HomeHVAC > A/C Flow RestrictorsFour Seasons 39650 A/C Expansion Valve
Part #: 39650

Four Seasons 39650 A/C Expansion Valve

Expansion Valve
60 vehicles fit this part
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Expansion Valve
Fitment: Mercedes-Benz, AMG GT 43, AMG GT 53, AMG GT 63, AMG GT 63 S, C300, C350e, C43 AMG, C63 AMG, C63 AMG S, E200, E250, E300, E400, E43 AMG, E63 AMG S, G500, G550, G63 4x4 Squared AMG, G63 AMG, GLC250, GLC300, and GLC43 AMG
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Reliable A/C Expansion Valve for Mercedes-Benz Models

The Four Seasons Expansion Valve 39650 is engineered to regulate refrigerant flow in your vehicle's air conditioning system. Designed specifically for select Mercedes-Benz models, this aluminum block-type valve ensures efficient cooling performance with R134a refrigerant.

  • Constructed from durable aluminum for long-lasting use
  • 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 reliable performance
  • Designed without a solenoid for straightforward operation
  • Fits Mercedes-Benz AMG GT 43, C63 AMG, E63 AMG S, G63 AMG, and other models

About the Four Seasons Expansion Valve Product Line

The Four Seasons Expansion Valve line focuses on precision-engineered A/C flow restrictors that maintain optimal refrigerant flow and superheat levels. This product line is designed to meet or exceed OEM standards, providing consistent air conditioning performance across various vehicle applications. The 39650 valve is part of this line, offering a block-type design tailored for specific Mercedes-Benz vehicles.

Product Details and Specifications

This A/C expansion valve is made from aluminum, ensuring durability and resistance to corrosion. It is designed for use with R134a refrigerant and features a block-type construction. The valve includes two mounting holes for secure attachment. Both suction and liquid inlet/outlet fittings are female with sealing washer styles, thread diameters No. 12 for suction and No. 6 and No. 8 for liquid fittings. The valve operates without a solenoid and maintains a superheat of -10.0, supporting a 1.000 tonnage capacity. The Four Seasons 39650 expansion valve meets or exceeds OEM requirements, making it a reliable replacement part for your Mercedes-Benz vehicle.

Common Applications and Issues Addressed

  • Restores proper refrigerant flow in Mercedes-Benz AMG GT 53 and C43 AMG A/C systems
  • Resolves inconsistent cabin cooling in E43 AMG and G63 AMG models
  • Prevents compressor damage caused by improper superheat levels
  • Eliminates A/C system blockages and flow restrictions
  • Improves overall air conditioning efficiency in GLC43 AMG and C300 vehicles

Installation Notes and Tips

Ensure the vehicle’s A/C system is fully evacuated and free of contaminants before installing the expansion valve. Verify compatibility with your specific Mercedes-Benz model, such as the AMG GT 63 S or C350e. Use appropriate tools to avoid damaging the female fittings and sealing washers. Proper torque on mounting bolts and fittings is essential to prevent leaks. This valve does not include a solenoid or switch, so no additional electrical connections are required.

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39650 is manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details are not provided, Four Seasons products typically undergo rigorous quality control to maintain consistent functionality in automotive HVAC systems.

BrandFour Seasons
Part Number39650
PositionExpansion Valve
MaterialAluminum
Refrigerant TypeR134a
TypeBlock type
Mounting Hole Quantity2
Suction Inlet Fitting GenderFemale
Suction Outlet Fitting GenderFemale
Suction Inlet Fitting Thread DiameterNo. 12
Suction Outlet Fitting Thread DiameterNo. 12
Liquid Inlet Fitting GenderFemale
Liquid Outlet Fitting GenderFemale
Liquid Inlet Fitting Thread DiameterNo. 6
Liquid Outlet Fitting Thread DiameterNo. 8
DescriptionExpansion valves
Liquid Inlet StyleSealing washer
Liquid Outlet StyleSealing washer
Meets / Exceeds OEM?Yes
StyleW/o solenoid
Suction Inlet StyleSealing washer
Suction Outlet StyleSealing washer
Super Heat-10.0
Switch Included?Not included
Tonnage1.000

