How do you replace the heater core on Ford Explorer?

To replace the heater core on 1994 and earlier models, remove the cable from the negative battery post and drain the cooling system. The clamps on the heater hoses should be loosened at the engine compartment side of the firewall so that they can be separated from the heater core tubes which are then capped. In the passenger compartment, unscrew, and pull out of plenum assembly, taking care not to damage them. For removing it, pull down and towards rear for taking out a heater core while finally installing it is just a reversal process making sure to replenish coolant and check for leaks.

Genuine Ford Explorer Heater Core

HVAC Heater Core

Enter your vehicle info to find more parts and verify fitment

Select Vehicle by VIN
Select Vehicle by Model

Select by VIN

Enter your VIN for the most accurate results.

Select by Model

-- Select Make --

-- Select Model --

-- Select Year --

10 Heater Cores found

View related parts
Ford Explorer Radiator And Seal Assembly - Heater
Part Number: AE9Z-18476-B
- Other Name: Radiator And Seal Assy - Heater; Heater Core
- Replaces: HC-54, AE9Z-18476-A
$102.48 MSRP: $203.64
You Save: $101.16 (50%)

Add to Cart
More Info
Fits the following Vehicles:
2011-2019 Ford Explorer | 4 Cyl 2.0L EcoBoost (240PS), 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.5L Cyclone Petrol TIVCT, 6 Cyl 3.5L DOHC T/C, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
Less Info
View related parts
Ford Explorer Core Assembly - Heater
Part Number: CG1Z-18476-A
- Other Name: Core Assy - Heater
- Manufacturer Note: Includes Seal
- Replaced by: CG1Z-18476-B
$165.17 MSRP: $330.91
You Save: $165.74 (51%)

Add to Cart
More Info
Fits the following Vehicles:
2012-2019 Ford Explorer | 4 Cyl 2.0L EcoBoost (240PS) , 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.5L Cyclone Petrol TIVCT, 6 Cyl 3.5L DOHC T/C, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
Less Info
View related parts
Ford Explorer Core Assembly - Heater
Part Number: AE9Z-18476-A
- Other Name: Core Assy - Heater
- Replaced by: AE9Z-18476-B
$102.48 MSRP: $203.64
You Save: $101.16 (50%)

Add to Cart
More Info
Fits the following Vehicles:
2011-2016 Ford Explorer | 4 Cyl 2.0L EcoBoost (240PS) , 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.5L Cyclone Petrol TIVCT, 6 Cyl 3.5L DOHC T/C, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
Less Info
View related parts
Ford Explorer Core Assembly - Heater
Part Number: F5TZ-18476-A
- Other Name: Core Assy - Heater
- Manufacturer Note: Core & seal asy.
- Replaced by: H2MZ-18476-AC
More Info
Fits the following Vehicles:
1995-2001 Ford Explorer | 6 Cyl 4.0L, 8 Cyl 5.0L | 4AT 4R44E, 4AT 4R55E, 4AT 4R70W, 4AT A4LD, 4AT AODE-E, 4AT AODE-W, 5AT 5R55E, 5MT
Less Info
View related parts
Ford Explorer Core Assembly - Heater
Part Number: 6L2Z-18476-A
- Other Name: Core Assy - Heater
- Replaced by: H2MZ-18476-Y
More Info
Fits the following Vehicles:
2002-2007 Ford Explorer | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Explorer Radiator And Seal Assembly - Heater
Part Number: 5L2Z-18476-AA
- Other Name: Radiator And Seal Assy - Heater
- Replaced by: H2MZ-18476-Y
More Info
Fits the following Vehicles:
2006 Ford Explorer | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Explorer Core Assembly - Heater
Part Number: E9TZ-18476-A
- Other Name: Core Assy - Heater
- Manufacturer Note: Use w/seal E9TZ 18658-A
- Replaced by: H2MZ-18476-D
More Info
Fits the following Vehicles:
1991-1994 Ford Explorer | 6 Cyl 4.0L | 4AT A4LD, 5MT
Less Info
View related parts
Ford Explorer Radiator And Seal Assy - Heater
Part Number: AA5Z-18476-A
- Other Name: Core Assy - Heater
- Manufacturer Note: Includes Seal
- Replaced by: AA5Z-18476-B
More Info
Fits the following Vehicles:
2011 Ford Explorer | 6 Cyl 3.5L Cyclone Petrol TIVCT | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
Less Info
View related parts
Ford Explorer Core Assembly - Heater
Part Number: 7L2Z-18476-A
- Other Name: Core Assy - Heater
- Replaced by: H2MZ-18476-Y
More Info
Fits the following Vehicles:
2007-2010 Ford Explorer | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Explorer Core Assembly - Heater
Part Number: 1L2Z-18476-CA
- Other Name: Core Assy - Heater
- Replaced by: H2MZ-18476-X
More Info
Fits the following Vehicles:
2002-2010 Ford Explorer | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info

Ford Explorer Heater Core Parts Questions & Answers

Core Assembly - Heater
F5TZ-18476-A
Q: How do you replace the heater core on Ford Explorer?
A: To replace the heater core on 1994 and earlier models, remove the cable from the negative battery post and drain the cooling system. The clamps on the heater hoses should be loosened at the engine compartment side of the firewall so that they can be separated from the heater core tubes which are then capped. In the passenger compartment, unscrew, and pull out of plenum assembly, taking care not to damage them. For removing it, pull down and towards rear for taking out a heater core while finally installing it is just a reversal process making sure to replenish coolant and check for leaks.