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Four Seasons 54805 A/C Evaporator Core - Rear
| Brand | Four Seasons 54805 |
|---|---|
| Position | Rear |
| Core Depth Fraction | 3-1/2 |
| Core Depth MM | 88.900 |
| Core Height Fraction | 7-1/8 |
| Core Height MM | 180.975 |
| Core Width Fraction | 10-9/16 |
| Core Width MM | 268.288 |
| Depth | 3.500 |
| Description | Evaporator Cores |
| Height | 7.125 |
| Height | 7.13 |
| Inlet Fitting Outside Diameter | No. 8 |
| Material | Aluminum |
| O-Ring A Number/Desc | [24608] / Green O-Ring |
| O-Ring B Number/Desc | [24610] / Green O-Ring |
| Outlet Fitting Outside Diameter | No. 10 |
| Outlet Fitting Type | Male Insert O-Ring |
| Type | Plate & Fin |
| Width | 10.5625 |
| Product line | Evaporator Core |
| Fits | Ford and Lincoln · 4 vehicles |
Plate and fin design. Promotes efficient heat transfer in the HVAC system.
Aluminum construction. Lightweight material resists corrosion and handles thermal cycling.
Male insert O-ring outlet. Provides a secure, leak-resistant connection.
Cross-references AP Exhaust 54805, Global Parts Distributors LLC 4711988 and Spectra Premium 1054805 for the same application. See all 20.
Rear A/C Evaporator Core for Ford and Lincoln
Four Seasons 54805 is an aluminum plate-and-fin A/C evaporator core built for rear HVAC service on select Ford and Lincoln SUVs. It matches the listed core dimensions and fitting layout for a direct replacement in 2003-2004 Ford Expedition and 2003-2004 Lincoln Navigator rear air conditioning systems.
Key Features
- Four Seasons Evaporator Core line
- Part number 54805
- Aluminum plate-and-fin construction
- Core width: 10-9/16 in. (268.288 mm)
- Core height: 7-1/8 in. (180.975 mm)
- Core depth: 3-1/2 in. (88.900 mm)
- Inlet fitting outside diameter: No. 8
- Outlet fitting outside diameter: No. 10
- Outlet fitting type: Male Insert O-Ring
- Includes Green O-Ring references 24608 and 24610
Product Details
Four Seasons 54805 evaporator core is specified for rear HVAC applications and uses a plate-and-fin aluminum design for efficient refrigerant heat transfer. The listed dimensions, inlet and outlet fitting sizes, and O-ring style help confirm proper service replacement for the rear evaporator assembly in 2003-2004 Ford Expedition and 2003-2004 Lincoln Navigator models. This part cross-references UAC EV939781PFC and Spectra Premium 1054805 for the same application.
Common Repair Symptoms
- Rear A/C vents blowing warm air
- Refrigerant odor or visible leakage at the evaporator case
- Reduced cooling performance from the rear HVAC system
- Moisture or condensation issues tied to evaporator leakage
- Service replacement after corrosion or internal blockage
Installation Notes
Fits 2003-2004 Ford Expedition, rear. Fits 2003-2004 Lincoln Navigator, rear. Verify the inlet and outlet fitting sizes, core dimensions, and O-ring style before installation to match the existing rear evaporator assembly. Proper evacuation, leak checking, and system recharge are required after replacement. Four Seasons 54805 should be installed with clean sealing surfaces and the correct refrigerant service procedures for the vehicle.
Quality Assurance
Four Seasons is a long-standing HVAC parts brand with coverage across automotive air conditioning service components. This evaporator core is built to the listed specifications for application matching and service reliability in rear HVAC repair.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2004 | Ford | Expedition | Rear | Evaporator Core |
| 2004 | Lincoln | Navigator | Rear | Evaporator Core |
| 2003 | Ford | Expedition | Rear | Evaporator Core |
| 2003 | Lincoln | Navigator | Rear | Evaporator Core |
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