HomeHVAC > A/C Flow RestrictorsFour Seasons 39655 A/C Expansion Valve
Part #: 39655

Four Seasons 39655 A/C Expansion Valve

Expansion Valve
10 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Expansion Valve
Fitment: Nissan, Titan and Titan XD
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Overview of Four Seasons Expansion Valve 39655

The Four Seasons Expansion Valve 39655 is designed specifically for Nissan TITAN and TITAN XD models. This A/C expansion valve regulates refrigerant flow in the air conditioning system, ensuring optimal cooling performance with R134a refrigerant.

  • Constructed from durable aluminum material
  • Block type design with two mounting holes for secure installation
  • Compatible with R134a refrigerant systems
  • Female fitting threads: suction inlet No. 10, suction outlet No. 12, liquid inlet No. 6, liquid outlet No. 8
  • O-ring style fittings for suction and liquid inlet/outlet connections
  • Meets or exceeds OEM specifications
  • Designed without a solenoid and does not include a switch
  • Super heat rating of -1.500 and 1.000 tonnage capacity

Four Seasons Expansion Valve Product Line Details

The Four Seasons Expansion Valve product line focuses on reliable A/C flow restrictors engineered to meet OEM standards. The Expansion Valve 39655 is part of this line, offering precise refrigerant metering and compatibility with specific vehicle models such as the Nissan TITAN and TITAN XD. This ensures consistent air conditioning system performance and durability.

Technical Description and Features

This A/C expansion valve is made from aluminum, providing corrosion resistance and long service life. Its block type design includes two mounting holes for stable attachment within the HVAC system. The valve features female fittings with O-ring seals on both suction and liquid inlet/outlet ports, ensuring leak-free connections. Thread diameters are specified as No. 10 and No. 12 for suction fittings, and No. 6 and No. 8 for liquid fittings, matching OEM requirements. The valve is designed for use with R134a refrigerant and operates without a solenoid or switch, simplifying installation and maintenance.

Common Applications and Issues Addressed

  • Regulates refrigerant flow in Nissan TITAN and TITAN XD A/C systems
  • Prevents inconsistent cooling or fluctuating cabin temperatures
  • Addresses issues related to refrigerant overfeeding or underfeeding
  • Helps resolve A/C system inefficiencies caused by faulty expansion valves
  • Supports proper super heat control for system protection

Installation Notes and Tips

  • Ensure compatibility with Nissan TITAN or TITAN XD models before installation
  • Use proper tools to avoid damaging O-ring seals during fitting
  • Check refrigerant type (R134a) and system pressure before replacement
  • Follow manufacturer torque specifications for mounting bolts
  • Inspect surrounding HVAC components for wear or leaks during installation

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39655 meets or exceeds OEM standards for fit, form, and function. Manufactured with precision aluminum and designed for R134a refrigerant systems, this valve provides reliable performance. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number39655
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. 8
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. 12
Suction Outlet StyleO-Ring
Super Heat-1.500
Switch Included?Not Included
Tonnage1.000
TypeBlock Type

This part fits 10 vehicles. Search below:

YearMakeModelPositionNotes
2024NissanTITAN XDN/AExpansion Valve
2023NissanTITAN XDN/AExpansion Valve
2022NissanTITANN/ATo 12/2021; Expansion Valve
2022NissanTITAN XDN/AExpansion Valve
2021NissanTITANN/AExpansion Valve
2021NissanTITAN XDN/AExpansion Valve
2020NissanTITANN/AExpansion Valve
2020NissanTITAN XDN/AExpansion Valve
2019NissanTITANN/AExpansion Valve
2019NissanTITAN XDN/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:

39655759876922009FU0AA99539EX10712C

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