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Tell Us More About Your GMC Sonoma. View all models

AutoZone carries hundreds of thousands of parts and accessories.

Select your Year, Make, Model and Engine to find those that fit your vehicle.

Your tough and capable pickup can stand the test of time, and you require the same level of performance from your new GMC Sonoma radiator cap. Radiator caps are easy to install and relatively inexpensive, so check out what AutoZone has to offer.

Show of 11  Results
  •  | Page 1 of 1 |  
  • Part Number: 7816
  • Notes: Safety Lever
    Radiator cap. Relief pressure: 16 lb.
  • Part Number: 7616
  • Notes: Standard
    Relief pressure: 16 lbs.
  • Part Number: 2471S
  • Notes: Silver
    Thermocap(TM) OEM Replacement with thermometer built in 16 psi.
  • Part Number: 7031
  • Notes: Standard
    Reservoir Cap
  • Part Number: 7716
  • Notes: Safety Lever
    Relief pressure: 16 lbs.
  • Part Number: 7016
  • Notes: Standard
    Relief pressure: 16 lbs.
  • Part Number: 15060681
  • Notes: GM Original Equip.
    Engine coolant recovery tank cap. Screw on cap
  • Part Number: RC95
  • Notes: GM Original Equip.
    Radiator cap. 15 PSI
  • Part Number: RC27
  • Notes: Professional
    Radiator cap. With handle
  • Part Number: 82590
  • Notes: Coolant recovery tank cap
  • Part Number: 82594
  • Notes: Coolant Recovery Tank Cap. Without vented cap.
  •  | Page 1 of 1 |  

When your old radiator cap takes on damage, breaks or gets lost, find a new one at AutoZone that's easy to install – no matter your experience level. Sonoma radiator caps form tight seals and include built-in pressure valves to keep your radiator from overheating. The new cap is removable, giving you access to add or check your coolant. Order your parts online or select AutoZone's Same Day Store Pickup.

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