Heater Core
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CARQUEST Heater Core

Part No. 399300 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 3/8 in
Core Material:Aluminum
Depth:2 in
Inlet Connection Type:3/4 in. Quick Connect
Inlet Diameter:3/4 Quick Connect in
Outlet Connection Type:3/4 in. Quick Connect
Outlet Diameter:3/4 Quick Connect in
Tank Material:Aluminum
Thickness:1 in
Width:7 1/4 in

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1 Question | 2 Answers
Displaying question 1
  • Q:

    this fits 2003 6.0 diesel ? how do i start getting the old one out ?
    Asked on 10/30/2012 by trapper from sussex county , va.

    2 answers



      For further assistance regarding Ready-Aire Heater Core - Part No. 399300, please provide the year, make, model and engine size of your vehicle. This information would help us to assist you in a better way.
      For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

      Answered on 10/30/2012 by Aaron from AAP
    • A:

      You-tube video shows you.

      Answered on 11/19/2014 by Jesse from Roanoke, VA
Displaying question 1

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