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Dorman 550-028 Concave Steel Cup Expansion Plug 2 In., Height 2.000 In. Compatible with Select Chevrolet/GMC Models, 10 Pack

4.7 (3) Write Review
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$10.12

$ 4 .99 $4.99

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. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet C10 Pickup: 1961, 1962] - [Chevrolet C20 Pickup: 1961, 1962] - [Chevrolet C30 Pickup: 1961, 1962] - [Chevrolet K10 Pickup: 1961, 1962] - [Chevrolet K20 Pickup: 1961, 1962] - [Chevrolet P10 Series: 1962] - [Chevrolet P20 Series: 1961] - [Chevrolet P30 Series: 1961] - [Chevrolet Suburban: 1961, 1962] - [Chevrolet Truck: 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1960] - [GMC 1000 Series: 1961, 1962] - [GMC 1500 Series: 1961, 1962] - [GMC 2500 Series: 1961, 1962] - [GMC PM151: 1955, 1956, 1957, 1958, 1959] - [GMC PM152: 1954, 1955, 1957, 1958, 1959] - [GMC PM153: 1955, 1957, 1959] - [GMC PM251: 1956, 1958, 1959] - [GMC PM252: 1955, 1958] - [GMC PM253: 1955, 1958] - [GMC PV1000: 1960] - [GMC Truck: 1954, 1955, 1956, 1957, 1958, 1959, 1960] - [GMC V3000 Forward Control: 1961, 1962]


Linda Stuchal
Reviewed in the United States on January 25, 2024
I have no problem with product itself. The package arrived damaged and only 2 pieces out of 20 that should have been included were in it. The way it was packaged was the problem.
Adam Pilbeam
Reviewed in the United States on August 15, 2019
I purchased this to replace the expansion plug in my 1940 Farmall A. The repair requires splitting the tractor and removing the flywheel. I put a bead of high temperature silicone gasket material in the shoulder of the hole, since there was some corrosion I wanted to ensure a good seal.I then set the new plug in place and gave it a couple of good whacks with the hammer to seat it; I've had no issues with leaking. It was also a great opportunity to clean the crud out of the coolant channels in my engine block!
Paul M. Appleby
Reviewed in the United States on February 15, 2017
Fit perfectly.