HomeHVAC > A/C Flow RestrictorsFour Seasons 39609 A/C Expansion Valve
Part #: 39609

Four Seasons 39609 A/C Expansion Valve

Expansion Valve
9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Expansion Valve
Fitment: Jeep, Gladiator, Wrangler, and Wrangler JK
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Reliable A/C Expansion Valve for Jeep Wrangler and Wrangler JK

The Four Seasons Expansion Valve 39609 is engineered to regulate refrigerant flow in your Jeep Wrangler and Wrangler JK's air conditioning system. Crafted from durable aluminum, this block-type valve is designed specifically for R134a refrigerant, ensuring efficient cooling performance.

  • Constructed from corrosion-resistant aluminum material
  • Compatible with R134a refrigerant systems
  • Block type design with two mounting holes for secure installation
  • Female suction and liquid inlet/outlet fittings with sealing washer style
  • Meets or exceeds OEM specifications for Jeep Wrangler and Wrangler JK

About the Four Seasons Expansion Valve Product Line

The Expansion Valve product line by Four Seasons focuses on precise refrigerant flow control within automotive HVAC systems. This line includes valves designed to maintain optimal pressure and temperature balance, contributing to consistent air conditioning performance. The 39609 valve fits within this line as a block-type valve without a solenoid, tailored for specific Jeep models using R134a refrigerant.

Detailed Product Description and Specifications

The Four Seasons 39609 expansion valve features a block-type design constructed from aluminum, providing durability and resistance to corrosion. It includes two mounting holes for secure attachment and is designed with female fittings on both suction and liquid inlet/outlet ports. The suction inlet and outlet fittings have thread diameters of No. 10 and No. 12 respectively, while the liquid inlet and outlet fittings measure No. 6 and No. 8. All fittings utilize a sealing washer style to ensure leak-free connections. This valve is compatible with R134a refrigerant systems and is engineered to meet or exceed OEM standards for Jeep Wrangler and Wrangler JK models.

Common Applications and Issues Addressed

  • Regulates refrigerant flow to maintain proper A/C system pressure
  • Prevents compressor damage caused by improper refrigerant metering
  • Helps resolve inconsistent cabin cooling or fluctuating temperatures
  • Addresses issues related to refrigerant leaks at the expansion valve fittings
  • Supports efficient operation of the Jeep Wrangler and Wrangler JK air conditioning system

Installation Notes and Tips

  • Ensure compatibility with Jeep Wrangler and Wrangler JK models before installation
  • Use proper tools to avoid damaging the aluminum fittings and sealing washers
  • Inspect and replace sealing washers to prevent refrigerant leaks
  • Follow manufacturer torque specifications for mounting bolts
  • Verify system is evacuated and recharged with R134a refrigerant after installation

Quality Assurance and Warranty Information

The Four Seasons Expansion Valve 39609 is manufactured to meet or exceed OEM quality standards, ensuring reliable performance in your Jeep Wrangler and Wrangler JK. This part undergoes rigorous testing for durability and fitment accuracy. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandFour Seasons
Part Number39609
PositionExpansion Valve
ColorAluminum
DescriptionExpansion Valves
Liquid Inlet Fitting GenderFemale
Liquid Inlet Fitting Thread DiameterNo. 6
Liquid Inlet Size IN0.34
Liquid Inlet Size MM8.6
Liquid Inlet StyleSealing Washer
Liquid Inlet Thread TypeNot Threaded
Liquid Inlet TypeSealing Washer
Liquid Outlet Fitting GenderFemale
Liquid Outlet Fitting Thread DiameterNo. 8
Liquid Outlet StyleSealing Washer
Liquid Outlet Thread TypeNot Threaded
Liquid Outlet TypeSealing Washer
Lqd Out Size IN0.46
Lqd Out Size MM11.8
MaterialAluminum
Meets / Exceeds OEM?Yes
Mounting Hole Quantity2
Refrigerant TypeR134A
Stylew/o Solenoid
Suc In Size IN0.63
Suc In Size MM16
Suc Out Size IN0.700
Suc Out Size MM17.7
Suction Inlet Fitting GenderFemale
Suction Inlet Fitting Thread DiameterNo. 10
Suction Inlet StyleSealing Washer
Suction Inlet Thread TypeNot Threaded
Suction Inlet TypeSealing Washer
Suction Outlet Fitting GenderFemale
Suction Outlet Fitting Thread DiameterNo. 12
Suction Outlet StyleSealing Washer
Suction Outlet Thread TypeNot Threaded
Suction Outlet TypeSealing Washer
Super Heat-5.500
Switch Included?Not Included
Tonnage1.5
TypeBlock Type

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2025JeepWrangler2.0LL4N/AExpansion Valve
2024JeepWrangler2.0LL4N/AExpansion Valve
2023JeepWranglerN/AExpansion Valve
2022JeepWranglerN/AExpansion Valve
2021JeepWranglerN/AExpansion Valve
2020JeepWranglerN/AExpansion Valve
2019JeepWranglerN/AExpansion Valve
2018JeepWranglerN/AExpansion Valve
2018JeepWrangler JKN/AExpansion Valve

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3960968301876AA759824A99486EX10704C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.