Replacement Parts

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You purchased your Toyota 4Runner because it is strong, durable, and rugged. Don't let a malfunctioning heater core threaten to change that. Keep it running the way it was built to run by replacing its Toyota 4Runner heater core at AutoZone today.

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  • Part Number: 399321
  • Warranty: Limited Lifetime
  • Notes: Front
    With rear heater. 7 7/8" tall x 5 1/4" wide.
  • Part Number: 94179
  • Warranty: Limited Lifetime
  • Notes: Front
    Without rear heater. 8 1/2" tall x 6 1/2" wide.
  •  | Page 1 of 1 |  

The most common symptom of a faulty heater core is frequently fogged up windows. If your heater core has been punctured, it leaks coolant and a sweet smell will emanate throughout the cabin. When that happens, turn to AutoZone to get your truck back to its peak performance. We offer replacement 4Runner heater cores and make it convenient for you to get one. Take advantage of Same Day Store Pickup (in most cases) to save time and money. If you have any questions about installation, be sure to speak with our helpful staff and their trustworthy advice.

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ABOUT CORE PARTS

Buy online and return core parts to the store to be refunded the price.
Core Parts Policy

Core return policy

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On Orders $75 or Greater
and free shipping to APO, FPO, DPO addresses.
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Free shipping policy

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Same day store pickup
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