Dorman 555-098 Engine Expansion Plug

Overview of Dorman Engine Core Plug 555-098

The Dorman 555-098 engine core plug is a steel cup type expansion plug designed for reliable sealing in engine blocks. This part is compatible with various Jeep and Toyota models, including the Cherokee, Wagoneer, Celica, and Corolla, ensuring a precise fit and durable performance.

• Constructed from durable steel material for long-lasting use
• Cup type design for effective sealing in engine block openings
• Maximum diameter of 1.792 inches and minimum diameter of 1.774 inches for accurate fitment
• Compatible with Jeep Cherokee, Wagoneer, Comanche and Toyota Celica, Corolla, Corona, Pickup, Starlet models
• Sold as a single expansion plug for engine core sealing

Detailed Product Description

The Dorman 555-098 engine core plug is engineered from steel to provide a robust and corrosion-resistant seal within the engine block. Its cup type design allows it to expand securely into the core hole, preventing coolant or oil leaks. With precise dimensions—ranging from a minimum diameter of 1.774 inches to a maximum diameter of 1.792 inches—this plug ensures a tight fit in the engine block openings of select Jeep and Toyota vehicles. This part is essential for maintaining engine integrity by sealing core holes left from the manufacturing process or repairs.

Compatible Vehicles and Applications

This engine core plug is compatible with a range of Jeep and Toyota models, including:

• Jeep Cherokee, Wagoneer, Comanche
• Toyota Celica, Corolla, Corona, Pickup, Starlet

Using the correct core plug like the Dorman 555-098 helps maintain proper engine function and prevents fluid leaks in these specific vehicles.

Common Issues Addressed by Engine Core Plugs

• Sealing core holes in engine blocks after manufacturing or repair
• Preventing coolant leaks that can cause engine overheating
• Stopping oil leaks that may lead to engine damage
• Maintaining engine block pressure and fluid containment
• Reducing risk of corrosion inside the engine block

Installation Notes and Tips

• Ensure the core hole is clean and free of debris before installation
• Use appropriate tools to press the plug evenly into the engine block
• Verify the plug diameter matches the engine block specifications (1.774" to 1.792")
• Inspect the plug for damage or deformation before installation
• Consult vehicle service manual for torque and installation procedures

Quality Assurance and Warranty

Dorman manufactures the 555-098 engine core plug to meet industry standards for durability and fitment. Made from steel, this plug offers resistance to corrosion and wear. While specific warranty details may vary, Dorman parts typically come with a limited warranty covering defects in material and workmanship. Always verify warranty terms with the product documentation or supplier.