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Dorman 555-030 Steel Cup Expansion Plug 1-5/8 In., Height 0.500 Compatible with Select Models, 10 Pack

Free shipping on orders over $29.99

$13.96

$ 6 .99 $6.99

In Stock

About this item

  • 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
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool


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.


Kenneth Mahurien
2025-09-01 12:18:31
Fits perfectly
Wizard
2025-07-23 12:50:28
Worked great for an art project seems like quality product
Chad
2025-06-26 16:17:21
These worl exactly as they should. They plug holes just fine.
Michael Cast
2025-04-22 18:57:03
I've ignored this request for a review three times because, I didn't want to become involved in a dispute over the misuse of these expansion cups being used as a means to manufacturer an illegal modification for weapons. Because a few people brake the law, we law abiding citizens cannot use this and similar products for a completely legal solvent filter. WORTH MENTIONING: Firstly solvent is VERY EXPENSIVE, and without a way to filter metal, hardened powder residue, and grime out of the solvent, the expensive cleaner is wasted (unless one can afford another VERY EXPENSIVE item called an Ultrasonic cleaner. Either way costs too much. But a simple filter does wonders... What a shame; a few people ruins things for everyone. These expansion cups were not suitable for my purposes. I found a simple fuel filter that works fine, but it becomes filthy after just one or two uses, so another filter is required. BS! I've decided to just waste solvent to prevent contamination by using dirty solvent, or building something illegal. Ridiculous! BTW, these cups are heavy duty, and good quality for what they are made for.
rguy
2025-03-08 15:47:18
These plugs fit a 1995 GM 4.3L V6 262 engine block with the correct amount of interference fit, and they withstood the force of being pounded into the holes. I used Permatex Thread Sealant on the mating surfaces. I needed eight plugs for the block, so there's two left over.FYI: the camshaft and balance shaft holes at the rear of the block take a larger expansion plug.
OL consumer
2025-03-02 16:50:58
They have sent me the wrong size.Pretty cheap thin metal.DO NOT RECOMMEND IT AT ALL
V. Satamian
2025-02-03 15:43:55
Worked great!
Robert M. Krause
2025-01-05 13:32:32
Item exactly as described. Perfect fit to replace the old expansion plug in my truck engine.
Customer
2024-12-22 16:50:29
Verry good