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Four Seasons 39418 A/C Expansion Valve
| Brand | Four Seasons 39418 |
|---|---|
| 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. 10 |
| Liquid Outlet Style | Captured O-Ring |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | O-Ring |
| Lqd Out Size IN | 0.61 |
| Lqd Out Size MM | 15.5 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| O-Ring A Number/Desc | [24401] / Slim Line Sealing Washer |
| O-Ring B Number/Desc | [24661] / Green O-Ring |
| O-Ring C Number/Desc | [24681] / Green O-Ring |
| O-Ring D Number/Desc | [24404] / Slimline Washer |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.72 |
| Suc In Size MM | 18.3 |
| Suc Out Size IN | 0.700 |
| Suc Out Size MM | 17.7 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 12 |
| Suction Inlet Style | Captured 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 | -16.0 |
| Switch Included? | Not Included |
| Tonnage | 1.5 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Ram · 9 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable A/C service.
Block type design. Aluminum construction with sealing washer and O-ring connections.
R134A compatible. Built for modern refrigerant systems without a solenoid.
Cross-references Four Seasons 39418, Global Parts Distributors LLC 3411528 and 180347 for the same application. See all 9.
Four Seasons 39418 A/C Expansion Valve
Four Seasons 39418 is a block-type A/C expansion valve for R134A systems. It is built from aluminum and meets or exceeds OEM requirements for direct replacement service on select Ram trucks and chassis cab applications.
Key Features
- Block-type A/C expansion valve for refrigerant flow control
- Aluminum construction with aluminum finish
- Designed for R134A refrigerant systems
- Female suction and liquid connections with sealing washer and O-ring interfaces
- Mounting hole quantity: 2
- OE-style replacement that meets or exceeds OEM specifications
- Four Seasons expansion valve 39418 for service on select Ram HVAC systems
Product Details
This Four Seasons expansion valve 39418 regulates refrigerant flow into the evaporator to support proper A/C system operation. It uses a block-type design with female inlet and outlet connections, including No. 12 suction fittings and No. 6 / No. 10 liquid fittings, for the specified Ram applications. The part is listed without a solenoid and is configured for R134A air conditioning systems. Four Seasons 39418 also cross-references Global Parts Distributors LLC 3411528 for the same application.
Compatible vehicle coverage includes Fits 2013-2014 Ram 1500, N/A; Fits 2013-2014 Ram 2500, N/A; Fits 2013-2014 Ram 3500, N/A; and Fits 2012-2014 Ram 4000, N/A. If you are replacing a Ram 1500 A/C expansion valve, Ram 2500 HVAC flow restrictor, or Ram 3500 / Ram 4000 expansion valve, this part number is the direct reference to verify before ordering.
Common Repair Symptoms
- Weak or uneven cabin cooling
- Incorrect refrigerant metering at the evaporator
- A/C performance loss after system service
- Temperature fluctuations during compressor operation
- Restriction-related HVAC cooling complaints on Ram 1500, Ram 2500, Ram 3500, and Ram 4000 models
Installation Notes
Confirm the vehicle’s refrigerant type, connection style, and mounting layout before installation. Replace sealing surfaces as needed, verify the liquid and suction line orientation, and evacuate and recharge the system to the correct specification after service. Always match the part number 39418 to the exact application listed for your Ram model year.
Quality Assurance
Four Seasons 39418 is listed as meeting or exceeding OEM requirements for the specified applications, making it a direct-fit service part for select Ram HVAC repairs.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2014 | Ram | 1500 | N/A | Expansion Valve |
| 2014 | Ram | 2500 | N/A | Expansion Valve |
| 2014 | Ram | 3500 | N/A | Expansion Valve |
| 2014 | Ram | 4000 | N/A | Expansion Valve |
| 2013 | Ram | 1500 | N/A | Expansion Valve |
| 2013 | Ram | 2500 | N/A | Expansion Valve |
| 2013 | Ram | 3500 | N/A | Expansion Valve |
| 2013 | Ram | 4000 | N/A | Expansion Valve |
| 2012 | Ram | 4000 | N/A | Expansion Valve |
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