How to service and repair the heater core on Lincoln Navigator?

The service and repair of heater cores begins with disconnecting the battery ground cable and draining the radiator. The instrument panel must be removed first and then the junction block splash shield. Remove bolts from the starter relay cable ends before disconnecting the wire harness connector and bolts from the junction block bracket. The service of the heater core begins by removing the A/C plenum demister adapter using screw removal then uncoupling both heater core hoses. First unscrew the vacuum line then remove the heater core bracket by taking out its two screws. Start by unscrewing the plenum chamber top through the 13 screws until the blend door assembly can be detached from its case then the heater core must be extracted last. The installation procedure must follow the opposite steps of removal.

OEM Lincoln Navigator Heater Core

HVAC Heater Core

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16 Heater Cores found

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Lincoln Navigator Heater Core, Front
Part Number: H2MZ-18476-C
$74.88 MSRP: $118.91
You Save: $44.03 (38%)
ADD TO CART
Product Specifications
- Other Name: Heater Assembly - Less Radiator; HVAC Heater Core, Front; HVAC Heater Core
- Manufacturer Note: High Level Aftermarket Spec / Non Warranty Repairs
- Position: Front
- Replaces: F65Z-18476-AA, HC-78, 1L7Z-18476-AA, HC-15
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2001 Lincoln Navigator | Base | 8 Cyl 5.4 L GAS
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Lincoln Navigator Heater Core, Rear
Part Number: 7L1Z-18476-B
$154.58 MSRP: $245.45
You Save: $90.87 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Core Assembly - Heater; HVAC Heater Core, Rear; HVAC Heater Core
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2017 Lincoln Navigator | Base, Luxury, Reserve, Select, Ultimate | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
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Lincoln Navigator Case Assembly, Front
Part Number: NL3Z-19850-E
$350.72 MSRP: $515.00
You Save: $164.28 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Evaporator Assembly; HVAC Unit Case Assembly, Front; A/C & Heater Assembly
- Position: Front
- Replaces: NL3Z-19850-B, ML3Z-19850-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2022-2024 Lincoln Navigator | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, Reserve | 6 Cyl 3.5 L GAS
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Lincoln Navigator A/C & Heater Assembly
Part Number: JL1Z-19850-AK
$554.40 MSRP: $821.33
You Save: $266.93 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Heater Assembly; HVAC Unit Case Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2024 Lincoln Navigator | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, Reserve | 6 Cyl 3.5 L GAS
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Lincoln Navigator A/C & Heater Assembly, Rear
Part Number: JL1Z-19850-AJ
$534.36 MSRP: $784.67
You Save: $250.31 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Heater Assembly; HVAC Unit Case Assembly, Rear
- Position: Rear
- Replaces: JL1Z-19850-AG
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2021 Lincoln Navigator | Base, Black Label, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Navigator Heater Core, Rear
Part Number: 7L1Z-18476-C
$125.57 MSRP: $199.40
You Save: $73.83 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Core Assembly - Heater; HVAC Heater Core, Rear; HVAC Heater Core
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2017 Lincoln Navigator | L, L Luxury, L Reserve, L Select, L Ultimate | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
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Lincoln Navigator Heater Core, Front
Part Number: FL3Z-18476-B
$117.22 MSRP: $192.87
You Save: $75.65 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Radiator And Seal Assembly - Heater; HVAC Heater Core, Front; HVAC Heater Core
- Position: Front
- Replaces: HC-70, FL3Z-18476-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2024 Lincoln Navigator | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Navigator Heater Core, Front
Part Number: BL3Z-18476-A
$138.63 MSRP: $228.11
You Save: $89.48 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Core Assembly - Heater; HVAC Heater Core, Front; HVAC Heater Core
