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The head gasket is a crucial component of your GMC Sierra's engine. It ensures that motor oil and coolant stay separated and creates enough pressure to keep your pistons firing properly. A blown head gasket results in decreased performance and fuel efficiency, and more serious engine damage. AutoZone offers Sierra head gasket sets to keep your truck performing.

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  • Part Number: HS26190PT-2
  • Notes: Head bolts not included. Head bolt replacement recommended. When servicing Displacement-On-Demand solenoids use with Lifter valley cover set MS 96871. PermaDryPlus intake manifold gaskets included. PermaDry molded rubber valve cover gaskets included. Premium valve stem seals included.
  • Part Number: HS26192PT-6
  • Notes: Head bolts not included; head bolt replacement recommended; PermaDry molded rubber valve cover gasket included; Premium valve stem seals included.
  • Part Number: HS54442
  • Notes: Without cylinder head bolts.
  •  | Page 1 of 1 |  

White, milky oil, significant loss of coolant with no visible leaks, engine overheating and white smoke from the exhaust pipe all are symptoms of a faulty head gasket. Solve the problem with a new GMC Sierra head gasket set from AutoZone. Same Day Store Pickup is available to get your parts today. We offer plenty of support along the way with trustworthy advice provided by helpful staff and our Loan-a-Tool Program to fill in any gaps in your toolbox.

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