Replacement Parts


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Sporty, fun and easy to drive, your GMC Sonoma is a versatile, all-around pickup truck. Make sure the interior of your trusty rig is always warm and its windows are fog-free by replacing a malfunctioning heater core with a new GMC Sonoma heater core from AutoZone.

Show of 7  Results
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  • Part Number: 398305
  • Notes:
  • Part Number: 399052
  • Application: Without A/C
  • Notes:
  • Part Number: 394195
  • Notes:
  • Part Number: 398221
  • Application: With A/C
  • Notes:
  • Part Number: 90762
  • Notes:
  • Part Number: 90014
  • Notes: Old body style.
  • Part Number: 98608
  • Application: With A/C
  • Notes:
  •  | Page 1 of 1 |  

Sonoma heater cores are a central part of your truck's cooling system, and they're responsible for the proper functioning of the heater and defroster. If you see a puddle on the passenger-side floor or smell something sweet in your truck's cabin, it's time to get a high-quality heater core replacement for GMC Sonoma. At AutoZone, we take pride in offering you expert advice, friendly service and outstanding values. We carry a wide selection of products for your Sonoma, and they're available for Same Day Store Pickup (in most cases) or Free Shipping on $75 or more when you place an order online.

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Core Parts Policy


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