How to service and repair the thermostat for the 5.4L (4V) engine on 2003 Lincoln Navigator?

A partial drain of the engine cooling system must happen before servicing and repairing the thermostat for the 5.4L (4V) engine. The service begins with removing the upper radiator hose and heater water inlet hose as well as the heated PCV inlet hose from the water outlet adapter. Follow the water hose removal step as next step. Perform the installation steps by following the reverse of the removal process.

OEM 2003 Lincoln Navigator Thermostat

Engine Coolant Thermostat

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2003 Lincoln Navigator Thermostat Part Number: 7L3Z-8575-E
$20.68 MSRP: $32.00
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat; Thermostat, Coolant
- Replaces: 7L3Z-8575-D, 7L3Z-8575-B, AL3Z-8575-B, RT-1196, RT-1230, 3L3Z-8575-AA, 3L3Z-8575-AC, 7L3Z-8575-C, AL3Z-8575-A, RT-1204, RT-1234, RT-1178, RT-1229, RT-1165
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L3Z-8575-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2003 Lincoln Navigator Submodels:
- Base, L, L Luxury, L Ultimate, Luxury, Ultimate | 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS

2003 Lincoln Navigator Thermostat

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2003 Lincoln Navigator Thermostat available at FordPartsDeal.com. You can confidently purchase our OEM 2003 Lincoln Navigator Thermostat 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 Thermostat Parts Q&A

Q: How to service and repair the thermostat for the 5.4L (4V) engine on 2003 Lincoln Navigator?
A: A partial drain of the engine cooling system must happen before servicing and repairing the thermostat for the 5.4L (4V) engine. The service begins with removing the upper radiator hose and heater water inlet hose as well as the heated PCV inlet hose from the water outlet adapter. Follow the water hose removal step as next step. Perform the installation steps by following the reverse of the removal process.