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OE Quality
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Dorman 555-037 Engine Expansion Plug
| Brand | Dorman 555-037 |
|---|---|
| Describe Type | Cup Type |
| Material | Steel |
| Maximum Diameter | 1.764 |
| Minimum Diameter | 1.752 |
| Package Contents | Expansion Plug |
| Fits | Ford, Mercury, International, Jeep, and Toyota · 62 vehicles |
OE-style fit. Matches the original part's function for straightforward replacement.
Steel construction. Built from quality material for reliable engine sealing.
Cup-type design. A practical engine expansion plug for core applications.
Cross-references 151686R1, 357217S and EPC-106 for the same application. See all 3.
$31.37Free shipping
In stock · usually ships same day before 1pm CST
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Dorman 555-037 Engine Expansion Plug
Dorman 555-037 is a steel cup-type engine expansion plug built to match the fit and function of the original plug on specified vehicles. Its 1.752 to 1.764 inch diameter range supports a precise seal in the engine block, helping restore proper cooling-system integrity on applications such as Ford Tempo, Mercury Topaz, and Jeep CJ5.
Key Features
- Steel construction for durable engine-block service
- Cup-type design for shallow plug applications
- 1.752 to 1.764 inch diameter range for OE-style fit
- Direct replacement for Dorman 555-037 applications
- Cross-references Monroe Shocks & Struts 172286 and 182286 for the same application
Detailed Description
This engine core plug is engineered as a direct-fit replacement for specified Ford, Mercury, Jeep, and Toyota applications. The steel cup-type design is sized to match original equipment dimensions, making it a practical choice when replacing a leaking or corroded expansion plug in the engine block. Dorman 555-037 is listed for vehicles including 1984-1994 Ford Tempo, 1984-1994 Mercury Topaz, 1986-1990 Ford Taurus, 1986 Mercury Sable, 1959-1971 Jeep CJ5, 1963-1967 Jeep Wagoneer, and 1968-1970 Toyota Corona.
What It Helps Fix
- Coolant leaks from a worn engine core plug
- Corrosion damage at the engine block plug opening
- Poor sealing from an out-of-spec expansion plug
- Cooling-system pressure loss related to plug failure
- Service issues during engine rebuild or block repair
Installation Notes and Tips
Verify the engine block opening diameter before installation and confirm the shallow cup-type design matches the original part. Clean the bore thoroughly so the steel plug seats evenly and seals correctly. For fitment-specific service, use the vehicle listing details for Ford Tempo, Mercury Topaz, and other confirmed applications rather than relying on a universal size match.
Quality Assurance
Dorman designs this expansion plug to match original part fit and function on specified vehicles, using quality materials for reliable performance. The part number 555-037 is also referenced in OE-style service applications under 151686R1 and EPC-106.
This part fits 62 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1994 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1994 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1994 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1993 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1993 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1993 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1992 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1992 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1992 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1991 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1991 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1991 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1990 | Ford | Taurus | 2.5L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1990 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1990 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1990 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1989 | Ford | Taurus | 2.5L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1989 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1989 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1989 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1988 | Ford | Taurus | 2.5L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1988 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1988 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1988 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1987 | Ford | Taurus | 2.5L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1987 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1987 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1987 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1986 | Ford | Taurus | 2.5L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1986 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1986 | Mercury | Sable | 2.5L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1986 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1986 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1985 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1985 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1985 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1984 | Ford | Tempo | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1984 | Mercury | Topaz | — | — | N/A | Shallow Cup Type; 1.765 In.; 4 Required; L4 2.3L (2302cc); Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1984 | Mercury | Topaz | 2.3L | L4 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1971 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1970 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1970 | Toyota | Corona | 1.9L | L4 | N/A | Shallow Cup Type; 1.765 In.; 2 Required; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1969 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1969 | Toyota | Corona | 1.9L | L4 | N/A | Shallow Cup Type; 1.765 In.; 2 Required; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1968 | Jeep | CJ5 | 3.1L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1968 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1968 | Jeep | CJ5 | 3.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1968 | Toyota | Corona | 1.9L | L4 | N/A | Shallow Cup Type; 1.765 In.; 2 Required; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box |
| 1967 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1967 | Jeep | Wagoneer | 3.8L | L6 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1966 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1966 | Jeep | Wagoneer | 3.8L | L6 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1965 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1965 | Jeep | Wagoneer | 3.8L | L6 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1964 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1964 | Jeep | Wagoneer | 3.8L | L6 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1963 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1963 | Jeep | Wagoneer | 3.8L | L6 | N/A | Shallow Cup Type 1.765 In. 4 Required Package Quantity: 10 Boxed Packaging |
| 1962 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1961 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1960 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| 1959 | Jeep | CJ5 | 2.2L | L4 | N/A | 1 Required Engine Expansion Plug; 1.7656 In. Steel Shallow Cup; Boxed; Package Quantity: 10 |
| No rows match your filter. | ||||||
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
151686R1357217SEPC-106