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Four Seasons 39546 A/C Expansion Valve
| Brand | Four Seasons 39546 |
|---|---|
| Color | Aluminum |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Size IN | 0.28 |
| Liquid Inlet Size MM | 7.1 |
| Liquid Inlet Style | Captured O-Ring |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | O-Ring |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Liquid Outlet Style | Sealing Washer |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | Sealing Washer |
| Lqd Out Size IN | 0.46 |
| Lqd Out Size MM | 11.8 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.63 |
| Suc In Size MM | 16 |
| Suc Out Size IN | 0.63 |
| Suc Out Size MM | 16 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | Sealing Washer |
| Suction Inlet Thread Type | Not Threaded |
| Suction Inlet Type | Sealing Washer |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 10 |
| Suction Outlet Style | Captured O-Ring |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | O-Ring |
| Super Heat | -1.500 |
| Switch Included? | Not Included |
| Tonnage | 1 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Acura · 4 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable system service.
Aluminum construction. Lightweight material helps resist corrosion in A/C service.
Block type design. Provides precise refrigerant flow control for the expansion valve.
Cross-references Four Seasons 39546, Global Parts Distributors LLC 3411592 and UAC EX9764C for the same application. See all 12.
Four Seasons 39546 Expansion Valve
Four Seasons 39546 is a block-type A/C expansion valve for R134A systems, built with an aluminum body and OE-style fitment details. It is listed for 2014-2017 Acura MDX applications and meets or exceeds OEM requirements for the specified application.
The Four Seasons Expansion Valve line focuses on precise refrigerant metering for automotive HVAC systems. This part number, 39546, uses female suction and liquid connections with captured O-ring and sealing washer interfaces to match the original service layout on the vehicle.
Key Features
- Brand: Four Seasons Expansion Valve
- Part number: 39546
- Block-type A/C expansion valve
- Aluminum construction and aluminum finish
- Designed for R134A refrigerant systems
- Female suction inlet and outlet fittings
- Female liquid inlet and outlet fittings
- 2 mounting holes
- Style: w/o solenoid
- Meets or exceeds OEM requirements
Detailed Description
Four Seasons 39546 is an A/C expansion valve that regulates refrigerant flow into the evaporator to support proper HVAC operation. It features a 1-ton rating, a super heat setting of -1.500, and OE-style connection details including a No. 10 suction inlet and outlet, plus No. 6 liquid inlet and No. 8 liquid outlet. This makes it a direct-service replacement for the listed Acura MDX fitment, including 2014-2017 Acura MDX models. If you are searching for an Acura MDX expansion valve or Four Seasons 39546 for 2014-2017 Acura MDX service, this part matches the application data provided.
This part cross-references UAC EX9764C for the same application.
What It Helps Address
- Weak or inconsistent A/C cooling performance
- Improper refrigerant metering at the evaporator
- HVAC system pressure imbalance related to valve restriction
- Temperature control issues in the cabin A/C system
- Service replacement needs for the listed Acura MDX application
Installation Notes
Verify the vehicle’s refrigerant type, connection style, and mounting layout before installation. Confirm the suction and liquid fitting sizes match the original valve, and inspect sealing surfaces, O-rings, and washers during service. Proper evacuation and recharge procedures are required after A/C component replacement. For fitment reference, this part is listed for 2014-2017 Acura MDX, N/A position.
Quality Assurance
This Four Seasons expansion valve is listed as meeting or exceeding OEM requirements for the specified application. It is built for R134A systems and uses OE-style aluminum construction and connection geometry to support accurate replacement service.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2017 | Acura | MDX | N/A | Expansion Valve |
| 2016 | Acura | MDX | N/A | Expansion Valve |
| 2015 | Acura | MDX | N/A | Expansion Valve |
| 2014 | Acura | MDX | N/A | Expansion Valve |
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