Dorman 555-006 Engine Core Plug

Reliable Steel Engine Core Plug for Nissan and INFINITI Vehicles

The Dorman 555-006 engine core plug is designed to provide a durable sealing solution for your engine block. Made from steel with precise dimensions, this cup-type expansion plug is compatible with various Nissan and INFINITI models, ensuring a secure fit and reliable performance.

• Constructed from durable steel material for long-lasting use
• Cup-type design for effective sealing in engine block openings
• Maximum diameter of 0.508 inches and minimum diameter of 0.495 inches for precise fitment
• Compatible with multiple Nissan and INFINITI models including 200SX, D21, Maxima, Pathfinder, Pickup, Quest, and QX4
• Sold as a single expansion plug for targeted replacement needs

Detailed Description of the Dorman 555-006 Engine Core Plug

This engine core plug from Dorman is engineered to replace worn or damaged expansion plugs in the engine block. The steel construction offers resistance to corrosion and engine heat, maintaining a tight seal to prevent coolant or oil leaks. The cup-type design allows the plug to expand slightly when installed, ensuring a secure fit within the engine block’s core holes. With diameters ranging from 0.495 to 0.508 inches, the 555-006 plug fits specific engine block openings found in Nissan and INFINITI vehicles such as the 200SX, D21, Maxima, Pathfinder, Pickup, Quest, and QX4 models.

Common Applications and Issues Addressed

• Sealing core holes in engine blocks to prevent coolant leaks
• Replacing corroded or damaged expansion plugs in Nissan 200SX and Maxima engines
• Maintaining engine block integrity in INFINITI QX4 and Quest models
• Preventing oil leaks caused by faulty core plugs in Nissan Pathfinder and Pickup vehicles
• Restoring proper engine cooling system function by sealing block openings

Installation Notes and Tips

When installing the Dorman 555-006 engine core plug, ensure the engine block surface is clean and free of debris. The cup-type plug should be carefully pressed into the core hole to avoid deformation. Using the correct diameter plug is critical for a proper seal, so verify measurements before installation. It is recommended to inspect surrounding areas for corrosion or damage during replacement to maintain overall engine health.

Quality Assurance and Warranty Information

Dorman manufactures the 555-006 engine core plug to meet or exceed OEM specifications for fit and function. The steel material and precise manufacturing tolerances contribute to reliable performance in demanding engine environments. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship.