1981 Buick Century Freeze and Expansion Plugs
Keep Your 1981 Buick Century in Top Shape with Quality Freeze and Expansion Plugs
Whether you’re repairing or upgrading your Freeze and Expansion Plug, using high-quality parts is key to keeping your 1981 Buick Century looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Expansion Plugs, Steel Freeze Plugs, and Expansion Plug – Pipes. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Top-Rated Freeze and Expansion Plugs from Trusted Brands
Looking for a reliable Freeze and Expansion Plug? We’ve got you covered with options from brands you know and trust like Dorman. For example, Dorman Freeze and Expansion Plugs start at just $1.29 with an average 4.2 star rating. With over 78 reviews and a solid 4.4 star average, you can shop with confidence knowing other Buick Century owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1981 Buick Century Freeze and Expansion Plug at Advance Auto Parts is around $5.68, with a range that starts at $0.55 and goes up to $17.99. With 23 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Dorman Rubber Expansion Plug 1-1/2 In. – Size Range 1-1/2 In. – 1-5/8 In. (Sold by each), 570-009, Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.480, 362650.1, and Dorman Rubber Expansion Plug 1-5/8 In. – Size Range 1-5/8 In. – 1-3/4 In. (Sold by each), 570-010 start at just $3.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Freeze and Expansion Plug, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 1981 Buick Century in peak condition, inside and out.
Find Your Specific 1981 Buick Century Freeze and Expansion Plugs
Looking for the perfect Freeze and Expansion Plug for your 1981 Buick Century? You’re in the right place. Below, you’ll find links to various types of Freeze and Expansion Plugs that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Freeze and Expansion Plugs, ensuring durability and a precise fit for your Buick Century. Whether you’re driving a 1981 model or another popular model year like
1994,
1995,
1996,
2000,
2001,
2002,
2003,
2004, and
2005, we’ve got you covered. Purchasing Freeze and Expansion Plugs from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Freeze and Expansion Plugs that fit your vehicle.
Essential 1981 Buick Century Freeze and Expansion Plugs
Dorman – Dorman Rubber Expansion Plug 1-1/4 In. – Size Range 1-1/4 In. – 1-3/8 In. (Sold by each), 570-007 (Part No.570-007)
from
$13.99
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.
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Dorman – Dorman Rubber Expansion Plug 1 In. – Size Range 1 In. – 1-1/8 In. (Sold by each), 570-005 (Part No.570-005)
from
$4.99
This engine oil galley 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.
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Dorman – Help – Dorman – Help Rubber Expansion Plug 1 In. – Size Range 1 In. – 1-1/8 In., 02600 (Part No.02600)
from
$7.99
This engine oil galley 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.
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Dorman – Dorman Rubber Expansion Plug 2-1/4 In. – Size Range 2-1/4 In. – 2-3/8 In. (Sold by each), 570-017 (Part No.570-017)
from
$9.99
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.
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Dorman – Dorman Rubber Expansion Plug 1-7/8 In. – Size Range 1-7/8 In. – 2 In. (Sold by each), 570-012 (Part No.570-012)
from
$8.99
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.
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Dorman – Dorman Rubber Expansion Plug 1-1/2 In. – Size Range 1-1/2 In. – 1-5/8 In. (Sold by each), 570-009 (Part No.570-009)
from
$14.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 41.5mm, Height 0.536 (Sold by each), 555-087 (Part No.555-087)
from
$1.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 42.3mm, Height 0.500 (Sold by each), 555-110 (Part No.555-110)
from
$1.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-1/2 In., Height 0.220 (Sold by each), 555-077 (Part No.555-077)
from
$2.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-7/32 In., Height 0.500 (Sold by each), 555-022 (Part No.555-022)
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-1/2 In., Height 0.480 (Sold by each), 555-028 (Part No.555-028)
from
$3.79
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.
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Dorman – Dorman Steel Cup Expansion Plug 2-3/32 In., Height 0.530 (Sold by each), 555-085 (Part No.555-085)
from
$2.99
This engine camshaft 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.
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Dorman – Dorman Pipe Plug C.S. Hex 1/8-27 Npt X 5/16 In. (Sold by each), 090-046 (Part No.090-046)
from
$2.99
This engine cylinder head 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.
