Four Seasons 39654 A/C Expansion Valve

Four Seasons 39654 Expansion Valve Overview

The Four Seasons 39654 expansion valve is a block-type A/C flow restrictor built for R134A systems and engineered in aluminum for consistent refrigerant control. It is a direct-fit HVAC service part for 2016-2017 BMW 330e applications and meets or exceeds OEM requirements.

Four Seasons Expansion Valve 39654 is specified for BMW 330e A/C service where precise refrigerant metering is needed to maintain proper evaporator performance. This block-style valve uses female O-ring connections and a no-solenoid design for a straightforward replacement in the factory HVAC layout.

Key Features

• Brand: Four Seasons Expansion Valve
• Part number: 39654
• Block-type A/C expansion valve
• Aluminum construction and aluminum finish
• Designed for R134A refrigerant systems
• Female O-ring inlet and outlet connections
• No-solenoid style
• Two mounting holes
• Meets or exceeds OEM specifications
• Super heat setting: 0.500
• Tonnage: 1.5

Product Details

This Four Seasons 39654 expansion valve regulates refrigerant flow into the evaporator so the HVAC system can maintain stable cooling performance. The valve is configured with No. 10 suction inlet, No. 12 suction outlet, and No. 8 liquid inlet and outlet thread diameters, all using O-ring style female fittings for factory-style serviceability. For BMW 330e owners searching for a 2016-2017 BMW 330e expansion valve or a Four Seasons 39654 A/C expansion valve, this part matches the listed application and supports OE-level replacement needs.

This part cross-references 759875 and 64119396223 for the same application.

Common Problems This Part Can Address

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• A/C performance issues caused by a worn or restricted expansion valve
• Temperature fluctuations during compressor operation
• HVAC service needs on a BMW 330e with R134A refrigerant

Installation Notes and Tips

Verify refrigerant type, fitting style, and thread sizes before installation. Replace damaged O-rings and inspect the surrounding A/C components for contamination or restriction before reassembly. After installation, evacuate and recharge the system according to factory service procedures for the 2016-2017 BMW 330e.

Quality Assurance

Four Seasons lists this expansion valve as meeting or exceeding OEM specifications, making it a suitable OE-style replacement for the confirmed BMW 330e applications. Part number 39654 is built for consistent HVAC service in R134A systems.