Dorman 555-098 Engine Expansion Plug
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Dorman

Dorman 555-098 Engine Expansion Plug

Brand Dorman 555-098
Describe Type Cup Type
Material Steel
Maximum Diameter 1.792
Minimum Diameter 1.774
Package Contents Expansion Plug
Fits Jeep and Toyota · 39 vehicles

OE direct replacement. Matches the fit and function of the original engine expansion plug.

Steel construction. Built from quality material for reliable performance.

Cup type design. A practical engine core plug style for sealing openings.

Cross-references 261-177, 7703075044 and 9033144500 for the same application. See all 4.

$26.20Free shipping
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Dorman 555-098 Engine Expansion Plug

Dorman 555-098 is a steel cup-type engine expansion plug built to match the fit and function of the original core plug on specified vehicles. It uses quality materials for reliable sealing performance in the engine block.

Key Features

  • Steel construction for durable engine-block service
  • Cup-type design for a direct OE-style fit
  • Engineered to match original part dimensions
  • Maximum diameter: 1.792 in.; minimum diameter: 1.774 in.
  • Used in engine core plug applications for select Toyota and Jeep models

Detailed Description

This Dorman engine expansion plug is designed for vehicles that use a 45 mm cup-style core plug in the engine block. The steel construction helps provide a secure seal where coolant passages are closed off, and the part is shaped to match the original fit and function. Dorman 555-098 is a practical replacement for service work on classic Toyota Corolla, Celica, Corona, and Pickup applications, as well as Jeep Cherokee, Comanche, and Wagoneer models listed in the fitment data. This part cross-references EPC-214 for the same application.

What It Is Used For

  • Replacing a leaking or corroded engine core plug
  • Restoring coolant sealing at the engine block
  • Addressing rust damage in the original expansion plug
  • Repairing a removed or damaged cup-type plug during engine service
  • Supporting maintenance on Toyota Corolla, Celica, Corona, Pickup, and Jeep Cherokee applications

Installation Notes and Tips

Verify the engine block opening size before installation and confirm the cup-type design matches the original plug. Clean the bore thoroughly so the steel plug seats evenly, and inspect the surrounding block surface for corrosion or pitting that could affect sealing. For fitment reference, this part fits 1968-1979 Toyota Corolla, N/A; 1971-1974 Toyota Celica, N/A; 1968-1974 Toyota Corona, N/A; 1970-1974 Toyota Pickup, N/A; 1981-1984 Toyota Starlet, N/A; 1985 Jeep Wagoneer, N/A; 1985-1987 Jeep Cherokee, N/A; and 1986-1987 Jeep Comanche, N/A.

Quality Assurance

Dorman designs this engine expansion plug to match original part fit and function on the specified vehicles. The steel construction and OE-style dimensions support dependable service in engine core plug applications.

This part fits 39 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1987JeepCherokee2.1LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1987JeepComanche2.1LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1986JeepCherokee2.1LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1986JeepComanche2.1LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1985JeepCherokee2.1LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1985JeepWagoneer2.1LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1984ToyotaStarlet1.3LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1983ToyotaStarlet1.3LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1982ToyotaStarlet1.3LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1981ToyotaStarlet1.3LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1979ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1978ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1977ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1976ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1975ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1974ToyotaCelica——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1974ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1974ToyotaCorona——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1974ToyotaPickup——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1973ToyotaCelica——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1973ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1973ToyotaCorona2.0LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1973ToyotaPickup——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1972ToyotaCelica——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1972ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1972ToyotaCorona2.0LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1972ToyotaPickup——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1971ToyotaCelica1.9LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1971ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1971ToyotaCorona——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1971ToyotaPickup——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1970ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1970ToyotaCorona1.9LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1970ToyotaPickup1.9LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1969ToyotaCorolla1.1LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1969ToyotaCorolla1.2LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1969ToyotaCorona1.9LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1968ToyotaCorolla——N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1968ToyotaCorona1.9LL4N/ASteel; 1 Required; 45 mm; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
261-17777030750449033144500EPC-214