Four Seasons 39692 A/C Expansion Valve - Front

Four Seasons 39692 Expansion Valve

Four Seasons 39692 is a block-type A/C expansion valve built for R134A systems and engineered with an aluminum body for reliable refrigerant control. It is a direct-fit HVAC flow restrictor for select Lexus and Toyota applications, including Lexus GX550, NX250, NX350, RX350, TX-series models, and Toyota Highlander, Sienna, Tacoma, Tundra, and more.

The Four Seasons Expansion Valve line focuses on OE-style service parts for mobile air conditioning systems. This 39692 valve is a no-solenoid design with O-ring inlet and outlet connections, and it meets or exceeds OEM requirements for the listed applications.

Key Features

• Part number: 39692
• Block-type A/C expansion valve
• Aluminum construction
• R134A refrigerant type
• No-solenoid design
• Liquid inlet: No. 8 O-ring
• Liquid outlet: No. 6 O-ring
• Suction inlet: No. 10 O-ring
• Suction outlet: No. 10 O-ring
• Meets or exceeds OEM specifications
• Super heat: -10.000
• Tonnage: 1.000

Detailed Description

Four Seasons 39692 is an A/C expansion valve used to regulate refrigerant flow through the evaporator circuit in compatible Lexus and Toyota HVAC systems. Its block-style layout, aluminum housing, and O-ring connections support proper sealing and consistent refrigerant metering in R134A-equipped vehicles. This part cross-references Nissens 9991055 for the same application.

Compatible vehicle coverage includes Fits 2024-2025 Lexus GX550, Front; Fits 2022-2025 Lexus NX250, N/A; Fits 2022-2025 Lexus NX350, N/A; Fits 2024-2025 Lexus RX350, N/A; Fits 2023-2025 Lexus RX350h, N/A; Fits 2023-2025 Lexus RX500h, N/A; Fits 2024-2025 Lexus TX350, Front; Fits 2024-2025 Lexus TX500h, Front; Fits 2024-2025 Lexus TX550h+, Front; Fits 2025 Toyota Camry, N/A; Fits 2024-2025 Toyota Corolla Cross, N/A; Fits 2022 Toyota Corolla Cross, N/A; Fits 2024-2025 Toyota Grand Highlander, Front; Fits 2020-2025 Toyota Highlander, Front; Fits 2024-2025 Toyota Land Cruiser, Front; Fits 2023-2025 Toyota Sequoia, Front; Fits 2021-2025 Toyota Sienna, Front; Fits 2024-2025 Toyota Tacoma, N/A; Fits 2022-2025 Toyota Tundra, N/A; and Fits 2023 Lexus RX350, N/A, Except Japan Built.

Common Issues This Part May Address

• Weak or inconsistent cabin cooling
• Incorrect refrigerant metering at the evaporator
• Temperature swings during A/C operation
• Restricted refrigerant flow in the HVAC circuit
• Leak concerns at worn O-ring connection points

Installation Notes and Tips

Verify the vehicle’s refrigerant system uses R134A before ordering. Match the inlet and outlet sizes, O-ring styles, and block-type configuration to the original part. Replace seals as needed during service, and evacuate and recharge the system according to factory procedures after installation. Mounting hardware is not included.

Quality Assurance

Four Seasons states that its mobile A/C parts are engineered and tested for long service life, drawing on more than 50 years of HVAC experience. Part 39692 is built to meet or exceed OEM requirements for the listed Lexus and Toyota applications.