1966 GMC 3500 Expansion Plugs

Your 1966 GMC 3500 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Expansion Plugs you desperately need.

We currently carry 2 Expansion Plugs to choose from for your 1966 GMC 3500, and our inventory prices range from as little as $1.29 up to $3.99.

On top of low prices, Advance Auto Parts offers 1 different trusted brands of Expansion Plugs for the 1966 GMC 3500. We only sell parts from trusted brands like Dorman so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Expansion Plugs stock in-person!

Expansion Plugs for Your 1966 GMC 3500

Dorman – Rubber Expansion Plug 7/8 In. – Size Range 7/8 In. – 1 In. (sold by each) (Part No.570-004)

Rubber Expansion Plug 7/8 In. - Size Range 7/8 In. - 1 In. (sold by each)

from

$3.99
This engine intake manifold expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine intake manifold expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Steel Cup Expansion Plug 13.70mm, Height 0.180 (sold by each) (Part No.555-007)

Steel Cup Expansion Plug 13.70mm, Height 0.180 (sold by each)

from

$1.29
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More