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Four Seasons 39637 A/C Expansion Valve
| Brand | Four Seasons 39637 |
|---|---|
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Style | O-Ring |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Liquid Outlet Style | O-Ring |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | O-Ring |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 12 |
| Suction Outlet Style | O-Ring |
| Super Heat | 2.7 |
| Switch Included? | Not Included |
| Tonnage | 1.5 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Toyota · 5 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable A/C flow control.
Aluminum construction. Lightweight material helps resist corrosion in the HVAC system.
Block type design. O-ring fittings and no solenoid simplify installation and service.
Cross-references Four Seasons 39637, UAC EX10630C and 88515F4020 for the same application. See all 5.
Four Seasons 39637 Expansion Valve Overview
The Four Seasons 39637 A/C expansion valve is a block-type HVAC flow restrictor built for R134A systems. It meters refrigerant into the evaporator to help maintain stable cooling performance in the cabin.
Compatible with Toyota C-HR applications, this Four Seasons expansion valve is an OE-style replacement that meets or exceeds OEM requirements and uses aluminum construction with O-ring connections.
Key Features
- Brand: Four Seasons Expansion Valve
- Part number: 39637
- Block type A/C expansion valve
- Aluminum construction
- R134A refrigerant type
- O-ring inlet and outlet styles
- Female suction and liquid fittings
- 2 mounting holes
- Meets or exceeds OEM requirements
- 1.5 tonnage rating
- Super heat setting: 2.7
- Style: w/o solenoid
Product Details
The Four Seasons 39637 expansion valve regulates refrigerant flow between the liquid line and suction side of the A/C system, helping the evaporator receive the correct amount of refrigerant for consistent cooling. It is built for R134A systems and uses a block-style design with female O-ring fittings for the suction and liquid connections. This part cross-references UAC EX10630C for the same application.
Fits 2018 Toyota C-HR, N/A. Fits 2019-2021 Toyota C-HR, N/A, except Japan built vehicle. Fits 2022 Toyota C-HR, N/A, except Japan built.
Common Replacement Reasons
- Weak or inconsistent cabin cooling
- Incorrect refrigerant metering at the evaporator
- A/C performance issues tied to a worn expansion valve
- Refrigerant flow restriction problems in the HVAC system
- Leak concerns at the valve body or O-ring connections
Installation Notes
Verify the vehicle’s refrigerant system uses R134A before installation. Confirm the suction and liquid fitting sizes, mounting hole layout, and OE-style connection points match the original valve. Replace and lubricate O-rings as needed, then evacuate and recharge the system according to factory service procedures.
Quality Assurance
Four Seasons lists this expansion valve as meeting or exceeding OEM requirements for the specified application. The aluminum block design and OE-style fitment support direct replacement use on the listed Toyota C-HR models.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2022 | Toyota | C-HR | N/A | Except Japan Built; Expansion Valve |
| 2021 | Toyota | C-HR | N/A | Exc.Japan Built Vehicle; Expansion Valve |
| 2020 | Toyota | C-HR | N/A | Exc.Japan Built Vehicle; Expansion Valve |
| 2019 | Toyota | C-HR | N/A | Exc.Japan Built Vehicle; Expansion Valve |
| 2018 | Toyota | C-HR | N/A | Expansion Valve |
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