HomeHVAC > A/C Flow RestrictorsFour Seasons 39663 A/C Expansion Valve
Part #: 39663

Four Seasons 39663 A/C Expansion Valve

Expansion Valve
3 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$32.49Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Expansion Valve
Fitment: Hyundai, Santa Fe
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Expansion Valve 39663

The Four Seasons Expansion Valve 39663 is designed specifically for Hyundai Santa Fe models requiring precise A/C system regulation. This aluminum block-type valve ensures efficient refrigerant flow control compatible with R134a refrigerant systems.

  • Constructed from durable aluminum material
  • Compatible with R134a refrigerant
  • Block type design with two mounting holes for secure installation
  • Female fittings with O-ring seals on suction and liquid inlets/outlets
  • Meets or exceeds OEM specifications for reliable performance
  • Designed without a solenoid switch
  • Supports 1.5 tonnage A/C systems

Detailed Product Description

The Four Seasons Expansion Valve 39663 is engineered to regulate refrigerant flow in Hyundai Santa Fe air conditioning systems. Its block-type design features two mounting holes for stable attachment and female fittings on both suction and liquid lines, all sealed with O-rings to prevent leaks. The valve is compatible with R134a refrigerant, the standard for many modern vehicles, and supports a 1.5-ton A/C system capacity. The suction inlet and outlet fittings use No. 10 thread diameters, while the liquid inlet and outlet fittings use No. 6 and No. 10 respectively, ensuring proper fitment and sealing.

This expansion valve operates with a superheat value of -0.8 and does not include a solenoid switch, making it suitable for systems designed without electronic control valves. The aluminum construction provides corrosion resistance and durability under typical automotive operating conditions.

About the Four Seasons Expansion Valve Product Line

The Four Seasons Expansion Valve product line focuses on delivering reliable A/C flow restrictors that meet or exceed OEM standards. This line includes block-type valves like the 39663, designed for specific vehicle applications such as the Hyundai Santa Fe. These valves are engineered to maintain optimal refrigerant flow and system efficiency without the need for solenoid switches, catering to vehicles with traditional A/C system designs.

Common Applications and Issues Addressed

  • Regulates refrigerant flow to maintain proper cooling performance
  • Prevents A/C system freezing or overheating due to improper expansion
  • Replaces faulty or leaking expansion valves in Hyundai Santa Fe models
  • Helps restore consistent cabin temperature control
  • Addresses issues related to fluctuating or insufficient A/C output

Installation Notes and Tips

  • Ensure compatibility with Hyundai Santa Fe models before installation
  • Use proper tools to avoid damaging the aluminum valve body or fittings
  • Check and replace O-rings to maintain leak-free connections
  • Follow manufacturer torque specifications for mounting bolts
  • Evacuate and recharge the A/C system with R134a refrigerant after installation

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39663 meets or exceeds OEM quality standards, providing reliable performance for Hyundai Santa Fe air conditioning systems. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Always verify warranty terms with the product documentation or supplier.

BrandFour Seasons
Part Number39663
PositionExpansion Valve
DescriptionExpansion Valves
Liquid Inlet Fitting GenderFemale
Liquid Inlet Fitting Thread DiameterNo. 6
Liquid Inlet StyleO-Ring
Liquid Outlet Fitting GenderFemale
Liquid Outlet Fitting Thread DiameterNo. 10
Liquid Outlet StyleO-Ring
MaterialAluminum
Meets / Exceeds OEM?Yes
Mounting Hole Quantity2
Refrigerant TypeR134A
Stylew/o Solenoid
Suction Inlet Fitting GenderFemale
Suction Inlet Fitting Thread DiameterNo. 10
Suction Inlet StyleO-Ring
Suction Outlet Fitting GenderFemale
Suction Outlet Fitting Thread DiameterNo. 10
Suction Outlet StyleO-Ring
Super Heat-0.8
Switch Included?Not Included
Tonnage1.5
TypeBlock Type

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2009HyundaiSanta FeN/Aw/o Dual A/C; Expansion Valve
2008HyundaiSanta FeN/Aw/o Dual A/C; Expansion Valve
2007HyundaiSanta FeN/Aw/o Dual A/C; Expansion 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:

39663759884976042B000A99547EX10252C

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