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Four Seasons 39549 A/C Expansion Valve
| Brand | Four Seasons 39549 |
|---|---|
| Color | Aluminum |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Size IN | 0.34 |
| Liquid Inlet Size MM | 8.6 |
| Liquid Inlet Style | Sealing Washer |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | Sealing Washer |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Liquid Outlet Style | Female Insert O-Ring |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | Sealing Washer |
| Lqd Out Size IN | 0.540 |
| Lqd Out Size MM | 13.6 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.650 |
| Suc In Size MM | 16.4 |
| Suc Out Size IN | 0.700 |
| Suc Out Size MM | 17.7 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | Female Insert O-Ring |
| Suction Inlet Thread Type | Not Threaded |
| Suction Inlet Type | O-Ring |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 12 |
| Suction Outlet Style | Sealing Washer |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | Sealing Washer |
| Super Heat | -12 |
| Switch Included? | Not Included |
| Tonnage | 1.5 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Volkswagen · 26 vehicles |
OE-spec replacement. Meets or exceeds OEM requirements for dependable system control.
Aluminum construction. Lightweight material helps resist corrosion in the A/C system.
Block type design. Built as an expansion valve for precise refrigerant flow.
Cross-references Four Seasons 39549, Global Parts Distributors LLC 3411604 and 1K0820679E for the same application. See all 8.
Four Seasons 39549 Expansion Valve
Four Seasons 39549 is a block-type A/C expansion valve for R134A systems, built with an aluminum body and OE-style sealing interfaces. It is specified for 1.5 ton applications and meets or exceeds OEM requirements for the listed Volkswagen fitments.
Key Features
- Brand: Four Seasons Expansion Valve
- Part number: 39549
- Block type A/C expansion valve for R134A refrigerant
- Aluminum construction with aluminum finish
- Female suction and liquid connections with sealing washer and O-ring styles
- Mounting hole quantity: 2
- Style: w/o solenoid
- Super heat: -12
- Meets or exceeds OEM specifications
- Cross-reference: Global Parts Distributors LLC 3411604
Product Details
The Four Seasons Expansion Valve line focuses on precise refrigerant metering for automotive HVAC systems. This Four Seasons 39549 expansion valve regulates refrigerant flow into the evaporator, helping maintain stable cabin cooling performance in Volkswagen Passat, Volkswagen Jetta, Volkswagen Beetle, and Volkswagen CC applications listed below. The valve uses female inlet and outlet fittings with sealing washer and female insert O-ring styles, along with aluminum construction for serviceable OE-style replacement.
Fits 2018-2021 Volkswagen Passat, N/A; Fits 2019 Volkswagen Beetle, N/A; Fits 2016-2018 Volkswagen Beetle, N/A; Fits 2017-2018 Volkswagen Jetta, N/A; Fits 2016-2018 Volkswagen Passat, N/A; Fits 2017 Volkswagen CC, N/A; Fits 2016 Volkswagen Jetta, N/A; Fits 2015 Volkswagen Jetta, N/A from 6/29/2015.
What It Helps Address
- Inconsistent A/C outlet temperature caused by a worn expansion valve
- Refrigerant flow restriction issues in R134A HVAC systems
- Evaporator performance problems tied to incorrect metering
- Loss of cooling control in Volkswagen Passat, Jetta, Beetle, or CC HVAC systems
- Service replacement needs for block-type expansion valve applications
Installation Notes and Tips
Verify refrigerant type, fitting style, and mounting-hole layout before installation. This valve is for R134A systems and uses female suction and liquid connections with non-threaded sealing interfaces, so matching the original HVAC configuration is important. Confirm the vehicle build date on the 2015 Volkswagen Jetta application, which is listed from 6/29/2015.
Quality Assurance
Four Seasons 39549 is listed as meeting or exceeding OEM requirements for the specified applications. It is an OE-style HVAC replacement part designed for direct service use in the confirmed Volkswagen fitments.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2021 | Volkswagen | Passat | — | — | — | N/A | w/ R134a; Expansion Valve |
| 2020 | Volkswagen | Passat | — | — | — | N/A | w/ R134a; Expansion Valve |
| 2019 | Volkswagen | Beetle | — | — | — | N/A | w/ R134a; Expansion Valve |
| 2019 | Volkswagen | Passat | — | — | — | N/A | w/ R134a; Expansion Valve |
| 2018 | Volkswagen | Beetle | — | — | — | N/A | Expansion Valve |
| 2018 | Volkswagen | Jetta | — | 2.0L | L4 | N/A | w/ R134a; Expansion Valve |
| 2018 | Volkswagen | Jetta | — | 2.5L | L5 | N/A | w/ R134a; Expansion Valve |
| 2018 | Volkswagen | Jetta | — | 1.8L | L4 | N/A | w/ R134a; Expansion Valve |
| 2018 | Volkswagen | Jetta | — | 1.4L | L4 | N/A | w/ R134a; Expansion Valve |
| 2018 | Volkswagen | Passat | S | 2.0L | L4 | N/A | Expansion Valve |
| 2018 | Volkswagen | Passat | GT | 3.6L | V6 | N/A | Expansion Valve |
| 2018 | Volkswagen | Passat | SE | 2.0L | L4 | N/A | Expansion Valve |
| 2018 | Volkswagen | Passat | SEL Premium | 2.0L | L4 | N/A | w/ R134a; Expansion Valve |
| 2018 | Volkswagen | Passat | SEL Premium | 3.6L | V6 | N/A | w/ R134a; Expansion Valve |
| 2018 | Volkswagen | Passat | R-Line | 2.0L | L4 | N/A | Expansion Valve |
| 2017 | Volkswagen | Beetle | — | — | — | N/A | Expansion Valve |
| 2017 | Volkswagen | CC | — | — | — | N/A | Expansion Valve |
| 2017 | Volkswagen | Jetta | — | — | — | N/A | w/ R134a; Expansion Valve |
| 2017 | Volkswagen | Passat | — | 3.6L | V6 | N/A | Expansion Valve |
| 2017 | Volkswagen | Passat | — | 1.8L | L4 | N/A | Expansion Valve |
| 2016 | Volkswagen | Beetle | — | — | — | N/A | Expansion Valve |
| 2016 | Volkswagen | Jetta | — | — | — | N/A | Expansion Valve |
| 2016 | Volkswagen | Passat | — | 1.8L | L4 | N/A | Expansion Valve |
| 2015 | Volkswagen | Jetta | — | 2.0L | L4 | N/A | From 6/29/2015; Expansion Valve |
| 2015 | Volkswagen | Jetta | — | 1.8L | L4 | N/A | From 6/29/2015; Expansion Valve |
| 2015 | Volkswagen | Jetta | — | 1.4L | L4 | N/A | From 6/29/2015; Expansion Valve |
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