HomeHVAC > A/C Flow RestrictorsFour Seasons 39446 A/C Expansion Valve
Part #: 39446

Four Seasons 39446 A/C Expansion Valve

Expansion Valve
4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Expansion Valve
Fitment: Mazda, 5
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Reliable A/C Expansion Valve for Mazda Vehicles

The Four Seasons Expansion Valve 39446 is engineered to regulate refrigerant flow in Mazda vehicles, ensuring efficient air conditioning system performance. Designed specifically for Mazda models, this aluminum block-type valve supports R134a refrigerant systems with precise fitment and durable construction.

Key Features of Four Seasons Expansion Valve 39446

  • Constructed from corrosion-resistant aluminum for durability
  • Compatible with R134a refrigerant systems
  • Block type design with two mounting holes for secure installation
  • Female suction and liquid inlet/outlet fittings with O-ring seals
  • Meets or exceeds OEM specifications for reliable performance
  • Designed for Mazda vehicles, ensuring proper fit and function

About the Four Seasons Expansion Valve Product Line

The Four Seasons Expansion Valve line focuses on precise refrigerant flow control components for automotive HVAC systems. This product line emphasizes OEM-level quality and fitment, providing block-type expansion valves that integrate seamlessly with factory air conditioning setups. The 39446 valve exemplifies this approach by combining durable aluminum construction with exact inlet and outlet sizing to maintain system efficiency.

Detailed Product Description

The Four Seasons Expansion Valve 39446 is crafted from aluminum, featuring a block-type design with two mounting holes for secure attachment. It supports R134a refrigerant and includes female suction inlet and outlet fittings with No. 10 thread diameters, both non-threaded and sealed with green O-rings for leak prevention. The liquid inlet and outlet fittings are also female with O-ring seals, sized at No. 6 and No. 10 respectively, ensuring compatibility with Mazda A/C systems. This valve controls refrigerant flow precisely, contributing to optimal cooling performance and system longevity.

Common Issues Addressed by This Expansion Valve

  • Inconsistent cabin cooling due to faulty refrigerant flow regulation
  • Refrigerant leaks caused by worn or damaged expansion valve seals
  • Reduced A/C system efficiency from clogged or malfunctioning valves
  • Overheating compressor resulting from improper refrigerant metering
  • System pressure imbalances affecting overall HVAC performance

Installation Notes and Tips

  • Ensure compatibility with your specific Mazda model before installation
  • Use proper tools to avoid damaging the aluminum body or fittings
  • Replace O-rings with the included green O-rings to maintain a secure seal
  • Follow manufacturer torque specifications for mounting bolts
  • Evacuate and recharge the A/C system with R134a refrigerant after installation

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39446 meets or exceeds OEM standards, providing reliable performance and durability. Manufactured with precision and tested for quality, this valve is backed by Four Seasons' commitment to automotive HVAC component reliability. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship.

BrandFour Seasons
Part Number39446
PositionExpansion Valve
ColorAluminum
DescriptionExpansion Valves
Liquid Inlet Fitting GenderFemale
Liquid Inlet Fitting Thread DiameterNo. 6
Liquid Inlet Size IN0.35
Liquid Inlet Size MM8.9
Liquid Inlet StyleFemale Insert O-Ring
Liquid Inlet Thread TypeNot Threaded
Liquid Inlet TypeO-Ring
Liquid Outlet Fitting GenderFemale
Liquid Outlet Fitting Thread DiameterNo. 10
Liquid Outlet StyleFemale Insert O-Ring
Liquid Outlet Thread TypeNot Threaded
Liquid Outlet TypeO-Ring
Lqd Out Size IN0.650
Lqd Out Size MM16.600
MaterialAluminum
Meets / Exceeds OEM?Yes
Mounting Hole Quantity2
O-Ring A Number/Desc[24607] / Green O-Ring
O-Ring B Number/Desc[24610] / Green O-Ring
Refrigerant TypeR134A
Stylew/o Solenoid
Suc In Size IN0.650
Suc In Size MM16.600
Suc Out Size IN0.65
Suc Out Size MM16.6
Suction Inlet Fitting GenderFemale
Suction Inlet Fitting Thread DiameterNo. 10
Suction Inlet StyleFemale Insert O-Ring
Suction Inlet Thread TypeNot Threaded
Suction Inlet TypeO-Ring
Suction Outlet Fitting GenderFemale
Suction Outlet Fitting Thread DiameterNo. 10
Suction Outlet StyleFemale Insert O-Ring
Suction Outlet Thread TypeNot Threaded
Suction Outlet TypeO-Ring
Super Heat-1.500
Switch Included?Not Included
Tonnage1.5
TypeBlock Type

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
2015Mazda5N/AExpansion Valve
2014Mazda5N/AExpansion Valve
2013Mazda5N/AExpansion Valve
2012Mazda5N/AExpansion Valve

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1803412174463131438341162639446759446A17446CE4361J14EX10445CT39446

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.