global Parts part number 3411839
• OE-style service replacement for rear evaporator circuit repair
• This part cross-references Four Seasons 39303 for the same application

Product Details

The expansion valve regulates refrigerant entering the evaporator, helping the rear HVAC system maintain proper cooling performance. On Mazda CX-9 models, a worn or restricted valve can affect rear cabin temperature control and overall A/C operation. Global Parts 3411839 is built for the rear position and is listed for 2007-2015 Mazda CX-9 fitment. If you are servicing the rear air conditioning system on a Mazda CX-9, this part number 3411839 is the correct reference to verify before installation.

Common A/C Issues It May Address

• Weak rear A/C cooling
• Uneven cabin temperature between front and rear zones
• Restricted refrigerant flow at the evaporator
• Erratic rear vent temperature output
• Service replacement for a faulty rear expansion valve

Installation Notes

Recover the refrigerant before opening the system, then inspect the evaporator circuit, seals, and related A/C components for contamination or wear. Replace the expansion valve during A/C service when the system has been opened or when flow restriction is suspected. Verify rear-position fitment for 2007-2015 Mazda CX-9 applications before installation.

Quality Assurance

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