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Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 34.3mm, Height 0.497, 362765.1 (Part No.362765.1)
from
$1.99
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.
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Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 1 In., SC, Height 0.250, 362633.1 (Part No.362633.1)
from
$3.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-9/16 In., Height 0.380 (Sold by each), 555-029 (Part No.555-029)
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.
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Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.220, 362652.1 (Part No.362652.1)
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.
See More
Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.480, 362650.1 (Part No.362650.1)
from
$3.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 7/8 In., Height 0.340 (Sold by each), 555-014 (Part No.555-014)
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.
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Dorman – Dorman Pipe Plug-Square Head-3/8 In. Mnpt, 785-072 (Part No.785-072)
from
$2.99
This pipe plug matches the original equipment plug for diameter, thread pitch and head type to ensure a reliable repair. Made of corrosion-resistant material, it has been engineered for leak-free performance and a Length service life.
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Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Pipe Fitting-Pipe Plug-Hex Head-1/4 In. MNPT, 321214.1 (Part No.321214.1)
from
$1.99
Our Pipe Plugs are manufactured with a high corrosion resistance for long-lasting performance. They’re conveniently available in packs of varying quantities.
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Dorman – Dorman Brass Pipe Plug – Square Head – 3/8 In. MNPT, 785-072D (Part No.785-072D)
from
$5.29
This pipe plug matches the original equipment plug for diameter, thread pitch and head type to ensure a reliable repair. Made of corrosion-resistant material, it has been engineered for leak-free performance and a Length service life.
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Popular 1981 Buick Century Freeze and Expansion Plugs Categories
Most Popular Expansion Plugs for 1981 Buick Centuries
Enhance your 1981 Buick Century with one of the 13 Expansion Plugs we have in stock, starting at just $1.49.
Dorman – Dorman Brass Expansion Plug Kit, 15 Expansion Plugs, 5 Pipe Plugs, 567-001 (Part No.567-001)
from
$17.99
The plugs in this engine expansion plug kit are designed to match the original parts on specified vehicles. Made of quality materials, this kit components are engineered for reliable performance and durability.
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Dorman – Dorman Steel Expansion Plug Kit, 12 Expansion Plugs, 5 Pipe Plugs, 02650 (Part No.02650)
from
$14.49
The plugs in this engine expansion plug kit are designed to match the original parts on specified vehicles. Made of quality materials, this kit components are engineered for reliable performance and durability.
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Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-5/8 In., Height 0.500, 362657.1 (Part No.362657.1)
from
$2.99
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.
See More
Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-9/16 In., Height 0.380, 362518.1 (Part No.362518.1)
from
$3.99
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.
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Dorman – Dorman Rubber Expansion Plug 1-1/2 In. – Size Range 1-1/2 In. – 1-5/8 In. (Sold by each), 570-009 (Part No.570-009)
from
$14.99
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.
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Dorman – Dorman Rubber Expansion Plug 1-5/8 In. – Size Range 1-5/8 In. – 1-3/4 In. (Sold by each), 570-010 (Part No.570-010)
from
$13.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-1/2 In., Height 0.220 (Sold by each), 555-077 (Part No.555-077)
from
$2.99
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.
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Dorman – Dorman Steel Expansion Plug Kit, 15 Expansion Plugs, 5 Pipe Plugs, 557-001 (Part No.557-001)
from
$12.99
The plugs in this engine expansion plug kit are designed to match the original parts on specified vehicles. Made of quality materials, this kit components are engineered for reliable performance and durability.
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Dorman – Dorman Rubber Expansion Plug 7/8 In. – Size Range 7/8 In. – 1 In. (Sold by each), 570-004 (Part No.570-004)
from
$11.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-1/2 In., Height 0.220, 555-077.1 (Part No.555-077.1)
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-1/8 In., Height 0.505 (Sold by each), 555-019 (Part No.555-019)
from
$1.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-5/8 In., Height 0.500, 555-030.1 (Part No.555-030.1)
from
$3.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-7/32 In., Height 0.500 (Sold by each), 555-022 (Part No.555-022)
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.