- Manufacturer Note: Includes Seal
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2017 Lincoln Navigator | Base, L, L Reserve, L Select, Reserve, Select | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX
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Lincoln Navigator Air Inlet Duct
Part Number: HL3Z-19A618-AC
$55.34 MSRP: $85.00
You Save: $29.66 (35%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Duct - Air; HVAC Air Inlet Housing; Cabin Air Intake Duct; Case Assembly; Center Duct
- Replaced by: HL3Z-19A618-AD
- Replaces: HL3Z-19A618-AA, HL3Z-19A618-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2024 Lincoln Navigator | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
View related parts
Lincoln Navigator Heater Core, Rear
Part Number: ML1Z-18476-A
$75.57 MSRP: $120.00
You Save: $44.43 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Radiator And Seal Assembly - Heater; HVAC Heater Core, Rear
- Position: Rear
- Replaces: HC-80, JL1Z-18476-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2024 Lincoln Navigator | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
View related parts
Lincoln Navigator Evaporator Core
Part Number: HL3Z-19850-GK
$649.69 MSRP: $1050.00
You Save: $400.31 (39%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Evaporator Assembly; Case Assembly; A/C & Heater Assembly
- Replaces: HL3Z-19850-G, HL3Z-19850-GG, HL3Z-19850-Y, HL3Z-19850-L, HL3Z-19850-GF, HL3Z-19850-X
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2021 Lincoln Navigator | Base, Black Label, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
View related parts
Lincoln Navigator Heater Core, Rear
Part Number: F75Z-18476-AA
Product Specifications
- Other Name: Radiator And Seal Assembly; HVAC Heater Core, Rear; Core Assembly - Heater; HVAC Heater Core
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998 Lincoln Navigator | Base | 8 Cyl 5.4 L GAS
View related parts
Lincoln Navigator Heater Core, Rear
Part Number: H2MZ-18476-X
Product Specifications
- Other Name: Heater Assembly - Less Radiator; HVAC Heater Core, Rear; HVAC Heater Core
- Position: Rear
- Replaces: 1L2Z-18476-CA, HC-32, HC-25, F85Z-18476-AA, HC-22
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2002 Lincoln Navigator | Base | 8 Cyl 5.4 L GAS
View related parts
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
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2006 Lincoln Navigator | Base, Luxury, Ultimate | 8 Cyl 5.4 L GAS
View related parts
Lincoln Navigator Heater Core, Front
Part Number: H2MZ-18476-AA
$80.61 MSRP: $128.00
You Save: $47.39 (38%)
Product Specifications
- Other Name: Heater Assembly - Less Radiator; HVAC Heater Core, Front; HVAC Heater Core
- Position: Front
- Replaces: HC-51, HC-44, 7L1Z-18476-A, 9L3Z-18476-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Lincoln Navigator | Base, L, L Luxury, L Ultimate, Luxury, Ultimate | 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
View related parts
Lincoln Navigator Heater Core, Rear
Part Number: 2L1Z-18476-CA
Product Specifications
- Other Name: Core Assembly - Heater; HVAC Heater Core, Rear
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2006 Lincoln Navigator | Base, Luxury, Ultimate | 8 Cyl 5.4 L GAS

Lincoln Navigator Heater Core

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Lincoln Navigator Heater Core Parts Questions & Experts Answers

Heater Core, Front
H2MZ-18476-C
Q: How to service and repair the heater core on Lincoln Navigator?
A: The service and repair of heater cores begins with disconnecting the battery ground cable and draining the Radiator. The instrument panel must be removed first and then the junction block splash shield. Remove bolts from the starter relay cable ends before disconnecting the wire harness connector and bolts from the junction block bracket. The service of the heater core begins by removing the A/C plenum demister adapter using screw removal then uncoupling both heater core hoses. First unscrew the vacuum line then remove the heater core bracket by taking out its two screws. Start by unscrewing the plenum chamber top through the 13 screws until the blend door assembly can be detached from its case then the heater core must be extracted last. The installation procedure must follow the opposite steps of removal.