Four Seasons 39563 A/C Expansion Valve - Front
OE Quality 60-Day Returns
Four Seasons
 Expansion Valve

Four Seasons 39563 A/C Expansion Valve - Front

Brand Four Seasons 39563
Position Front
Color Aluminum
Description Expansion Valves
Liquid Inlet Fitting Gender Female
Liquid Inlet Fitting Thread Diameter No. 6
Liquid Inlet Size IN 0.4
Liquid Inlet Size MM 10.15
Liquid Inlet Style Captured O-Ring
Liquid Inlet Thread Type Not Threaded
Liquid Inlet Type O-Ring
Liquid Outlet Fitting Gender Female
Liquid Outlet Fitting Thread Diameter No. 10
Liquid Outlet Style Captured O-Ring
Liquid Outlet Thread Type Not Threaded
Liquid Outlet Type O-Ring
Lqd Out Size IN 0.61
Lqd Out Size MM 15.5
Material Aluminum
Meets / Exceeds OEM? Yes
Mounting Hole Quantity 2
O-Ring A Number/Desc [23680] / Green O-Ring
O-Ring B Number/Desc [24611] / Green O-Ring
O-Ring C Number/Desc [24150] / Green O-Ring
Refrigerant Type R134A
Style w/o Solenoid
Suc In Size IN 0.72
Suc In Size MM 18.3
Suc Out Size IN 0.72
Suc Out Size MM 18.3
Suction Inlet Fitting Gender Female
Suction Inlet Fitting Thread Diameter No. 12
Suction Inlet Style Captured O-Ring
Suction Inlet Thread Type Not Threaded
Suction Inlet Type O-Ring
Suction Outlet Fitting Gender Female
Suction Outlet Fitting Thread Diameter No. 12
Suction Outlet Style Captured O-Ring
Suction Outlet Thread Type Not Threaded
Suction Outlet Type O-Ring
Super Heat -7.000
Switch Included? Not Included
Tonnage 1
Type Block Type
Product line Expansion Valve
Fits Lexus and Mazda · 39 vehicles

OE direct replacement. Meets or exceeds OEM requirements for confident installation.

Block type design. Aluminum construction with captured O-ring connections.

R134A compatible. Built for modern A/C refrigerant systems.

Cross-references Four Seasons 39563, Global Parts Distributors LLC 3411610 and 180389 for the same application. See all 12.

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Four Seasons 39563 Expansion Valve

Four Seasons 39563 is a block-type A/C expansion valve for R134A systems, built with an aluminum body and captured O-ring connections for precise refrigerant metering. It is an OE-style replacement for select Lexus, Toyota, and Mazda applications, including Lexus RX350h, RX500h, RX450h+, and Toyota Prius models.

Key Features

  • Brand: Four Seasons Expansion Valve
  • Part number: 39563
  • Block-type A/C expansion valve for R134A refrigerant
  • Aluminum construction with aluminum finish
  • Captured O-ring liquid and suction connections
  • Female fitting ends with No. 12 suction ports and No. 6 / No. 10 liquid ports
  • Mounting hole quantity: 2
  • Meets or exceeds OEM requirements
  • Style: w/o solenoid
  • Super heat rating: -7.000
  • Designed for 1-ton applications

Product Details

The Four Seasons Expansion Valve line focuses on refrigerant flow control at the evaporator inlet, helping regulate system pressure and temperature in automotive HVAC systems. Part number 39563 uses captured O-ring sealing surfaces and a block-style layout to match the factory configuration on supported vehicles. This valve is listed for Lexus RX350h, RX500h, RX450h+, RX450h, RX450hL, RX350, NX300h, NX300, NX200t, Mazda CX-9, and Toyota Prius applications, with fitment notes that include Japan-built Lexus RX models and front-position Mazda CX-9 and RX450h/RX450hL applications.

This part cross-references Global Parts Distributors LLC 3411610 for the same application.

Common Replacement Reasons

  • Weak or inconsistent cabin cooling
  • Incorrect evaporator refrigerant metering
  • Compressor cycling caused by restricted flow control
  • Temperature swings from a sticking expansion valve
  • Leak concerns at the valve-to-line sealing surfaces

Installation Notes

Verify the vehicle uses an R134A system and confirm the block-type valve layout, port sizes, and mounting-hole pattern before installation. Replace the O-ring seals with the correct captured O-ring style during service, and evacuate and recharge the system to the manufacturer specification after repairs. For fitment, use the exact application listing: Fits 2023-2025 Lexus RX350h, N/A; Fits 2023-2025 Lexus RX500h, N/A; Fits 2023-2025 Toyota Prius, N/A; Fits 2024 Lexus RX450h+, N/A; Fits 2016-2023 Mazda CX-9, Front; Fits 2015-2021 Lexus NX300h, N/A; Fits 2018-2020 Lexus NX300, N/A; Fits 2019 Lexus RX450h, Front; Fits 2019 Lexus RX450hL, Front; Fits 2016-2018 Lexus RX450h, N/A; Fits 2018 Lexus RX450hL, N/A; Fits 2015-2017 Lexus NX200t, N/A; Fits 2016-2017 Lexus RX350, N/A.

Quality Assurance

Four Seasons 39563 is identified as meeting or exceeding OEM requirements and is built as a direct-fit replacement for the listed Lexus, Toyota, and Mazda HVAC applications.

Related reading

This part fits 39 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2025LexusRX350hN/AJapan Built; Expansion Valve
2025LexusRX500hN/AJapan Built; Expansion Valve
2025ToyotaPriusN/AExpansion Valve
2024LexusRX350hN/AJapan Built; Expansion Valve
2024LexusRX450h+N/AExpansion Valve
2024LexusRX500hN/AJapan Built; Expansion Valve
2024ToyotaPriusN/AExpansion Valve
2023LexusRX350hN/AJapan Built; Expansion Valve
2023LexusRX500hN/AJapan Built; Expansion Valve
2023MazdaCX-9FrontExpansion Valve
2023ToyotaPriusN/AExpansion Valve
2022MazdaCX-9FrontExpansion Valve
2021LexusNX300hN/AExpansion Valve
2021MazdaCX-9FrontExpansion Valve
2020LexusNX300N/AExpansion Valve
2020LexusNX300hN/AExpansion Valve
2020MazdaCX-9FrontExpansion Valve
2019LexusNX300N/AExpansion Valve
2019LexusNX300hN/AExpansion Valve
2019LexusRX450hFrontExpansion Valve
2019LexusRX450hLFrontExpansion Valve
2019MazdaCX-9FrontExpansion Valve
2018LexusNX300N/AExpansion Valve
2018LexusNX300hN/AExpansion Valve
2018LexusRX450hN/AExpansion Valve
2018LexusRX450hLN/AExpansion Valve
2018MazdaCX-9FrontExpansion Valve
2017LexusNX200tN/AExpansion Valve
2017LexusNX300hN/AExpansion Valve
2017LexusRX350N/AExpansion Valve
2017LexusRX450hN/AExpansion Valve
2017MazdaCX-9FrontExpansion Valve
2016LexusNX200tN/AExpansion Valve
2016LexusNX300hN/AExpansion Valve
2016LexusRX350N/AExpansion Valve
2016LexusRX450hN/AExpansion Valve
2016MazdaCX-9FrontExpansion Valve
2015LexusNX200tN/AExpansion Valve
2015LexusNX300hN/AExpansion Valve
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 39563Global Parts Distributors LLC — 3411610180389217563759773885150E13031314158851548110A17563EX10502CT39563TK4861J14