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OE Quality
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DormanPart #: 555-037
Dorman 555-037 Engine Expansion Plug
⚙️ 62 vehicles fit this part
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mercury, International, Jeep, and Toyota, Tempo, Topaz, Taurus, Sable, Scout II, 150, 200, MS, Travelall, 100, MHC1310, MS1210, 1010, 1110, 1210, 1310, M1100, M1200, M800 Post Office, M800, MA1200, CJ5, CJ6, Commando, DJ5, Jeepster, 1000D, 1100D, 1200D, 1300D, Scout, Corona, 908C, M1400, M800 Navy, Dispatcher, Universal Truck, 1000C, 1100C, 1200C, 1300C, CJ5A, CJ6A, DJ6, Gladiator, J-100, J-2500, J-2600, J-2700, J-2800, J-3500, J-3600, J-3800, Universal, Wagoneer, CJ3, DJ3, F-134, FC150, FC170, J-3700, Truck, FJ3, FJ3A, J-210, J-220, J-230, J-300, J-310, J-320, J-330, Utility Wagon, F4-134, Tornado, Utility, F4, FA-134, Willys, and 475
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Overview of Dorman Engine Core Plug 555-037
The Dorman 555-037 engine core plug is a steel cup type expansion plug designed for reliable sealing in engine blocks. Compatible with various Ford, Jeep, Mercury, and Toyota models, this core plug ensures proper engine maintenance and leak prevention.
- Constructed from durable steel material for long-lasting performance
- Cup type design for secure and effective sealing
- Maximum diameter of 1.764 inches and minimum diameter of 1.752 inches for precise fit
- Compatible with Ford CJ5, Jeep Wagoneer, Mercury Sable, Taurus, Tempo, Topaz, and Toyota Corona
- Sold as a single expansion plug for engine block applications
Detailed Product Description
The Dorman 555-037 engine core plug is engineered to fit specific engine block openings with diameters ranging between 1.752 and 1.764 inches. Its steel construction provides resistance to corrosion and wear, making it suitable for use in demanding engine environments. The cup type design allows the plug to expand and create a tight seal within the engine block, preventing coolant or oil leaks. This part is essential for maintaining engine integrity in vehicles such as the Ford CJ5, Jeep Wagoneer, Mercury Sable, Taurus, Tempo, Topaz, and Toyota Corona.
Common Applications and Problem Solving
- Sealing core holes in engine blocks to prevent coolant leaks
- Replacing worn or corroded expansion plugs in Ford CJ5 and Jeep Wagoneer engines
- Addressing oil seepage issues in Mercury Sable and Taurus engine blocks
- Maintaining proper engine pressure and fluid containment in Toyota Corona and Mercury Tempo
- Ensuring engine block integrity during routine maintenance or rebuilds
Installation Notes and Tips
- Verify the core plug diameter matches the engine block opening (1.752 to 1.764 inches)
- Clean the core hole thoroughly before installation to ensure a proper seal
- Use appropriate tools to press the plug evenly into place without damaging the cup type edges
- Inspect surrounding engine block surfaces for corrosion or damage prior to installation
- Consult vehicle service manuals for torque specifications and installation procedures
Quality Assurance and Warranty
Dorman manufactures the 555-037 engine core plug to meet industry standards for durability and fitment. The steel material and precise dimensions ensure consistent performance in compatible Ford, Jeep, Mercury, and Toyota models. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for complete warranty information.
| Brand | Dorman |
| Part Number | 555-037 |
| Describe Type | Cup Type |
| Material | Steel |
| Maximum Diameter | 1.764 |
| Minimum Diameter | 1.752 |
| Package Contents | Expansion Plug |
This part fits 62 vehicles. Search below:
| 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 |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
151686R1357217SEPC-106
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.