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Four Seasons 39684 A/C Expansion Valve
| Brand | Four Seasons 39684 |
|---|---|
| Material | Aluminum |
| Refrigerant Type | R134a |
| Type | Block type |
| Mounting Hardware Included | Yes |
| Description | Expansion valves |
| Liquid Inlet Size | No. 6 |
| Liquid Inlet Style | Sealing washer |
| Liquid Outlet Size | No. 8 |
| Liquid Outlet Style | Sealing washer |
| Meets / Exceeds OEM? | Yes |
| Style | W/o solenoid |
| Suction Inlet Size | No. 10 |
| Suction Inlet Style | Sealing washer |
| Suction Outlet Size | No. 12 |
| Suction Outlet Style | Sealing washer |
| Super Heat | -8.000 |
| Tonnage | 1 |
| Product line | Expansion Valve |
| Fits | Chevrolet · 3 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable service.
Aluminum construction. Resists corrosion for long-term A/C performance.
Block type design. Provides precise refrigerant flow control in the system.
Cross-references Four Seasons 39684, Global Parts Distributors LLC 3412017 and UAC EX10642C for the same application. See all 5.
Four Seasons 39684 Expansion Valve for Chevrolet Volt
The Four Seasons 39684 A/C expansion valve is a block-type HVAC flow restrictor built for R134A systems. It is engineered with an aluminum body and sealing-washer connections to support stable refrigerant metering in the air conditioning circuit.
Compatible with 2017-2019 Chevrolet Volt expansion valve applications, this part is a direct-fit service option for vehicles needing OE-style refrigerant control. Four Seasons backs the 39684 with more than 50 years of mobile A/C experience and product testing focused on long-term operation.
Key Features
- Block-type A/C expansion valve for R134A refrigerant systems
- Aluminum construction for HVAC service durability
- Sealing-washer inlet and outlet connections
- Mounting hardware included
- Meets or exceeds OEM requirements
- Style: w/o solenoid
- Super heat setting: -8.000
- Tonnage: 1
Product Details
The Four Seasons Expansion Valve line is focused on OE-style HVAC service parts for mobile air conditioning repairs. Part number 39684 is designed for the Chevrolet Volt platform and cross-references UAC EX10642C and Global Parts Distributors LLC 3412017 for the same application. If you are servicing a 2017, 2018, or 2019 Chevrolet Volt, this expansion valve helps restore proper refrigerant flow control at the evaporator circuit.
Common Problems This Part Can Address
- Incorrect refrigerant metering through the A/C system
- Weak or inconsistent cabin cooling
- Expansion valve restriction or internal wear
- HVAC performance issues tied to refrigerant flow imbalance
- Service replacement for a failed Chevrolet Volt expansion valve
Installation Notes and Tips
Verify the vehicle uses an R134A system before installation. Confirm the block-type valve layout, sealing-washer port style, and line sizes: No. 6 liquid inlet, No. 8 liquid outlet, No. 10 suction inlet, and No. 12 suction outlet. Replace sealing washers as needed and evacuate and recharge the system according to factory service procedures after installation.
Quality Assurance
Four Seasons engineers and tests its HVAC components for dependable operation, drawing on more than 50 years of mobile A/C experience. Part number 39684 is built to meet or exceed OEM specifications for the 2017-2019 Chevrolet Volt.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019 | Chevrolet | Volt | N/A | Expansion Valve |
| 2018 | Chevrolet | Volt | N/A | Expansion Valve |
| 2017 | Chevrolet | Volt | N/A | Expansion Valve |
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