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Four Seasons 39301 A/C Expansion Valve
| Brand | Four Seasons 39301 |
|---|---|
| Color | Aluminum |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Size IN | 0.36 |
| Liquid Inlet Size MM | 9.2 |
| Liquid Inlet Style | FIO |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | Insert O-Ring |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 10 |
| Liquid Outlet Style | FIO |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | Insert O-Ring |
| Lqd Out Size IN | 0.66 |
| Lqd Out Size MM | 16.7 |
| 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 | 0.660 |
| Suc In Size MM | 16.7 |
| Suc Out Size IN | 0.66 |
| Suc Out Size MM | 16.7 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | FIO |
| Suction Inlet Thread Type | Not Threaded |
| Suction Inlet Type | Insert O-Ring |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 12 |
| Suction Outlet Style | FIO |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | Insert O-Ring |
| Super Heat | 5.500 |
| Switch Included? | Not Included |
| Tonnage | 1.000 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Mazda · 8 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable system performance.
Aluminum construction. Lightweight material resists corrosion in demanding A/C service.
Block type design. Provides precise refrigerant flow control without a solenoid.
Cross-references Four Seasons 39301, Global Parts Distributors LLC 3411837 and UAC EX10271C for the same application. See all 13.
Four Seasons 39301 Expansion Valve Overview
Four Seasons 39301 is a block-type A/C expansion valve for R134A systems. It is built from aluminum and uses insert O-ring, female FIO connections for the liquid and suction sides to regulate refrigerant flow in the HVAC circuit.
Compatible With 2006-2007 Mazda 6 and 2007-2012 Mazda CX-7, this expansion valve is an OE-style replacement that meets or exceeds OEM requirements. The Four Seasons Expansion Valve line focuses on precise refrigerant metering for service repairs on late-model air conditioning systems.
Key Features
- Part number: 39301
- Four Seasons Expansion Valve line
- Block-type A/C expansion valve
- Aluminum construction and aluminum finish
- R134A refrigerant type
- Female FIO liquid and suction connections with insert O-ring sealing
- Mounting hole quantity: 2
- Style: w/o solenoid
- Super heat setting: 5.500
- Meets or exceeds OEM specifications
Detailed Description
Four Seasons 39301 meters refrigerant flow through the evaporator circuit to maintain proper A/C performance in vehicles using R134A. The block-style design, aluminum body, and insert O-ring connection points support a direct-service replacement for the factory expansion valve used on Mazda applications. This part number 39301 is listed for 2006-2007 Mazda 6 and 2007-2012 Mazda CX-7, making it a focused solution for Mazda A/C repair work.
This part cross-references UAC (e.g., EX10271C) for the same application.
Common Problems This Part Can Address
- Incorrect refrigerant metering at the evaporator
- Weak or inconsistent cabin cooling
- Restricted A/C flow caused by a worn valve
- System performance issues after A/C service
- Replacement needs on Mazda 6 and Mazda CX-7 HVAC repairs
Installation Notes and Tips
Verify the vehicle uses an R134A system before installation. Match the liquid and suction port sizes, FIO insert O-ring style, and block-type layout to the original component before assembly. Replace and lubricate the sealing O-rings during service, then evacuate and recharge the system to the correct specification after installation. Confirm proper operation on 2006-2007 Mazda 6 and 2007-2012 Mazda CX-7 applications after the repair.
Quality Assurance
Four Seasons lists this expansion valve as meeting or exceeding OEM requirements, making it a service-grade replacement for factory-style HVAC repairs. Part number 39301 is built for the specified Mazda fitments and the Four Seasons Expansion Valve product line.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Mazda | CX-7 | — | — | N/A | Expansion Valve |
| 2011 | Mazda | CX-7 | — | — | N/A | Expansion Valve |
| 2010 | Mazda | CX-7 | — | — | N/A | Expansion Valve |
| 2009 | Mazda | CX-7 | — | — | N/A | Expansion Valve |
| 2008 | Mazda | CX-7 | — | — | N/A | Expansion Valve |
| 2007 | Mazda | 6 | 2.3L | L4 | N/A | Expansion Valve |
| 2007 | Mazda | CX-7 | — | — | N/A | Expansion Valve |
| 2006 | Mazda | 6 | 2.3L | L4 | N/A | Expansion Valve |
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