Dorman 555-101 Engine Expansion Plug

Overview of Dorman Engine Core Plug 555-101

The Dorman 555-101 engine core plug is a steel cup-type expansion plug designed for reliable sealing in engine blocks. This part is compatible with various Ford, INFINITI, Nissan, and Toyota models, including the 4Runner, Courier, Pickup, Q45, Sentra, Tacoma, and Tundra.

• Constructed from durable steel material for long-lasting performance
• Cup-type design ensures a secure and effective seal
• Maximum diameter of 0.805 inches and minimum diameter of 0.794 inches for precise fitment
• Sold as a single expansion plug for engine block sealing
• Compatible with multiple vehicle makes and models for versatile use

Detailed Product Description

The Dorman 555-101 engine core plug is engineered from steel to provide a robust and corrosion-resistant seal within the engine block. Its cup-type design allows for expansion and a tight fit, preventing coolant or oil leaks. With a maximum diameter of 0.805 inches and a minimum diameter of 0.794 inches, this plug fits precisely into the designated core holes of compatible engines. This ensures proper sealing and helps maintain engine integrity under operating conditions.

Compatible Vehicles and Applications

This engine core plug is compatible with a range of vehicles, including Ford models like the Courier and Pickup, INFINITI Q45, Nissan Sentra, and Toyota 4Runner, Tacoma, and Tundra. The part number 555-101 is specifically designed to meet the fitment requirements of these vehicles, making it a suitable replacement for worn or damaged core plugs in these engines.

Common Uses and Problem Resolution

• Sealing engine block core holes to prevent coolant leaks
• Replacing corroded or damaged expansion plugs
• Maintaining engine pressure and preventing fluid contamination
• Addressing overheating issues caused by coolant loss
• Ensuring proper engine block integrity during repairs

Installation Notes and Tips

When installing the Dorman 555-101 engine core plug, ensure the engine block surface is clean and free of debris. The plug should be pressed or gently tapped into place using appropriate tools to avoid damage. Verify the plug’s diameter matches the core hole for a secure fit. It is recommended to inspect surrounding areas for corrosion or damage during replacement.

Quality Assurance and Warranty

Dorman manufactures the 555-101 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 products typically come with a limited warranty covering defects in material and workmanship to provide confidence in product reliability.