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Best-Selling 1981 Buick Century Steel Freeze Plugs
Upgrade your Century with one of our 3 best-selling Steel Freeze Plugs, earning an average 5 stars rating across 3 reviews.
Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.220, 362652.1 (Part No.362652.1)
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.
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Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.480, 362650.1 (Part No.362650.1)
from
$3.99
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.
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Dorman – Dorman Steel Cup Expansion Plug 1-9/16 In., Height 0.380 (Sold by each), 555-029 (Part No.555-029)
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.
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Top-Quality Expansion Plug – Pipes for 1981 Buick Centuries
Choose a high-quality OEM or aftermarket Expansion Plug – Pipe for Buick Centuries and enjoy top-notch performance from $1.99.
Dorman – Dorman Brass Pipe Plug – Square Head – 3/8 In. MNPT, 785-072D (Part No.785-072D)
from
$5.29
This pipe plug matches the original equipment plug for diameter, thread pitch and head type to ensure a reliable repair. Made of corrosion-resistant material, it has been engineered for leak-free performance and a Length service life.
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Dorman – Pik-a-Nut – Dorman – Pik-a-Nut Pipe Fitting-Pipe Plug-Hex Head-1/4 In. MNPT, 321214.1 (Part No.321214.1)
from
$1.99
Our Pipe Plugs are manufactured with a high corrosion resistance for long-lasting performance. They’re conveniently available in packs of varying quantities.
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Dorman – Dorman Pipe Plug-Square Head-3/8 In. Mnpt, 785-072 (Part No.785-072)
from
$2.99
This pipe plug matches the original equipment plug for diameter, thread pitch and head type to ensure a reliable repair. Made of corrosion-resistant material, it has been engineered for leak-free performance and a Length service life.
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Top Picks for 1981 Buick Century Cylinder Head Expansion Plugs
Invest in one of our 2 durable Cylinder Head Expansion Plugs for your 1981 Buick, knowing you’re getting trusted brands and expert craftsmanship.
Dorman – Dorman Steel Cup Expansion Plug 1-1/2 In., Height 0.480 (Sold by each), 555-028 (Part No.555-028)
from
$3.79
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.
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Dorman – Dorman Steel Cup Expansion Plug 2-3/32 In., Height 0.530 (Sold by each), 555-085 (Part No.555-085)
from
$2.99
This engine camshaft 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.
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Rubber Freeze Plugs for 1981 Buick Centuries
Make a smart move for your 1981 Buick Century with products all priced from $6.99 to $13.99.
Dorman – Dorman Rubber Expansion Plug 1-1/8 In. – Size Range 1-1/8 In. – 1-1/4 In. (Sold by each), 570-006 (Part No.570-006)
from
$6.99
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.
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Dorman – Dorman Rubber Expansion Plug 1-1/4 In. – Size Range 1-1/4 In. – 1-3/8 In. (Sold by each), 570-007 (Part No.570-007)
from
$13.99
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.
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Top-Rated Freeze and Expansion Plug Brands For Your 1981 Buick Century
When it comes to finding the perfect Freeze and Expansion Plug for your 1981 Buick Century, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 1 trusted brands. We carry the most popular Freeze and Expansion Plug brands including Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $1.29. Purchasing a Freeze and Expansion Plug from us here at Advance Auto Parts is a smart move for both you and your 1981 Buick Century, providing peace of mind with parts that meet or exceed OEM standards.
Popular Dorman 1981 Buick Century Freeze and Expansion Plugs
If you’re looking for a top-quality Freeze and Expansion Plug for your 1981 Buick Century, Advance Auto Parts has exactly what you need with our selection of Dorman Freeze and Expansion Plugs. We have 3 Dorman Freeze and Expansion Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $1.29 and an average cost of $11.26, you’ll find the perfect Freeze and Expansion Plug for your needs and budget. Dorman Freeze and Expansion Plugs for the 1981 Buick Century come highly rated, with over 8 customer reviews and an impressive average rating of 4.2 stars. Choosing a Dorman Freeze and Expansion Plug from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$1.29
(3)
Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.220, 362652.1
“worked out great. no problems”
from
$14.49
(4)
Dorman Steel Expansion Plug Kit, 12 Expansion Plugs, 5 Pipe Plugs, 02650
“All fit with no issues, quality appears to be very good. Couldn’t believe the low price and availability. I thought I’d have to order them and wait an”
from
$17.99
(1)
Dorman Brass Expansion Plug Kit, 15 Expansion Plugs, 5 Pipe Plugs, 567-001
“Fat perfect”
FAQs for 1981 Buick Century Freeze and Expansion Plugs
What are the best-selling Freeze and Expansion Plugs for 1981 Buick Centuries?
