How should a heater core leak be tested and what is the removal process on 2003 Lincoln Navigator?

Vehicle removal requires leak testing of the suspected heater core before its extraction. The first step requires you to remove the plenum chamber along with the dash panel seal. Start by disconnecting all screws that hold the heater core cover before extracting it with the heater core itself. Reverse the reinstallation steps to put back the heater core.

OEM 2003 Lincoln Navigator Heater Core

HVAC Heater Core

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2 Heater Cores found

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2003 Lincoln Navigator Heater Core, Front
Part Number: H2MZ-18476-P
$71.22 MSRP: $113.09
You Save: $41.87 (38%)
Product Specifications
- Other Name: Heater Assembly - Less Radiator; HVAC Heater Core, Front; HVAC Heater Core
- Position: Front
- Replaces: 2L1Z-18476-AA, 2L1Z-18476-BA, HC-33
- Item Weight: 3.20 Pounds
- Item Dimensions: 9.1 x 13.3 x 11.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: H2MZ-18476-P
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Lincoln Navigator Submodels:
- Base, Luxury, Ultimate | 8 Cyl 5.4 L GAS
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2003 Lincoln Navigator Heater Core, Rear
Part Number: 2L1Z-18476-CA
Product Specifications
- Other Name: Core Assembly - Heater; HVAC Heater Core, Rear
- Position: Rear
- Base No.: 18B539
- Item Weight: 2.50 Pounds
- Item Dimensions: 10.5 x 5.1 x 10.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 2L1Z-18476-CA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Lincoln Navigator Submodels:
- Base, Luxury, Ultimate | 8 Cyl 5.4 L GAS

2003 Lincoln Navigator Heater Core

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2003 Lincoln Navigator Heater Core available at FordPartsDeal.com. You can confidently purchase our OEM 2003 Lincoln Navigator Heater Core as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2003 Lincoln Navigator Heater Core Parts Questions & Experts Answers

Q: How should a heater core leak be tested and what is the removal process on 2003 Lincoln Navigator?
A: Vehicle removal requires leak testing of the suspected heater core before its extraction. The first step requires you to remove the plenum chamber along with the dash panel seal. Start by disconnecting all screws that hold the heater core cover before extracting it with the heater core itself. Reverse the reinstallation steps to put back the heater core.