Four Seasons 39537 A/C Expansion Valve - Rear
OE Quality 60-Day Returns
Four Seasons
 Expansion Valve

Four Seasons 39537 A/C Expansion Valve - Rear

Brand Four Seasons 39537
Position Rear
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 -12
Switch Included? Not Included
Tonnage 1
Type Block Type
Product line Expansion Valve
Fits Ford · 59 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable service.

Aluminum block type. Lightweight construction with sealing-washer connections.

R134A compatible. Built for modern A/C flow control.

Cross-references Carlson 16108, Four Seasons 39537 and Global Parts Distributors LLC 3411940 for the same application. See all 12.

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Four Seasons 39537 Expansion Valve for Rear HVAC Service

Four Seasons 39537 is a block-type A/C expansion valve for rear HVAC systems that use R134A refrigerant. Built from aluminum and engineered to meet or exceed OEM requirements, it regulates refrigerant flow for Ford Transit rear air conditioning service.

Key Features

  • Brand: Four Seasons Expansion Valve
  • Part number: 39537
  • Block-type A/C expansion valve
  • Aluminum construction and aluminum finish
  • R134A refrigerant type
  • Rear HVAC application
  • Female suction and liquid fittings with sealing washer style connections
  • 2 mounting holes
  • Style: w/o solenoid
  • Meets or exceeds OEM specifications
  • 1 tonnage rating

Product Details

This Four Seasons expansion valve meters refrigerant into the evaporator to maintain proper system balance in rear climate control setups. It uses female suction inlet and outlet fittings with No. 10 and No. 12 thread diameters, plus female liquid inlet and outlet fittings with No. 6 and No. 8 thread diameters. The sealing washer connection style supports a secure interface in R134A systems, and the block-type design is suited for Ford Transit rear HVAC layouts. Cross-reference part numbers include UAC EX10716C and Carlson 16108 for the same application.

Vehicle Fitment

  • Fits 2015-2025 Ford Transit-150, rear.
  • Fits 2015-2025 Ford Transit-250, rear.
  • Fits 2015-2025 Ford Transit-350, rear.
  • Fits 2015-2025 Ford Transit-350 HD, rear.
  • Fits 2022-2024 Ford E-Transit, rear.
  • Fits 2015-2020 Ford Transit, rear.
  • Fits 2015-2020 Ford Transit Custom, rear.

Common Repair Symptoms

  • Rear A/C vents blowing warm air
  • Erratic evaporator temperature control
  • Restricted refrigerant flow through the HVAC circuit
  • Uneven cooling performance in the rear cabin
  • System performance issues after expansion valve wear or contamination

Installation Notes

Verify the refrigerant type, fitting sizes, and rear HVAC configuration before installation. Inspect sealing washer surfaces, line condition, and mounting points during service, and evacuate and recharge the system according to the vehicle service procedure after replacement. Confirm the valve orientation and connection style match the original rear expansion valve on the Ford Transit or Ford E-Transit application.

Quality Assurance

Four Seasons lists this expansion valve as meeting or exceeding OEM specifications for the listed rear Ford Transit applications. Part number 39537 is built for direct replacement service in R134A-equipped HVAC systems.

Related reading

This part fits 59 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2025FordTransit-150RearExpansion Valve
2025FordTransit-250RearExpansion Valve
2025FordTransit-350RearExpansion Valve
2025FordTransit-350 HDRearExpansion Valve
2024FordE-TransitRearExpansion Valve
2024FordTransit-150RearExpansion Valve
2024FordTransit-250RearExpansion Valve
2024FordTransit-350RearExpansion Valve
2024FordTransit-350 HDRearExpansion Valve
2023FordE-TransitRearExpansion Valve
2023FordTransit-150RearExpansion Valve
2023FordTransit-250RearExpansion Valve
2023FordTransit-350RearExpansion Valve
2023FordTransit-350 HDRearExpansion Valve
2022FordE-TransitRearExpansion Valve
2022FordTransit-150RearExpansion Valve
2022FordTransit-250RearExpansion Valve
2022FordTransit-350RearExpansion Valve
2022FordTransit-350 HDRearExpansion Valve
2021FordTransit-150RearExpansion Valve
2021FordTransit-250RearExpansion Valve
2021FordTransit-350RearExpansion Valve
2021FordTransit-350 HDRearExpansion Valve
2020FordTransitRearExpansion Valve
2020FordTransit CustomRearExpansion Valve
2020FordTransit-150RearExpansion Valve
2020FordTransit-250RearExpansion Valve
2020FordTransit-350RearExpansion Valve
2020FordTransit-350 HDRearExpansion Valve
2019FordTransitRearExpansion Valve
2019FordTransit CustomRearExpansion Valve
2019FordTransit-150RearExpansion Valve
2019FordTransit-250RearExpansion Valve
2019FordTransit-350RearExpansion Valve
2019FordTransit-350 HDRearExpansion Valve
2018FordTransitRearExpansion Valve
2018FordTransit CustomRearExpansion Valve
2018FordTransit-150RearExpansion Valve
2018FordTransit-250RearExpansion Valve
2018FordTransit-350RearExpansion Valve
2018FordTransit-350 HDRearExpansion Valve
2017FordTransitRearExpansion Valve
2017FordTransit CustomRearExpansion Valve
2017FordTransit-150RearExpansion Valve
2017FordTransit-250RearExpansion Valve
2017FordTransit-350RearExpansion Valve
2017FordTransit-350 HDRearExpansion Valve
2016FordTransitRearExpansion Valve
2016FordTransit CustomRearExpansion Valve
2016FordTransit-150RearExpansion Valve
2016FordTransit-250RearExpansion Valve
2016FordTransit-350RearExpansion Valve
2016FordTransit-350 HDRearExpansion Valve
2015FordTransitRearExpansion Valve
2015FordTransit CustomRearExpansion Valve
2015FordTransit-150RearExpansion Valve
2015FordTransit-250RearExpansion Valve
2015FordTransit-350RearExpansion Valve
2015FordTransit-350 HDRearExpansion Valve
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Carlson — 16108Four Seasons — 39537Global Parts Distributors LLC — 3411940UAC — EX10716C1803772175377597473131473A17537BK3Z19849AEX10716T39537