How to service the auxiliary heater core on Mercury Monterey?

In order to service the auxiliary heater core, leak test (as necessary), and remove LH quarter trim panel and parts sequentially. Place core tubes of position heaters above a drain pan in the process of removing hose clamps. Take off the hoses, and repeat the process again, installing and filling the cooling system.

OEM Mercury Monterey Heater Core

HVAC Heater Core

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2 Heater Cores found

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Mercury Monterey Heater Core, Front Part Number: H2MZ-18476-S
$83.63 MSRP: $115.69
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Product Specifications
- Other Name: Heater Assembly - Less Radiator; HVAC Heater Core, Front; HVAC Heater Core
- Position: Front
- Replaces: 4F2Z-18476-AA, HC-38
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2007 Mercury Monterey | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
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Mercury Monterey 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:
- 2004-2007 Mercury Monterey | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS

Mercury Monterey Heater Core

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Mercury Monterey Heater Core Parts and Q&A

Heater Core, Rear
H2MZ-18476-X
Q: How to service the auxiliary heater core on Mercury Monterey?
A: In order to service the auxiliary heater core, leak test (as necessary), and remove LH quarter trim panel and parts sequentially. Place core tubes of position heaters above a drain pan in the process of removing hose clamps. Take off the hoses, and repeat the process again, installing and filling the cooling system.