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Four Seasons 39045 A/C Expansion Valve - Rear
| Brand | Four Seasons 39045 |
|---|---|
| Position | Rear |
| Color | Aluminum |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Size IN | 0.41 |
| Liquid Inlet Size MM | 10.5 |
| Liquid Inlet Style | FIO |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | Insert O-Ring |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Liquid Outlet Style | FIO |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | Insert O-Ring |
| Lqd Out Size IN | 0.540 |
| Lqd Out Size MM | 13.6 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| O-Ring A Number/Desc | [24606] / Green O-Ring |
| O-Ring B Number/Desc | [24608] / Green O-Ring |
| O-Ring C Number/Desc | [24610] / Green O-Ring |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.650 |
| Suc In Size MM | 16.4 |
| Suc Out Size IN | 0.65 |
| Suc Out Size MM | 16.4 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | FIO |
| Suction Inlet Thread Type | Not Threaded |
| Suction Inlet Type | Insert O-Ring |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 10 |
| Suction Outlet Style | FIO |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | Insert O-Ring |
| Super Heat | -2.500 |
| Switch Included? | Not Included |
| Tonnage | 1.500 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Dodge · 3 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for a confident fit.
Aluminum construction. Lightweight material helps resist corrosion in the A/C system.
Block type design. Built for precise refrigerant flow control without a solenoid.
Cross-references BBB Industries 17778, Febi-Bilstein 46304 and Four Seasons 39045 for the same application. See all 20.
Rear A/C Expansion Valve for Durango
Four Seasons 39045 is a block-type A/C expansion valve for R134A systems, built in aluminum for rear HVAC service. It is specified for 1998-2000 Dodge Durango rear applications and meets or exceeds OEM requirements for the listed use.
Key Features
- Brand: Four Seasons Expansion Valve
- Part number: 39045
- Block-type A/C expansion valve
- Aluminum construction and aluminum finish
- Designed for R134A refrigerant systems
- Rear HVAC application for 1998-2000 Dodge Durango
- Female FIO insert O-ring liquid and suction connections
- Mounting hole quantity: 2
- Meets or exceeds OEM specifications
- Style: w/o solenoid
Product Details
Four Seasons 39045 is an A/C expansion valve used to regulate refrigerant flow into the evaporator on the rear HVAC circuit. The valve uses female insert O-ring fittings with No. 6 liquid inlet, No. 8 liquid outlet, and No. 10 suction connections, along with the listed green O-ring sealing points for the application. This part cross-references UAC EX529448C for the same application.
Compatible with 1998-2000 Dodge Durango rear A/C service, this Four Seasons expansion valve is a direct-fit service part for technicians replacing a restricted, leaking, or improperly metering valve. The Four Seasons 39045 part number is also referenced in aftermarket interchange listings including 11139045 and 55055876AA.
Common Problems This Part Can Address
- Rear A/C vent air that is not cooling properly
- Refrigerant flow restriction at the evaporator inlet
- Erratic evaporator performance from a sticking valve
- Leak points at the expansion valve sealing surfaces
- Uneven rear cabin cooling in Dodge Durango HVAC systems
Installation Notes and Tips
Verify the vehicle uses R134A refrigerant and confirm the rear HVAC layout before installation. Inspect the mating lines, O-ring sealing surfaces, and mounting points for wear or contamination, and replace damaged seals as needed during service. Evacuate and recharge the system according to factory procedures after installation.
Quality Assurance
Four Seasons lists this expansion valve as meeting or exceeding OEM specifications for the stated application. The aluminum block-style design and OE-style fitment support accurate refrigerant metering in the rear HVAC system.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | Dodge | Durango | Rear | Expansion Valve |
| 1999 | Dodge | Durango | Rear | Expansion Valve |
| 1998 | Dodge | Durango | Rear | Expansion Valve |
| No rows match your filter. | ||||