Four Seasons
Expansion Valve

Four Seasons 39446 A/C Expansion Valve

Brand Four Seasons 39446
Color Aluminum
Description Expansion Valves
Liquid Inlet Fitting Gender Female
Liquid Inlet Fitting Thread Diameter No. 6
Liquid Inlet Size IN 0.35
Liquid Inlet Size MM 8.9
Liquid Inlet Style Female Insert O-Ring
Liquid Inlet Thread Type Not Threaded
Liquid Inlet Type O-Ring
Liquid Outlet Fitting Gender Female
Liquid Outlet Fitting Thread Diameter No. 10
Liquid Outlet Style Female Insert O-Ring
Liquid Outlet Thread Type Not Threaded
Liquid Outlet Type O-Ring
Lqd Out Size IN 0.650
Lqd Out Size MM 16.600
Material Aluminum
Meets / Exceeds OEM? Yes
Mounting Hole Quantity 2
O-Ring A Number/Desc [24607] / Green O-Ring
O-Ring B Number/Desc [24610] / Green O-Ring
Refrigerant Type R134A
Style w/o Solenoid
Suc In Size IN 0.650
Suc In Size MM 16.600
Suc Out Size IN 0.65
Suc Out Size MM 16.6
Suction Inlet Fitting Gender Female
Suction Inlet Fitting Thread Diameter No. 10
Suction Inlet Style Female Insert O-Ring
Suction Inlet Thread Type Not Threaded
Suction Inlet Type O-Ring
Suction Outlet Fitting Gender Female
Suction Outlet Fitting Thread Diameter No. 10
Suction Outlet Style Female Insert O-Ring
Suction Outlet Thread Type Not Threaded
Suction Outlet Type O-Ring
Super Heat -1.500
Switch Included? Not Included
Tonnage 1.5
Type Block Type
Product line Expansion Valve
Fits Mazda · 4 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable A/C flow control.

Aluminum construction. Lightweight material resists corrosion in demanding HVAC service.

Block type design. Provides precise refrigerant metering without a solenoid.

Cross-references Dynomax 39446, Global Parts Distributors LLC 3411626 and UAC EX10445C for the same application. See all 10.

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Four Seasons 39446 Expansion Valve for Mazda 5

The Four Seasons 39446 expansion valve is a block-type A/C flow restrictor built for R134A systems and direct replacement service on select Mazda 5 applications. It is an aluminum HVAC component that meets or exceeds OEM requirements and is specified for 2012-2015 Mazda 5 models.

Key Features

  • Brand: Four Seasons Expansion Valve
  • Part number: 39446
  • Block-type A/C expansion valve for R134A refrigerant
  • Aluminum construction with aluminum finish
  • Female insert O-ring inlet and outlet connections
  • Mounting hole quantity: 2
  • Meets or exceeds OEM specifications
  • Designed for 1.5 tonnage applications
  • Style: w/o solenoid

Product Details

Four Seasons 39446 is an A/C expansion valve used to regulate refrigerant flow into the evaporator, helping maintain proper system pressure and cooling performance. This block-type valve uses female O-ring fittings on the suction and liquid sides, with No. 10 suction inlet and outlet thread diameters and No. 6 liquid inlet / No. 10 liquid outlet thread diameters. It is specified for R134A systems and includes the correct O-ring style connection design for service on the listed Mazda 5 fitment. If you are replacing a worn or restricted Mazda 5 expansion valve, part number 39446 provides an OE-style service solution for 2012-2015 Mazda 5, N/A.

This part cross-references UAC EX10445C for the same application.

Common Problems This Part Can Address

  • Weak or inconsistent cabin cooling
  • Incorrect refrigerant metering at the evaporator
  • A/C system pressure imbalance
  • Temperature swings from a sticking expansion valve
  • Reduced cooling performance in a Mazda 5 A/C system

Installation Notes and Tips

Verify refrigerant type, fitting style, and mounting points before installation. Replace the valve only after the system has been properly evacuated and inspected for contamination, leaks, and compressor debris. Confirm the O-ring sealing surfaces are clean and undamaged, and use the correct service procedure for R134A HVAC systems. Fits 2012-2015 Mazda 5, N/A.

Quality Assurance

Four Seasons supplies HVAC service parts built to meet or exceed OEM specifications. Part number 39446 is an aluminum expansion valve intended for direct-fit service on the listed Mazda 5 applications.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2015Mazda5N/AExpansion Valve
2014Mazda5N/AExpansion Valve
2013Mazda5N/AExpansion Valve
2012Mazda5N/AExpansion Valve
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dynomax — 39446Global Parts Distributors LLC — 3411626UAC — EX10445C1803412174467594463131438A17446CE4361J14T39446