How to service the heater core on Ford F-150 Heritage?

The service process starts with performing a pressure leak test when there is suspicion of a leak. Start by taking out the instrument panel from its position. You must clamp off then detach the heater core hose couplings. To continue the process remove the A/C plenum demister adapter by first unscrewing it and then extracting both the screw and adapter. First uninstall the relay bracket screws then place it aside before unplugging the vacuum line. Unfasten all 15 screws from the plenum chamber top to complete its removal. After removing the top it becomes possible to remove both the blend door assembly from its case and the heater core. Install the device by working in reverse order while applying plain water on coolant hoses when needed.

OEM Ford F-150 Heritage Heater Core

HVAC Heater Core

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2 Heater Cores found

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Ford F-150 Heritage Heater Core, Front
Part Number: H2MZ-18476-C
$74.88 MSRP: $118.91
You Save: $44.03 (38%)
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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:
- 2004 Ford F-150 Heritage | SVT Lightning, XL, XLT | 6 Cyl 4.2 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L GAS
View related parts
Ford F-150 Heritage 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:
- 2004 Ford F-150 Heritage | SVT Lightning, XL, XLT | 6 Cyl 4.2 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L GAS

Ford F-150 Heritage Heater Core

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Ford F-150 Heritage Heater Core Parts Questions & Experts Answers

Heater Core, Front
H2MZ-18476-C
Q: How to service the heater core on Ford F-150 Heritage?
A: The service process starts with performing a pressure leak test when there is suspicion of a leak. Start by taking out the instrument panel from its position. You must clamp off then detach the heater core hose couplings. To continue the process remove the A/C plenum demister adapter by first unscrewing it and then extracting both the screw and adapter. First uninstall the relay bracket screws then place it aside before unplugging the vacuum line. Unfasten all 15 screws from the plenum chamber top to complete its removal. After removing the top it becomes possible to remove both the blend door assembly from its case and the heater core. Install the device by working in reverse order while applying plain water on coolant hoses when needed.