Heater Core
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CARQUEST Heater Core

Part No. 398314 Warranty Details  

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Please note: Advance Auto Parts is proud to carry comparable exact-fit parts from multiple vendors, as such, the item you receive may be one of two quality brands. Both brands meet the same fitment requirements and are equal in their performance and specifications.

Our heaters are designed and tested to meet or exceed OE specifications for form, fit, and function. Using premium quality materials and a clear focus on the highest heat transfer performance possible, our engineers have designed this heater to perform at the highest standards to ensure a warm cab environment during those cold winter months.
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Core Height:7 1/8 in
Depth:2 in
Inlet Connection Type:3/4 in. Quick Connect
Inlet Diameter:3/4 in
Outlet Connection Type:5/8 in. Quick Connect
Outlet Diameter:5/8 in
Thickness:2 in
Width:7 1/4 in


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(based on 1 review)

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Reviewed by 1 customer

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(3 of 5 customers found this review helpful)


Fits fine!


from san angelo, tx

About Me Casual Driver

Verified Buyer
Helpful Reviewer

Comments about CARQUEST Heater Core:

Unlike the oem core I took out, the replacement core has swiveling inlets that make it easier to install.

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Do you have questions about this product?


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1 Question | 1 Answer
Displaying question 1
  • Q:

    how to pull the lines apart
    Asked on 1/18/2011 by macck from new orleans,La.

    1 answer



      Remove the heater core and the hoses from the heater core pipes by pressing
      the tabs together with pliers. Clamp the heater core hoses using the hose clamp pliers and pinching off the hoses.

      Answered on 4/12/2011 by David the Dynamite Parts Guy from AAP
Displaying question 1

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