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Four Seasons 39502 A/C Expansion Valve
| Brand | Four Seasons 39502 |
|---|---|
| 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 | 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 | 0.700 |
| Suc Out Size MM | 17.7 |
| 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. 12 |
| Suction Outlet Style | Sealing Washer |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | Sealing Washer |
| Super Heat | -3.4 |
| Switch Included? | Not Included |
| Tonnage | 1.5 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Chevrolet and Buick · 6 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable system service.
Block-type design. Compact expansion valve configuration for efficient refrigerant control.
Aluminum construction. Lightweight material with sealing-washer connections for a secure fit.
Cross-references Dynomax 39502, Global Parts Distributors LLC 3411488 and UAC EX10405C for the same application. See all 11.
Four Seasons 39502 A/C Expansion Valve
Four Seasons 39502 is a block-type A/C expansion valve for R134A systems. Built from aluminum and engineered to meet or exceed OEM requirements, it regulates refrigerant flow to help maintain proper evaporator performance in select Chevrolet Malibu, Malibu Limited, and Buick LaCrosse applications.
Key Features
- Brand: Four Seasons Expansion Valve line
- Part number: 39502
- Block-type A/C expansion valve for R134A refrigerant
- Aluminum construction with aluminum finish
- Female suction and liquid connections with sealing washer style
- Meets or exceeds OEM specifications
- Style: without solenoid
- Super heat setting: -3.4
- Tonnage: 1.5
Product Details
The Four Seasons Expansion Valve line focuses on precise refrigerant metering for automotive HVAC systems. This 39502 valve uses a block-style design with female inlet and outlet fittings, including No. 10 and No. 12 suction connections and No. 6 and No. 8 liquid connections. It is specified for R134A systems and is listed for 2013-2015 Chevrolet Malibu, 2016 Chevrolet Malibu Limited, and 2013-2014 Buick LaCrosse with PZEV spec. If you are replacing a worn A/C expansion valve on a Chevrolet Malibu or Buick LaCrosse, part number 39502 provides the correct fitment details for those applications.
This part cross-references UAC EX10405C for the same application.
What It Helps Address
- Inconsistent cabin cooling caused by improper refrigerant metering
- Evaporator performance issues related to a restricted or sticking valve
- A/C system pressure imbalance in R134A-equipped vehicles
- Reduced cooling output in 2013-2015 Chevrolet Malibu and 2016 Malibu Limited models
- HVAC service needs on 2013-2014 Buick LaCrosse with PZEV spec
Installation Notes and Tips
- Verify the vehicle uses an R134A system before installation.
- Confirm the suction and liquid fitting sizes match the original valve.
- Inspect sealing washer surfaces and replace damaged seals during service.
- Check the HVAC system for contamination, leaks, and proper evacuation before recharging.
- Use the exact fitment listing for 2013-2015 Chevrolet Malibu, 2016 Chevrolet Malibu Limited, and 2013-2014 Buick LaCrosse, PZEV spec.
Quality Assurance
Four Seasons 39502 is manufactured to meet or exceed OEM specifications for the listed applications. The aluminum block-type design and OE-style connection layout support accurate replacement service in compatible Chevrolet Malibu and Buick LaCrosse HVAC systems.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2016 | Chevrolet | Malibu Limited | — | — | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Expansion Valve |
| 2015 | Chevrolet | Malibu | — | — | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Expansion Valve |
| 2014 | Buick | LaCrosse | 3.6L | V6 | N/A | w/ PZEV Spec.; Expansion Valve |
| 2014 | Chevrolet | Malibu | — | — | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Expansion Valve |
| 2013 | Buick | LaCrosse | 3.6L | V6 | N/A | w/ PZEV Spec.; Expansion Valve |
| 2013 | Chevrolet | Malibu | — | — | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Expansion Valve |
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