1984 Pontiac Firebird Expansion Plugs

Your 1984 Pontiac Firebird 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 10 Expansion Plugs to choose from for your 1984 Pontiac Firebird, and our inventory prices range from as little as $1.29 up to $16.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Expansion Plugs for the 1984 Pontiac Firebird. We only sell parts from trusted brands like Dorman so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 32 reviews on our Expansion Plugs for the 1984 Pontiac Firebird from previous customers.

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 1984 Pontiac Firebird

Dorman – Rubber Expansion Plug 3/4 In. – Size Range 3/4 In. – 7/8 In. (Part No.02608)

Rubber Expansion Plug 3/4 In. - Size Range 3/4 In. - 7/8 In.

from

$8.29
Our uniquely designed pilot seal expansion plugs ensure a leak-proof fit.

Product Features:
  • Many sizes available
  • Conveniently available in packs of different quantities
  • Constructed from high quality steel, copper, brass, or rubber
  • Dorman’s Engine Expansion Plugs are constructed to strict engineering quality standards
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Dorman – Gm Steel Expansion Plug Kit, 12 Expansion Plugs, 5 Pipe Plugs (Part No.02650)

Gm Steel Expansion Plug Kit, 12 Expansion Plugs, 5 Pipe Plugs

from

$10.79
We offer a comprehensive line of Engine Expansion Plug Kits to cover a range of applications. The kits include all parts necessary for a complete repair.

Product Features:
  • Direct fit kits available (where applicable) for ease of replacement
  • Depending on the application, kits include multiple quantities of the following styles: cup Type, Pilot Seal, Reverse Taper, Concave, Quick-Seal® Rubber and Quick-Seal ® Copper
  • Expansion Plugs also available individually
  • Dorman’s Engine Expansion Plugs are constructed to strict engineering quality standards
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Dorman – Pik-a-Nut – Steel Cup Expansion Plug 1-5/8 In., Height 0.500 (Part No.362657.1)

Steel Cup Expansion Plug 1-5/8 In., Height 0.500

from

$2.29
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
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Dorman – Steel Cup Expansion Plug 34.3mm, Height 0.497 (sold by each) (Part No.555-104)

Steel Cup Expansion Plug 34.3mm, Height 0.497 (sold by each)

from

$1.49
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
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Dorman – Pik-a-Nut – Steel Cup Expansion Plug 34.3mm, Height 0.497 (Part No.362765.1)

Steel Cup Expansion Plug 34.3mm, Height 0.497

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
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Dorman – Steel Cup Expansion Plug 34.3mm, Height 0.497 (Part No.555-104.1)

Steel Cup Expansion Plug 34.3mm, Height 0.497

from

$2.49
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
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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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Sealed Power – BRASS EXP PLUG KIT (Part No.381-8007)

BRASS EXP PLUG KIT

from

$16.99
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Made with brass
  • Resistant to rusting
  • ISO & QS certified manufacturing
  • For applications over 35 years old
  • Meets or exceeds OEM specifications
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Dorman – Steel Cup Expansion Plug 1-5/8 In., Height 0.500 (Part No.555-030.1)

Steel Cup Expansion Plug 1-5/8 In., Height 0.500

from

$2.79
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

Dorman – Steel Cup Expansion Plug 41.5mm, Height 0.536 (sold by each) (Part No.555-087)

Steel Cup Expansion Plug 41.5mm, Height 0.536 (sold by each)

from

$1.49
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

FAQs for 1984 Pontiac Firebird Expansion Plugs

What are the most popular Expansion Plugs for the 1984 Pontiac Firebird?

With 2 brands you can trust, our most popular Expansion Plugs for the 1984 Pontiac Firebird parts are:
Steel Cup Expansion Plug 34.3mm, Height 0.497
from $1.29
This product is not rated
Steel Cup Expansion Plug 34.3mm, Height 0.497
Expansion Plugs

What are the best aftermarket Expansion Plugs for the 1984 Pontiac Firebird?

See what past customers had to say about our highest-rated Expansion Plugs for the 1984 Pontiac Firebird:
Steel Cup Expansion Plug 34.3mm, Height 0.497 (sold by each)
from $1.49
(1)
Steel Cup Expansion Plug 34.3mm, Height 0.497 (sold by each)
“Tight, press fit.”