How to remove and install a heater core in a Ford Expedition?

Take the vehicle to an air conditioning shop to discharge the AC system. Disconnect the negative battery terminal and drain the cooling system. Remove the instrument panel, and disconnect and plug the heater hoses and evaporator lines at the firewall. Remove the plenum demister tube, the bracket on top of the heater core housing, and the heater core cover. Carefully remove the heater core. When reinstalling, ensure the foam sealing material is intact. Reverse the removal steps for the rest of the installation. Install new retainers and O-rings on the heater core hoses, refill the cooling system, and check for coolant leaks. Have the AC system charged. Navigator/Expedition models have an optional rear heal/AC system, with removal and installation similar to the front system.

Genuine Ford Expedition Heater Core

HVAC Heater Core

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12 Heater Cores found

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Ford Expedition Core Assembly - Heater
Part Number: 2L1Z-18476-BA
- Other Name: Core Assy - Heater
- Manufacturer Note: Includes Seal
- Replaced by: H2MZ-18476-P
$77.25 MSRP: $109.64
You Save: $32.39 (30%)

Add to Cart
More Info
Fits the following Vehicles:
2003-2006 Ford Expedition | 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 5.4L Modular SOHC | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Core Assembly - Heater
Part Number: F65Z-18476-AA
- Other Name: Core Assy - Heater
- Replaced by: H2MZ-18476-C
$77.51 MSRP: $110.00
You Save: $32.49 (30%)

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More Info
Fits the following Vehicles:
1997-2002 Ford Expedition | 8 Cyl 4.6L, 8 Cyl 5.4L | 4AT 4R100, 4AT 4R70W, 4AT E4OD
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Ford Expedition Core Assembly - Heater
Part Number: 9L3Z-18476-A
- Other Name: Core Assy - Heater
- Manufacturer Note: Includes Seal
- Replaced by: H2MZ-18476-AA
$91.21 MSRP: $129.45
You Save: $38.24 (30%)

Add to Cart
More Info
Fits the following Vehicles:
2009-2010 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Core Assembly - Heater
Part Number: 7L1Z-18476-A
- Other Name: Core Assy - Heater
- Manufacturer Note: Includes Seal
- Replaced by: H2MZ-18476-AA
$91.21 MSRP: $129.45
You Save: $38.24 (30%)

Add to Cart
More Info
Fits the following Vehicles:
2007-2008 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Core Assembly - Heater
Part Number: 7L1Z-18476-B
- Other Name: Core Assy - Heater; Heater Core
$153.90 MSRP: $245.45
You Save: $91.55 (38%)

Add to Cart
More Info
Fits the following Vehicles:
2007-2017 Ford Expedition | 6 Cyl 3.5L GTDI, 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
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Ford Expedition Core Assembly - Heater
Part Number: BL3Z-18476-A
- Other Name: Core Assy - Heater; Heater Core
- Manufacturer Note: Includes Seal
$99.77 MSRP: $164.91
You Save: $65.14 (40%)

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More Info
Fits the following Vehicles:
2011-2017 Ford Expedition | 6 Cyl 3.5L GTDI, 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
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Ford Expedition Radiator And Seal Assembly - Heater
Part Number: FL3Z-18476-A
- Other Name: Radiator And Seal Assy - Heater
- Replaced by: FL3Z-18476-B
$116.60 MSRP: $192.73
You Save: $76.13 (40%)

Add to Cart
More Info
Fits the following Vehicles:
2018-2019 Ford Expedition | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
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Ford Expedition Radiator And Seal Assembly - Heater
Part Number: JL1Z-18476-AA
- Other Name: Radiator And Seal Assy - Heater; Heater Core
- Replaced by: ML1Z-18476-A
$75.24 MSRP: $120.00
You Save: $44.76 (38%)

Add to Cart
More Info
Fits the following Vehicles:
2018-2019 Ford Expedition | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Core Assembly - Heater
Part Number: 7L1Z-18476-C
- Other Name: Core Assy - Heater; Heater Core
$103.74 MSRP: $165.45
You Save: $61.71 (38%)

Add to Cart
More Info
Fits the following Vehicles:
2007-2017 Ford Expedition | 6 Cyl 3.5L GTDI, 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Core Assembly - Heater
Part Number: F75Z-18476-AA
- Other Name: Core Assy - Heater; Heater Core
More Info
Fits the following Vehicles:
1997-1998 Ford Expedition | 8 Cyl 4.6L, 8 Cyl 5.4L | 4AT 4R100, 4AT 4R70W, 4AT E4OD
Less Info
View related parts
Ford Expedition Core Assembly - Heater
Part Number: F85Z-18476-AA
- Other Name: Core Assy - Heater
- Replaced by: H2MZ-18476-X
More Info
Fits the following Vehicles:
1998-2002 Ford Expedition | 8 Cyl 4.6L, 8 Cyl 5.4L | 4AT 4R100, 4AT 4R70W, 4AT E4OD
Less Info
View related parts
Ford Expedition Core Assembly - Heater
Part Number: 2L1Z-18476-CA
- Other Name: Core Assy - Heater; Heater Core
More Info
Fits the following Vehicles:
2003-2006 Ford Expedition | 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 5.4L Modular SOHC | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info

Ford Expedition Heater Core Parts Questions & Answers

Core Assembly - Heater
7L1Z-18476-B
Q: How to remove and install a heater core in a Ford Expedition?
A: Take the vehicle to an air conditioning shop to discharge the AC system. Disconnect the negative battery terminal and drain the cooling system. Remove the instrument panel, and disconnect and plug the heater hoses and Evaporator lines at the firewall. Remove the plenum demister tube, the bracket on top of the heater core housing, and the heater core cover. Carefully remove the heater core. When reinstalling, ensure the foam sealing material is intact. Reverse the removal steps for the rest of the installation. Install new retainers and O-rings on the heater core hoses, refill the cooling system, and check for coolant leaks. Have the AC system charged. Navigator/Expedition models have an optional rear heal/AC system, with removal and installation similar to the front system.