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One Stop Solutions 98003 HVAC Heater Core - Rear
| Brand | One Stop Solutions 98003 |
|---|---|
| Position | Rear |
| Fits | Ford and Lincoln · 17 vehicles |
OE direct replacement. Matches original form and function for straightforward installation.
Aluminum construction. Premium-grade material with cadmium-plated tubes helps resist premature failure.
Pressure tested. Individually tested for dependable performance before it ships.
Cross-references APDI 9010026 and Focus Auto Parts 93003 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Rear Heater Core for Expedition and Navigator
Restore cabin heat with this OSC Premium new HVAC heater core, part number 98003. It is built for rear HVAC service in the 1997-2002 Ford Expedition and 1998-2002 Lincoln Navigator, with OE-style form and function for direct replacement use.
- German engineered for long service life and consistent performance
- Large-bore design for greater fluid capacity
- Premium aluminum construction with cadmium-plated tubes inside and out
- Individually pressure tested before release
- Foam and related accessories included for installation support
- Liquid metallic paint finish with red dust covers
Built for Rear HVAC Performance
OSC Premium heater core 98003 is made from aluminum and replaces applications originally designed around a copper-style heater core. The construction focuses on corrosion resistance, fluid flow, and OE-style fitment for rear heating systems in the Ford Expedition and Lincoln Navigator. This part cross-references APDI 9010026 and Focus Auto Parts 93003 for the same application.
Common Problems This Part Can Address
- Weak or uneven rear cabin heat
- Coolant seepage from a failing heater core
- Restricted coolant flow through the HVAC core
- Loss of rear passenger comfort in cold weather
- Replacement needs after corrosion or internal tube failure
Installation Notes and Tips
Fits 1997-2002 Ford Expedition, rear. Fits 1998-2002 Lincoln Navigator, rear. Confirm rear HVAC configuration and compare the original core before installation. Flush the cooling system, inspect hoses and seals, and verify all foam pieces and accessories are transferred or positioned correctly during assembly. Part number 98003 should be matched to the vehicle’s rear heater core application before reassembly.
Quality Assurance
Each OSC Premium heater core is pressure tested individually to verify integrity before shipment. The aluminum core design, plated tubes, and OE-style construction are engineered to meet the demands of daily driving, towing, and fleet use in Expedition and Navigator rear HVAC systems.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Ford | Expedition | 4.6L | V8 | Rear | — |
| 2002 | Ford | Expedition | 5.4L | V8 | Rear | — |
| 2002 | Lincoln | Navigator | 5.4L | V8 | Rear | — |
| 2001 | Ford | Expedition | 4.6L | V8 | Rear | — |
| 2001 | Ford | Expedition | 5.4L | V8 | Rear | — |
| 2001 | Lincoln | Navigator | 5.4L | V8 | Rear | — |
| 2000 | Ford | Expedition | 4.6L | V8 | Rear | — |
| 2000 | Ford | Expedition | 5.4L | V8 | Rear | — |
| 2000 | Lincoln | Navigator | 5.4L | V8 | Rear | — |
| 1999 | Ford | Expedition | 4.6L | V8 | Rear | — |
| 1999 | Ford | Expedition | 5.4L | V8 | Rear | — |
| 1999 | Lincoln | Navigator | 5.4L | V8 | Rear | — |
| 1998 | Ford | Expedition | 4.6L | V8 | Rear | — |
| 1998 | Ford | Expedition | 5.4L | V8 | Rear | — |
| 1998 | Lincoln | Navigator | 5.4L | V8 | Rear | — |
| 1997 | Ford | Expedition | 4.6L | V8 | Rear | — |
| 1997 | Ford | Expedition | 5.4L | V8 | Rear | — |
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