OE Quality
60-Day Returns

Four Seasons 39091 A/C Expansion Valve - Front or Rear
Reliable A/C Expansion Valve for Select Vehicles
The Four Seasons Expansion Valve 39091 is designed to regulate refrigerant flow in automotive air conditioning systems. Engineered for compatibility with various makes and models, this brass TXV valve supports R134a refrigerant to maintain optimal cooling performance.
- Constructed from durable brass for corrosion resistance
- Compatible with R134a refrigerant systems
- TXV (Thermostatic Expansion Valve) type for precise refrigerant control
- Fits Chevrolet MPV, Dodge Viper, Geo Tracker, Honda Odyssey, Mazda MPV, Suzuki Sidekick, Toyota T100 and X-90
- Part number 39091 for accurate identification and replacement
About the Four Seasons Expansion Valve Product Line
The Expansion Valve product line by Four Seasons focuses on delivering precise refrigerant flow control components for automotive HVAC systems. This line includes TXV valves like part number 39091, designed to meet the specific cooling requirements of vehicles using R134a refrigerant. These valves help maintain system efficiency and temperature regulation by adjusting refrigerant flow based on thermal demand.
Product Details and Specifications
The Four Seasons 39091 A/C Expansion Valve is a thermostatic expansion valve (TXV) made from brass, ensuring durability and resistance to corrosion within the HVAC system. It is specifically engineered for use with R134a refrigerant, a common refrigerant type in many modern vehicles. This valve precisely meters refrigerant flow to the evaporator, optimizing cooling efficiency and preventing system freeze-up or overheating.
Common Applications and Issues Addressed
- Restores proper refrigerant flow in Chevrolet MPV and Mazda MPV A/C systems
- Resolves inconsistent cooling in Dodge Viper and Honda Odyssey air conditioning
- Prevents evaporator freeze-up in Geo Tracker and Suzuki Sidekick vehicles
- Improves temperature regulation in Toyota T100 and X-90 models
- Replaces faulty or worn expansion valves causing low A/C performance
Installation Notes and Tips
- Ensure system is evacuated and free of contaminants before installation
- Verify compatibility with vehicle make and model prior to replacement
- Handle valve carefully to avoid damage to the brass body and internal components
- Follow manufacturer torque specifications when securing the valve
- Recharge the system with R134a refrigerant after installation
Quality Assurance and Warranty
Four Seasons Expansion Valve 39091 is manufactured to meet industry standards for HVAC components. The brass construction and TXV design contribute to reliable performance and longevity. While specific warranty details should be confirmed with the supplier, Four Seasons products typically include coverage against manufacturing defects to ensure customer confidence.
| Brand | Four Seasons |
|---|---|
| Part Number | 39091 |
| Position | Expansion Valve, Rear |
| Color | Brass |
| Refrigerant Type | R134A |
| Type | TXV |
This part fits 37 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002 | Dodge | Viper | N/A | Expansion Valve |
| 2001 | Dodge | Viper | N/A | Expansion Valve |
| 2000 | Dodge | Viper | N/A | Expansion Valve |
| 1999 | Dodge | Viper | N/A | Expansion Valve |
| 1998 | Chevrolet | Tracker | N/A | Expansion Valve |
| 1998 | Dodge | Viper | N/A | Expansion Valve |
| 1998 | Honda | Odyssey | Rear | Expansion Valve |
| 1998 | Mazda | MPV | Front | Engine Cooling Fan Motor Relay - New Part; Expansion Valve |
| 1998 | Suzuki | Sidekick | N/A | Expansion Valve |
| 1998 | Suzuki | X-90 | N/A | Expansion Valve |
| 1998 | Toyota | T100 | N/A | Expansion Valve |
| 1997 | Dodge | Viper | N/A | Expansion Valve |
| 1997 | Geo | Tracker | N/A | Expansion Valve |
| 1997 | Honda | Odyssey | Rear | Expansion Valve |
| 1997 | Mazda | MPV | Front | Engine Cooling Fan Motor Relay - New Part; Expansion Valve |
| 1997 | Suzuki | Sidekick | N/A | Expansion Valve |
| 1997 | Suzuki | X-90 | N/A | Expansion Valve |
| 1997 | Toyota | T100 | N/A | Expansion Valve |
| 1996 | Dodge | Viper | N/A | Expansion Valve |
| 1996 | Geo | Tracker | N/A | Expansion Valve |
| 1996 | Honda | Odyssey | Rear | Expansion Valve |
| 1996 | Mazda | MPV | Front | Engine Cooling Fan Motor Relay - New Part; Expansion Valve |
| 1996 | Suzuki | Sidekick | N/A | Expansion Valve |
| 1996 | Suzuki | X-90 | N/A | Expansion Valve |
| 1996 | Toyota | T100 | N/A | Expansion Valve |
| 1995 | Dodge | Viper | N/A | Expansion Valve |
| 1995 | Geo | Tracker | N/A | Expansion Valve |
| 1995 | Honda | Odyssey | Rear | Expansion Valve |
| 1995 | Suzuki | Sidekick | N/A | Expansion Valve |
| 1995 | Toyota | T100 | N/A | Expansion Valve |
| 1994 | Dodge | Viper | N/A | Expansion Valve |
| 1994 | Geo | Tracker | N/A | Expansion Valve |
| 1994 | Suzuki | Sidekick | N/A | Expansion Valve |
| 1994 | Toyota | T100 | N/A | Expansion Valve |
| 1993 | Dodge | Viper | N/A | Expansion Valve |
| 1993 | Toyota | T100 | N/A | Expansion Valve |
| 1992 | Dodge | Viper | N/A | Expansion Valve |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.