Four Seasons 39434 A/C Expansion Valve - Front
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Four Seasons
 Expansion Valve

Four Seasons 39434 A/C Expansion Valve - Front

Brand Four Seasons 39434
Position Front
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
O-Ring A Number/Desc [24401] / Slim Line Sealing Washer
O-Ring B Number/Desc [24402] / Slimline Washer
O-Ring C Number/Desc [24403] / Slimline Washer
O-Ring D Number/Desc [24404] / Slimline Washer
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 8.500
Switch Included? Not Included
Tonnage 1.500
Type Block Type
Product line Expansion Valve
Fits Ram, Dodge, and Jeep · 59 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable A/C performance.

Aluminum construction. Lightweight material helps resist corrosion in the system.

Block type design. Built for precise refrigerant flow control without a solenoid.

Cross-references Four Seasons 39434, Global Parts Distributors LLC 3411541 and UAC EX9746C for the same application. See all 13.

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Four Seasons 39434 Expansion Valve

The Four Seasons 39434 expansion valve is a block-type A/C flow restrictor built for R134A systems. It is an aluminum, OE-style replacement that meets or exceeds OEM requirements and is used on select Ram ProMaster, Dodge Journey, and Jeep Wrangler applications.

Key Features

  • Brand: Four Seasons Expansion Valve
  • Part number: 39434
  • Block type design for R134A air conditioning systems
  • Aluminum construction with aluminum finish
  • Mounting hole quantity: 2
  • Female suction and liquid fittings with sealing washer connections
  • Super heat setting: 8.5
  • Style: w/o solenoid
  • Meets or exceeds OEM specifications
  • Cross-reference: Global Parts Distributors LLC 3411541

Product Details

Four Seasons 39434 is an A/C expansion valve designed to regulate refrigerant flow in the HVAC system and maintain proper evaporator performance. This block-type valve uses female inlet and outlet connections with sealing washer interfaces, including No. 10 and No. 12 suction thread diameters and No. 6 and No. 8 liquid thread diameters. It is specified for R134A refrigerant systems and is listed for 1.5 tonnage applications. Vehicle coverage includes 2014-2025 Ram ProMaster 1500, 2014-2025 Ram ProMaster 2500, 2014-2025 Ram ProMaster 3500, 2018-2020 Ram ProMaster City, 2018-2020 Ram ProMaster Rapid, 2012-2016 Dodge Journey front, 2017-2018 Dodge Journey front, 2012-2016 Jeep Wrangler, and 2017 Jeep Wrangler. If you are searching for a Ram ProMaster 1500 expansion valve or a Jeep Wrangler R134A expansion valve, Four Seasons 39434 is the direct part number to reference.

What It Helps Address

  • Inconsistent cabin cooling from improper refrigerant metering
  • Warm air from the vents caused by a restricted or worn expansion valve
  • Erratic evaporator performance in R134A HVAC systems
  • A/C pressure control issues related to valve wear or blockage
  • Service replacement needs on Ram ProMaster, Dodge Journey, and Jeep Wrangler models

Installation Notes and Tips

Verify the vehicle’s refrigerant type, fitting style, and valve configuration before installation. This part uses sealing washer connections and does not include a solenoid. Confirm the mounting pattern, inlet and outlet sizes, and system layout against the original component before service. For best results, inspect the A/C system for contamination, leaks, and related wear before replacing the valve.

Quality Assurance

Four Seasons 39434 is built to meet or exceed OEM requirements for the listed applications. The Four Seasons expansion valve line is used for direct-fit HVAC service parts, and this part number is referenced across multiple aftermarket catalogs for the same application.

Related reading

This part fits 59 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2025RamProMaster 1500——N/AExpansion Valve
2025RamProMaster 2500——N/AExpansion Valve
2025RamProMaster 3500——N/AExpansion Valve
2024RamProMaster 1500——N/AExpansion Valve
2024RamProMaster 2500——N/AExpansion Valve
2024RamProMaster 3500——N/AExpansion Valve
2023RamProMaster 1500——N/AExpansion Valve
2023RamProMaster 2500——N/AExpansion Valve
2023RamProMaster 3500——N/AExpansion Valve
2022RamProMaster 1500——N/AExpansion Valve
2022RamProMaster 2500——N/AExpansion Valve
2022RamProMaster 3500——N/AExpansion Valve
2021RamProMaster 1500——N/AExpansion Valve
2021RamProMaster 2500——N/AExpansion Valve
2021RamProMaster 3500——N/AExpansion Valve
2020RamProMaster 1500——N/AExpansion Valve
2020RamProMaster 2500——N/AExpansion Valve
2020RamProMaster 3500——N/AExpansion Valve
2020RamProMaster City——N/AExpansion Valve
2020RamProMaster Rapid——N/AExpansion Valve
2019RamProMaster 1500——N/AExpansion Valve
2019RamProMaster 2500——N/AExpansion Valve
2019RamProMaster 3500——N/AExpansion Valve
2019RamProMaster City——N/AExpansion Valve
2019RamProMaster Rapid——N/AExpansion Valve
2018DodgeJourney2.4LL4Frontw/ R134a; Expansion Valve
2018DodgeJourney3.6LV6Frontw/ R134a; Expansion Valve
2018RamProMaster 1500——N/AExpansion Valve
2018RamProMaster 25003.6LV6N/AExpansion Valve
2018RamProMaster 25003.0LL4N/AExpansion Valve
2018RamProMaster 35003.6LV6N/AExpansion Valve
2018RamProMaster 35003.0LL4N/AExpansion Valve
2018RamProMaster City——N/AExpansion Valve
2018RamProMaster Rapid——N/AExpansion Valve
2017DodgeJourney——Frontw/ R134a; Expansion Valve
2017JeepWrangler——N/Aw/ R134a; Expansion Valve
2017RamProMaster 1500——N/AExpansion Valve
2017RamProMaster 2500——N/AExpansion Valve
2017RamProMaster 3500——N/AExpansion Valve
2016DodgeJourney——FrontExpansion Valve
2016JeepWrangler——N/AExpansion Valve
2016RamProMaster 1500——N/AExpansion Valve
2016RamProMaster 2500——N/AExpansion Valve
2016RamProMaster 3500——N/AExpansion Valve
2015DodgeJourney——FrontExpansion Valve
2015JeepWrangler——N/AExpansion Valve
2015RamProMaster 1500——N/AExpansion Valve
2015RamProMaster 2500——N/AExpansion Valve
2015RamProMaster 3500——N/AExpansion Valve
2015RamProMaster City——N/AExpansion Valve
2014DodgeJourney——FrontExpansion Valve
2014JeepWrangler——N/AExpansion Valve
2014RamProMaster 1500——N/AExpansion Valve
2014RamProMaster 2500——N/AExpansion Valve
2014RamProMaster 3500——N/AExpansion Valve
2013DodgeJourney——FrontExpansion Valve
2013JeepWrangler——N/AExpansion Valve
2012DodgeJourney——FrontExpansion Valve
2012JeepWrangler——N/AExpansion Valve
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 39434Global Parts Distributors LLC — 3411541UAC — EX9746CUAC — EX9757C180323217434304375759434313130968153947AAA17434EX9757T39434