Four Seasons 38725 A/C Expansion Valve
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Four Seasons
 Expansion Valve

Four Seasons 38725 A/C Expansion Valve

Brand Four Seasons 38725
Color Brass
Refrigerant Type R134A
Super Heat 8.0
Type TXV
Product line Expansion Valve
Fits Jeep, Ford, Mercury, Subaru, Volkswagen, Nissan, Porsche, Mazda, International, Mercedes-Benz, and Audi · 96 vehicles

TXV design. Provides precise refrigerant flow control for consistent A/C performance.

Brass construction. Durable material suited for demanding HVAC service.

R134A compatible. Built for use with R134A refrigerant systems.

Cross-references AMS Automotive 4680, AP Exhaust 38725 and Carlson 17501 for the same application. See all 141.

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Four Seasons 38725 Expansion Valve Overview

The Four Seasons 38725 expansion valve is a TXV-style A/C flow restrictor built for R134A systems. With an 8.0 super heat setting and brass construction, it helps regulate refrigerant flow through the evaporator for stable HVAC performance.

Compatible with select Jeep Grand Wagoneer, Jeep J10, Jeep J20, Jeep Cherokee, Jeep Wagoneer, Ford Thunderbird, Mercury Cougar, Porsche 911, Nissan 720, Mazda 626, Mazda RX-7, Volkswagen Quantum, and Subaru Standard applications, this Four Seasons expansion valve is a direct-fit service part for many vintage and late-1980s air conditioning systems.

Key Features

  • Four Seasons Expansion Valve, part number 38725
  • TXV design for controlled refrigerant metering
  • R134A refrigerant type
  • Brass body construction
  • 8.0 super heat specification
  • Cross-references UAC EX6030C for the same application

Product Details

The Four Seasons Expansion Valve line focuses on precise refrigerant control in automotive HVAC systems. This 38725 valve is specified for R134A service and uses a TXV configuration to manage evaporator feed based on system demand. That makes it a practical replacement for vehicles needing consistent A/C flow control, including applications such as 1978-1983 Porsche 911, 1980-1985 Nissan 720, and 1983-1989 Ford Thunderbird.

For buyers searching by vehicle and service need, this part supports common expansion valve replacement jobs on Jeep Cherokee, Jeep Wagoneer, Mazda RX-7, and Volkswagen Quantum platforms where proper refrigerant metering is critical to cabin cooling performance.

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 sticking valve
  • Temperature fluctuations during compressor cycling
  • Service replacement for aging R134A HVAC systems

Installation Notes and Tips

Verify refrigerant type, valve style, and system configuration before installation. This part is listed for TXV applications and should be matched to the vehicle’s original A/C setup, including flare-fitting systems where noted. Always inspect the receiver drier, seals, and related HVAC components during service to help ensure proper system operation after replacement.

Quality Assurance

Four Seasons is a recognized aftermarket brand for HVAC service parts, and the 38725 expansion valve is built to meet the listed application and specification details for direct replacement use.

Related reading

This part fits 96 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1993JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1991JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1990JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1989FordThunderbirdN/AA/C Receiver Drier; Expansion Valve
1989JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1989MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1988FordCougarN/AA/C Receiver Drier; Expansion Valve
1988FordThunderbirdN/AA/C Receiver Drier; Expansion Valve
1988JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1988JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1988JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1988MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1988VolkswagenQuantumN/AExpansion Valve
1987FordCougarN/AA/C Receiver Drier; Expansion Valve
1987FordThunderbirdN/AA/C Receiver Drier; Expansion Valve
1987JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1987JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1987JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1987MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1987SubaruStandardN/AExpansion Valve
1987VolkswagenQuantumN/AExpansion Valve
1986FordCougarN/AA/C Receiver Drier; Expansion Valve
1986FordThunderbirdN/AA/C Receiver Drier; Expansion Valve
1986JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1986JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1986JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1986MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1986SubaruStandardN/AExpansion Valve
1986VolkswagenQuantumN/AExpansion Valve
1985FordCougarN/AA/C Receiver Drier; Expansion Valve
1985FordThunderbirdN/AA/C Receiver Drier; Expansion Valve
1985JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1985MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1985Nissan720N/Aw/ Flare Fittings; Expansion Valve
1985VolkswagenQuantumN/AExpansion Valve
1984FordThunderbirdN/AA/C Receiver Drier; Expansion Valve
1984JeepGrand WagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1984JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1984JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1984MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1984Nissan720N/Aw/ Flare Fittings; Expansion Valve
1984VolkswagenQuantumN/AExpansion Valve
1983FordThunderbirdN/AA/C Receiver Drier; Expansion Valve
1983JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1983JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1983JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1983JeepWagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1983MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1983Nissan720N/Aw/ Flare Fittings; Expansion Valve
1983Porsche911N/Aw/ Flare Fittings; Expansion Valve
1983VolkswagenQuantumN/AExpansion Valve
1982JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1982JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1982JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1982JeepWagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1982MercuryCougarN/AA/C Receiver Drier; Expansion Valve
1982Nissan720N/Aw/ Flare Fittings; Expansion Valve
1982Porsche911N/Aw/ Flare Fittings; Expansion Valve
1982VolkswagenQuantumN/AExpansion Valve
1981JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1981JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1981JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1981JeepWagoneerN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1981Mazda626N/AExpansion Valve
1981MazdaRX-7N/AA/C Receiver Drier; Expansion Valve
1981Nissan720N/Aw/ Flare Fittings; Expansion Valve
1981Porsche911N/Aw/ Flare Fittings; Expansion Valve
1980JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1980JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1980JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1980Mazda626N/AExpansion Valve
1980MazdaRX-7N/AExternally Equalized; Expansion Valve
1980Nissan720N/Aw/ Flare Fittings; Expansion Valve
1980Porsche911N/Aw/ Flare Fittings; Expansion Valve
1979JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1979JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1979JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1979Mazda626N/AExpansion Valve
1979MazdaRX-7N/AExternally Equalized; Expansion Valve
1979Porsche911N/Aw/ Flare Fittings; Expansion Valve
1978JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1978JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1978JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1978Porsche911N/Aw/ Flare Fittings; Expansion Valve
1977JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1977JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1977JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1976JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1976JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1976JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1975JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1975JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1975JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1974JeepCherokeeN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1974JeepJ10N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
1974JeepJ20N/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Expansion Valve
Directly replaces or cross-references 141 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4680AP Exhaust — 38725Carlson — 17501Dixie Electric Ltd — 11838FEL-PRO — 1610GKN L√∂bro — 306125Global Parts Distributors LLC — 3411263UAC —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