Dorman 555-076 Engine Expansion Plug

Durable Steel Engine Core Plug for Select Cadillac, Dodge, Jeep, and Plymouth Models

The Dorman 555-076 engine core plug is designed to provide reliable sealing for engine block openings in various Cadillac, Dodge, Jeep, and Plymouth vehicles. Constructed from steel with precise diameter specifications, this cup-type expansion plug ensures a secure fit and long-lasting performance.

• Made from durable steel material for strength and corrosion resistance
• Cup-type design for effective sealing of engine block core holes
• Maximum diameter: 2.143 inches; Minimum diameter: 2.132 inches for precise fitment
• Compatible with multiple models including Cadillac DeVille, Jeep Grand Cherokee, Dodge Dakota, and Plymouth Acclaim
• Packaged as a single expansion plug for easy replacement

Product Details and Specifications

The Dorman 555-076 engine core plug is engineered to meet OEM standards for sealing engine block core holes. Its steel construction provides durability under high temperature and pressure conditions commonly found in engine compartments. The cup-type design allows the plug to expand and create a tight seal, preventing coolant or oil leaks. With a maximum diameter of 2.143 inches and a minimum diameter of 2.132 inches, this plug fits securely in the designated engine block openings of various vehicles.

Compatible Vehicles and Applications

This engine core plug is compatible with a range of vehicles, including Cadillac models such as the DeVille, Eldorado, and Seville; Dodge models like the Dakota and Commercial Chassis; Jeep models including the Cherokee, Grand Cherokee, Wrangler, and TJ; as well as Plymouth models like the Acclaim and Spirit. The Dorman 555-076 is suitable for use in both passenger cars and light trucks, ensuring proper sealing in engine blocks across these applications.

Common Uses and Problem Resolution

• Sealing engine block core holes to prevent coolant leaks
• Replacing worn or corroded core plugs to maintain engine integrity
• Preventing oil leaks from engine block openings
• Restoring proper engine cooling system pressure
• Addressing engine overheating issues related to coolant loss

Installation Notes and Tips

Before installing the Dorman 555-076 engine core plug, ensure the engine block opening is clean and free of debris or corrosion. Use appropriate tools to press the plug evenly into the core hole without damaging the plug or engine block. Verify the plug is seated flush and securely to prevent leaks. It is recommended to inspect surrounding areas for any additional wear or damage during replacement.

Quality Assurance and Warranty

Dorman engine core plugs are manufactured to meet industry standards for fit and function. The 555-076 part number undergoes quality control checks to ensure consistent dimensions and material integrity. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to provide confidence in product reliability.