Four Seasons 39488 A/C Expansion Valve

Brand Four Seasons 39488
Material Aluminum
Color Aluminum
Refrigerant Type R134a
Type Block type
Mounting Hole Quantity 2
Suction Inlet Fitting Gender Female
Suction Outlet Fitting Gender Female
Suction Inlet Fitting Thread Diameter No. 10
Suction Outlet Fitting Thread Diameter No. 10
Suction Inlet Thread Type Not threaded
Suction Outlet Thread Type Not threaded
Liquid Inlet Fitting Gender Female
Liquid Outlet Fitting Gender Female
Liquid Inlet Fitting Thread Diameter No. 8
Liquid Outlet Fitting Thread Diameter No. 8
Liquid Inlet Thread Type Not threaded
Liquid Outlet Thread Type Not threaded
Description Expansion valves
Liquid Inlet Size IN 0.528
Liquid Inlet Size MM 13.4
Liquid Inlet Style O-ring
Liquid Inlet Type O-ring
Liquid Outlet Style O-ring
Liquid Outlet Type O-ring
Lqd Out Size IN 0.528
Lqd Out Size MM 13.4
Meets / Exceeds OEM? Yes
Style W/o solenoid
Suc In Size IN 0.638
Suc In Size MM 16.2
Fits —

OE direct replacement. Meets or exceeds OEM requirements for a confident fit.

Aluminum construction. Lightweight design with corrosion-resistant durability.

Block type design. Built for precise refrigerant flow control in the A/C system.

Cross-references Dorman - HELP 93280, Four Seasons 39488 and Global Parts Distributors LLC 1813012 for the same application. See all 21.

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Four Seasons 39488 Expansion Valve

Four Seasons 39488 is a block-type A/C expansion valve for R134A systems. Built from aluminum with O-ring inlet and outlet connections, it is specified for 2.0 ton applications and meets or exceeds OEM requirements for direct replacement service.

Key Features

  • Brand: Four Seasons Expansion Valve line
  • Part number: 39488
  • Block type A/C expansion valve, w/o solenoid
  • Aluminum construction and aluminum finish
  • Refrigerant type: R134A
  • 2 mounting holes for secure installation
  • Female suction and liquid fittings with O-ring sealing
  • Liquid inlet/outlet size: 0.528 in (13.4 mm)
  • Suction inlet/outlet size: 0.638 in (16.2 mm)
  • Meets or exceeds OEM specifications
  • Super heat setting: -1.000

Product Details

The Four Seasons Expansion Valve product line focuses on HVAC flow control components that regulate refrigerant delivery through the air conditioning system. Part number 39488 is a block-style A/C expansion valve with female No. 10 suction ports and female No. 8 liquid ports, using O-ring style connections for proper sealing in R134A systems. This configuration supports stable refrigerant metering in 2.0 ton applications and is a direct-fit service part for vehicles using this valve design. If you are searching for an A/C expansion valve for Honda Civic or similar HVAC service applications, Four Seasons 39488 is a relevant OE-style replacement reference.

This part cross-references Dorman - HELP 93280 for the same application.

Common Issues This Part Addresses

  • Weak or inconsistent cabin cooling from improper refrigerant metering
  • Compressor cycling caused by restricted A/C flow control
  • Uneven evaporator performance from a worn expansion valve
  • Refrigerant leakage at aging O-ring connections
  • HVAC performance loss in R134A air conditioning systems

Installation Notes and Tips

Verify the suction and liquid port sizes, O-ring style connections, and block-type layout before installation. Replace and lubricate sealing O-rings as required during A/C service, evacuate the system, and recharge with the correct refrigerant specification after repairs. Confirm the vehicle uses a 2.0 ton expansion valve application and matches the No. 10 suction and No. 8 liquid connection sizes.

Quality Assurance

Four Seasons 39488 is built to meet or exceed OEM requirements for HVAC service applications. The Four Seasons Expansion Valve line is used for replacement of factory-style A/C flow control components, including applications such as Honda Civic and other vehicles using the same valve configuration.

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 21 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 93280Four Seasons — 39488Global Parts Distributors LLC — 1813012OSC — 16901690G120806A759488932250313136934119033660855C13857948C13857948C23857948C3450656610002271471000227147BSM1000228585A17852EXV1092T39488