Out of 23 Freeze and Expansion Plugs that fit 1981 Buick Centuries, the following parts are the top sellers:
- Dorman Rubber Expansion Plug 1-1/2 In. – Size Range 1-1/2 In. – 1-5/8 In. (Sold by each), 570-009 (16140204) – $14.99
- Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.480, 362650.1 (3492206) – $3.99
- Dorman Rubber Expansion Plug 1-5/8 In. – Size Range 1-5/8 In. – 1-3/4 In. (Sold by each), 570-010 (16140217) – $13.99
What’s the price range for 1981 Buick Century Freeze and Expansion Plugs?
The prices of Freeze and Expansion Plugs for the 1981 Buick Century range from $0.55 up to $17.99 for the most premium parts.
What is the average price of a Freeze and Expansion Plug for a 1981 Buick Century?
The average price for Freeze and Expansion Plugs for the 1981 Buick Century is $5.68. Keep in mind the variety of part types within our Freeze and Expansion Plug category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Freeze and Expansion Plugs for other Buick Century model years?
What are the cheapest Freeze and Expansion Plugs for my 1981 Buick Century?
The cheapest 1981 Buick Century Freeze and Expansion Plugs we carry are:
- Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-1/2 In., Height 0.220, 362652.1 (3492249) – $1.29
- Dorman Steel Cup Expansion Plug 1-7/32 In., Height 0.500 (Sold by each), 555-022 (22140593) – $1.49
- Dorman Steel Cup Expansion Plug 1-1/8 In., Height 0.505 (Sold by each), 555-019 (16140180) – $1.99
- Dorman – Pik-a-Nut Pipe Fitting-Pipe Plug-Hex Head-1/4 In. MNPT, 321214.1 (9075151) – $1.99
- Dorman Steel Cup Expansion Plug 1-1/2 In., Height 0.220, 555-077.1 (22972463) – $2.29
Does Advance Auto Parts sell Freeze and Expansion Plugs for any other 1981 Buick models?
Yes. We stock Freeze and Expansion Plugs for 5 other popular 1981 Buick models. Some of the most popular are 1981 Regal Freeze and Expansion Plugs, 1981 LeSabre Freeze and Expansion Plugs, 1981 Skylark Freeze and Expansion Plugs, 1981 Riviera Freeze and Expansion Plugs, and 1981 Electra Freeze and Expansion Plugs.
What are the top-rated Freeze and Expansion Plugs that fit the 1981 Buick Century?
Based on 78 reviews by customers, our 1981 Buick Century Freeze and Expansion Plugs have an average customer rating of 4.4 stars. These are the highest-rated categories of Freeze and Expansion Plugs for the 1981 Buick Century and their top-rated products:
- Expansion Plugs
- Dorman Brass Expansion Plug Kit, 15 Expansion Plugs, 5 Pipe Plugs, 567-001 (22148412) – $17.99
- Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-5/8 In., Height 0.500, 362657.1 (3492265) – $2.99
- Dorman – Pik-a-Nut Steel Cup Expansion Plug 1-9/16 In., Height 0.380, 362518.1 (3492192) – $3.99
- Steel Freeze Plugs
What types of Freeze and Expansion Plugs do you sell for my 1981 Buick Century?
As of 8/2/26, these are some of the most in-demand types of Freeze and Expansion Plugs for a 1981 Buick Century:
Can I get help with 1981 Buick Century Freeze and Expansion Plug orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Buick Freeze and Expansion Plugs and more.
What is your return policy for Buick Century Freeze and Expansion Plugs?
Advance Auto Parts keeps returns simple. For new Buick Century Freeze and Expansion Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.