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Four Seasons 39901 A/C Expansion Valve
| Brand | Four Seasons 39901 |
|---|---|
| Material | Aluminum |
| Refrigerant Type | R134a |
| Type | Block type |
| Mounting Hole Quantity | 2 |
| Suction Inlet Fitting Gender | Female |
| Suction Outlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Outlet Fitting Thread Diameter | No. 12 |
| Liquid Inlet Fitting Gender | Female |
| Liquid Outlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Description | Expansion valves |
| Liquid Inlet Style | Sealing washer |
| Liquid Outlet Style | Sealing washer |
| Meets / Exceeds OEM? | Yes |
| Style | W/o solenoid |
| Suction Inlet Style | Sealing washer |
| Suction Outlet Style | Sealing washer |
| Super Heat | -4.0 |
| Switch Included? | Not included |
| Tonnage | 1.5 |
| Fits | — |
OE direct replacement. Meets or exceeds OEM requirements for dependable A/C service.
Aluminum construction. Lightweight material helps resist corrosion in the A/C system.
Block type design. Provides precise refrigerant flow control for efficient cooling.
Cross-references Four Seasons 39901, Remy 16101 and 164259 for the same application. See all 10.
Four Seasons 39901 Expansion Valve Overview
The Four Seasons 39901 A/C expansion valve is a block-type HVAC flow restrictor built for R134A systems. It uses an aluminum body with sealing-washer connections and is specified as an OE-style replacement for service work on vehicles such as Honda Civic and Toyota Corolla applications where precise refrigerant metering is required.
Four Seasons Expansion Valve line components are built for direct-fit HVAC service, with this 39901 valve matching the original-style block configuration and connection layout for R134A air conditioning systems.
Key Features
- Part number: 39901
- Block-type A/C expansion valve
- Aluminum construction
- R134A refrigerant type
- Female suction and liquid fittings with sealing washers
- No. 10 suction inlet, No. 12 suction outlet
- No. 6 liquid inlet, No. 8 liquid outlet
- 2 mounting holes
- Super heat setting: -4.0
- Style: w/o solenoid
- Meets or exceeds OEM requirements
Detailed Description
The Four Seasons 39901 expansion valve regulates refrigerant flow into the evaporator to maintain proper A/C system performance. Its block-type design, female threaded connections, and sealing-washer style fittings support a clean OE-style service replacement for R134A systems. This part number 39901 is built for 1.5 tonnage applications and is commonly searched as an A/C expansion valve for Honda Civic and Toyota Corolla HVAC repair needs.
This part cross-references Remy 16101 for the same application.
What It Helps Address
- Inconsistent cabin cooling from improper refrigerant metering
- Warm air from the vents when the evaporator is not being fed correctly
- Erratic A/C performance caused by a worn or restricted expansion valve
- System service needs after replacing other HVAC components
- Leak-prone or damaged original valve connections
Installation Notes and Tips
Verify the vehicle’s refrigerant type, fitting style, thread sizes, and mounting-hole layout before installation. This valve uses sealing-washer connections and does not include a switch. Always evacuate and recharge the A/C system according to the vehicle service procedure after replacement. For Honda Civic and Toyota Corolla HVAC repairs, confirm the original block-style valve configuration matches part number 39901.
Quality Assurance
Four Seasons lists this expansion valve as meeting or exceeding OEM requirements, making it a direct replacement option for professional A/C service. The Four Seasons 39901 is engineered for consistent refrigerant control in R134A systems.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| No rows match your filter. | ||||