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Dorman 555-030 Steel Cup Expansion Plug 1-5/8 In., Height 0.500



<p>Dorman Products is the automotive aftermarket&rsquo;s pioneering problem solver, providing more opportunity to individuals and businesses who depend on automotive maintenance.&nbsp; Dorman gives auto repair professionals and vehicle owners greater freedom to fix cars and trucks by focusing on solutions first.</p>

Part Number

03/04/2034 4:48 AM
Sale Price


In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Dorman 555-030 Steel Cup Expansion Plug 1-5/8 In., Height 0.500

No one in the aftermarket wants to be forced to source parts from, or send their customers to, the vehicle dealer. The better alternative is Dorman products, a line of application specific, new to the aftermarket hard parts. Dorman products are often engineered to be better than the original design. Dorman replacement parts are competitively priced. Dorman takes pride in the quality of their products and in your satisfaction with their performance.

  • A quality part backed by a Dorman limited lifetime warranty
  • New products, new solutions, new opportunities
  • Quality materials used
  • Formally dealer only parts now available in the aftermarket

Products specifications

Expansion Plug Material


Feature - Benefit 1

Many sizes available

Feature - Benefit 2

Conveniently available in packs of different quantities

Feature - Benefit 3

Constructed from high quality steel, copper, brass, or rubber

Feature - Benefit 4

Dormans Engine Expansion Plugs are constructed to strict engineering quality standards


1.625 in. diameter.


Sold as a set of 10.

Maximum Diameter


Minimum Diameter


Describe Type

Cup Type



Package Contents

Expansion Plug

very east ck out. Great price. Fastr delivery. Very happy


easy ordering fast response an on time delivery....

Prices are good little slow on the shipping but I hadn't put it in yet.

I'll be a repeat customer

My part was exactly what I wanted at a great price and fast shipping. ill defiantly order from in the future. THANKS GUYS!!!

Got what I was looking for. Excellent.


The shopping experience was great! I ordered an incorrect part.. that's my fault.

They had the lowest price on the web and carried the part I needed. They used amazon. Heck out so it was super easy to place the order and the part shipped right away. Will definitely order from again.

Best price I could find on the web even after paying for shipping! Shipped in a couple of days and great service!

Easy checkout. Easily found the part.

This is a great e-retailer. Best price and fast shipping. I ordered a bike rack. Their price was the lowest I could find, and it was drop shipped from the manufacturer the following day, and arrived in time for me to use it on the weekend. The one criticism I would have is the item description could have been better. From my web research, I knew the model I wanted, but if I was just browsing bike racks on their website, I would have needed more information.

!!!Thank you!!!

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