This part fits 60 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2025Mercedes-BenzAMG GT 43N/AExpansion Valve
2025Mercedes-BenzG550N/AExpansion Valve
2025Mercedes-BenzG63 AMGN/AExpansion Valve
2024Mercedes-BenzAMG GT 43N/AExpansion Valve
2024Mercedes-BenzAMG GT 53N/AExpansion Valve
2024Mercedes-BenzG550N/AExpansion Valve
2024Mercedes-BenzG63 4x4 Squared AMGN/AExpansion Valve
2024Mercedes-BenzG63 AMGN/AExpansion Valve
2023Mercedes-BenzAMG GT 43N/AExpansion Valve
2023Mercedes-BenzAMG GT 53N/AExpansion Valve
2023Mercedes-BenzAMG GT 63N/AExpansion Valve
2023Mercedes-BenzAMG GT 63 SN/AExpansion Valve
2023Mercedes-BenzG550N/AExpansion Valve
2023Mercedes-BenzG63 4x4 Squared AMGN/AExpansion Valve
2023Mercedes-BenzG63 AMGN/AExpansion Valve
2022Mercedes-BenzAMG GT 43N/AExpansion Valve
2022Mercedes-BenzAMG GT 53N/AExpansion Valve
2022Mercedes-BenzG550N/AExpansion Valve
2022Mercedes-BenzG63 4x4 Squared AMGN/AExpansion Valve
2022Mercedes-BenzG63 AMGN/AExpansion Valve
2021Mercedes-BenzAMG GT 43N/AExpansion Valve
2021Mercedes-BenzAMG GT 53N/AExpansion Valve
2021Mercedes-BenzAMG GT 63N/AExpansion Valve
2021Mercedes-BenzAMG GT 63 SN/AExpansion Valve
2021Mercedes-BenzG550N/AExpansion Valve
2021Mercedes-BenzG63 AMGN/AExpansion Valve
2020Mercedes-BenzG500N/AExpansion Valve
2020Mercedes-BenzG550N/AExpansion Valve
2020Mercedes-BenzG63 AMGN/AExpansion Valve
2019Mercedes-BenzG500N/AExpansion Valve
2019Mercedes-BenzG550N/AExpansion Valve
2019Mercedes-BenzG63 AMGN/AExpansion Valve
2018Mercedes-BenzC300N/AExpansion Valve
2018Mercedes-BenzC350eN/AExpansion Valve
2018Mercedes-BenzC43 AMGN/AExpansion Valve
2018Mercedes-BenzC63 AMGN/AExpansion Valve
2018Mercedes-BenzC63 AMG SN/AExpansion Valve
2018Mercedes-BenzE200N/AExpansion Valve
2018Mercedes-BenzE250N/AExpansion Valve
2018Mercedes-BenzE300N/AExpansion Valve
2018Mercedes-BenzE400N/AExpansion Valve
2018Mercedes-BenzE43 AMGN/AExpansion Valve
2018Mercedes-BenzE63 AMG SN/AExpansion Valve
2018Mercedes-BenzGLC300N/AExpansion Valve
2018Mercedes-BenzGLC43 AMGN/AExpansion Valve
2017Mercedes-BenzC300N/AExpansion Valve
2017Mercedes-BenzC350eN/AExpansion Valve
2017Mercedes-BenzC43 AMGN/AExpansion Valve
2017Mercedes-BenzC63 AMGN/AExpansion Valve
2017Mercedes-BenzC63 AMG SN/AExpansion Valve
2017Mercedes-BenzE200Sedan2.0LL4N/AExpansion Valve
2017Mercedes-BenzE250Sedan2.0LL4N/AExpansion Valve
2017Mercedes-BenzE300Sedan2.0LL4N/AExpansion Valve
2017Mercedes-BenzE400Sedan3.5LV6N/AExpansion Valve
2017Mercedes-BenzE400Sedan3.0LV6N/AExpansion Valve
2017Mercedes-BenzE400Wagon3.0LV6N/AExpansion Valve
2017Mercedes-BenzE43 AMGSedan3.0LV6N/AExpansion Valve
2017Mercedes-BenzGLC250N/AExpansion Valve
2017Mercedes-BenzGLC300N/AExpansion Valve
2017Mercedes-BenzGLC43 AMGN/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:

099830060039650759871EX10709C

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