Four Seasons 39648 A/C Expansion Valve

Four Seasons 39648 Expansion Valve for Porsche Macan

Four Seasons 39648 is a block-type A/C expansion valve for R134A systems. It is built from aluminum and uses female O-ring connections for the suction and liquid lines, making it a direct-fit HVAC flow restrictor for select Porsche Macan applications.

For Porsche Macan owners servicing the air conditioning system, this Four Seasons Expansion Valve line focuses on OE-style replacement fitment and refrigerant control. Part number 39648 is listed for 2015-2018 Porsche Macan and 2019-2025 Porsche Macan with R134a.

Key Features

• Four Seasons Expansion Valve, part number 39648
• Block-type A/C expansion valve for HVAC flow control
• Aluminum construction
• R134A refrigerant type
• Female O-ring suction and liquid fittings
• No. 12 suction inlet and outlet thread diameter
• No. 8 liquid inlet and outlet thread diameter
• 2 mounting holes
• Style without solenoid
• Meets or exceeds OEM requirements
• Super heat rating: -9.0
• Fits Porsche Macan models with R134a

Product Details

The Four Seasons 39648 expansion valve regulates refrigerant flow into the evaporator to help maintain proper A/C system performance. This block-type valve is specified with O-ring inlet and outlet styles on both the suction and liquid sides, along with female fittings for a clean service replacement. It is a direct replacement choice for Porsche Macan HVAC repairs where the original expansion valve has failed or the system is being restored after compressor or evaporator service.

This part cross-references 95B898031 and A99531 for the same application. The Four Seasons Expansion Valve product line is used for replacement HVAC components that match OE-style system requirements, and part number 39648 is listed for Porsche Macan model years 2015-2025 with R134a.

Common Problems This Part Can Address

• Inconsistent cabin cooling in a Porsche Macan
• Restricted refrigerant metering at the evaporator
• A/C system performance loss after HVAC service
• Improper suction or liquid line flow control
• Expansion valve failure in R134a-equipped systems

Installation Notes

• Verify the vehicle uses R134a before installation.
• Confirm the valve style, mounting hole layout, and fitting thread sizes match the original unit.
• Replace O-rings as needed during A/C service and evacuate the system before recharging.
• Check for contamination or debris in the system if the original valve failed from internal blockage.
• Fits 2015-2018 Porsche Macan, N/A.
• Fits 2019-2025 Porsche Macan, N/A, w/ R134a; Expansion Valve.

Quality Assurance

Four Seasons 39648 is listed as meeting or exceeding OEM requirements for the specified application. It is built as an OE-style replacement expansion valve for service work on compatible Porsche Macan HVAC systems.