How to Safely Service and Repair a Heater Core on 2003 Dodge Durango?

Before people service or repair the heater core, they should isolate the battery negative (ground) cable on air bag-equipped vehicles to disable the air bag system, then they should wait two minutes to give the system capacitor time to discharge. Drain the coolant after that and remove the housing for the heater-A/C from the vehicle. Open up the HVAC area and lift the heater core out of the heater-A/C housing. During installation, slide the heater core into the bottom of the heater-A/C housing, put all the pieces together in the housing and reinstall it in the vehicle. Last, top off the coolant in the system.

OEM 2003 Dodge Durango Heater Core

HVAC Heater Core

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2 Heater Cores found

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2003 Dodge Durango Heater Core, Rear Part Number: 5019641AA
$108.34 MSRP: $137.34
You Save: $29.00 (22%)
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Product Specifications
- Other Name: Core - Heater; HVAC Heater Core, Rear; Core Heater; HVAC Heater Core
- Position: Rear
- Item Weight: 2.20 Pounds
- Item Dimensions: 30.6 x 8.2 x 8.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5019641AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
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Fits the following 2003 Dodge Durango Submodels:
- Base, R/T, SLT, SLT Plus, SXT, Sport | 8 Cyl 4.7 L GAS, 8 Cyl 5.9 L GAS
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2003 Dodge Durango Heater Core, Front Part Number: 5019695AA
$296.14 MSRP: $452.00
You Save: $155.86 (35%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Heater Kit - Heater Core Assembly; HVAC Heater Core, Front; Heater Assembly; Includes 45-52; HVAC Heater Core
- Position: Front
- Replaces: 4885749AA
- Item Weight: 2.60 Pounds
- Item Dimensions: 15.6 x 8.1 x 4.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5019695AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2003 Dodge Durango Submodels:
- Base, R/T, SLT, SLT Plus, SXT, Sport | 8 Cyl 4.7 L GAS, 8 Cyl 5.9 L GAS

2003 Dodge Durango Heater Core Parts and Q&A

Q: How to Safely Service and Repair a Heater Core on 2003 Dodge Durango?
A: Before people service or repair the heater core, they should isolate the battery negative (ground) cable on air bag-equipped vehicles to disable the air bag system, then they should wait two minutes to give the system capacitor time to discharge. Drain the coolant after that and remove the housing for the heater-A/C from the vehicle. Open up the HVAC area and lift the heater core out of the heater-A/C housing. During installation, slide the heater core into the bottom of the heater-A/C housing, put all the pieces together in the housing and reinstall it in the vehicle. Last, top off the coolant in the system.