Dorman 555-017 Engine Expansion Plug
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Dorman

Dorman 555-017 Engine Expansion Plug

Brand Dorman 555-017
Describe Type Cup Type
Material Steel
Maximum Diameter 1.013
Minimum Diameter 1.002
Package Contents Expansion Plug
Fits MG

OE-style fit. Matches the original part's fit and function on specified vehicles.

Steel construction. Built from quality steel for reliable performance.

Cup type design. A practical engine expansion plug for sealing the core opening.

Cross-references Gates 31560, 22537069 and C168623 for the same application. See all 4.

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Dorman 555-017 Engine Expansion Plug

Dorman 555-017 is a steel cup-type engine expansion plug built to match the fit and function of the original core plug on specified vehicles. It is made from quality materials for reliable engine sealing and service life.

  • Steel construction for durability in engine block applications
  • Cup-type design for a direct replacement style fit
  • Maximum diameter: 1.013 in.; minimum diameter: 1.002 in.
  • Engine core plug for sealing coolant passages in the engine block
  • Part number 555-017 for OE-style replacement selection

Application Details

Compatible with specified vehicle applications that use a 1.002-1.013 inch cup-type engine expansion plug. Use this Dorman 555-017 core plug when replacing a worn, leaking, or corroded engine block plug on the correct make and model. This part cross-references Gates 31560 for the same application.

What It Helps Address

  • Coolant seepage at a worn engine block plug
  • Corrosion damage on an original expansion plug
  • Loss of sealing at the engine core plug opening
  • Service replacement for a damaged cup-type plug

Installation Notes

Verify the plug diameter and cup-type design before installation. Clean the bore thoroughly, inspect the sealing surface for pitting or debris, and install using the correct driver or seating tool for an even fit. Confirm the replacement matches the original engine block opening before final assembly.

Quality Assurance

Dorman designs this engine expansion plug to match original part fit and function on specified vehicles, using steel construction for dependable performance in engine hardware service.

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gates — 3156022537069C168623EPC-111