Dorman 555-019 Engine Expansion Plug - Rear

Overview of Dorman Engine Core Plug 555-019

The Dorman 555-019 engine core plug is a steel cup-type expansion plug designed for reliable sealing in various engine applications. This part is compatible with multiple Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac, and Toyota models, providing a precise fit for specific engine maintenance needs.

• Constructed from durable steel material for long-lasting performance
• Cup-type design ensures effective sealing of engine block openings
• Maximum diameter of 1.145 inches and minimum diameter of 1.132 inches for accurate fitment
• Compatible with a wide range of GM and Toyota vehicles including Camaro, Impala, DeVille, and Supra
• Sold as a single expansion plug for targeted engine repairs

Detailed Product Description

The Dorman 555-019 engine core plug is engineered to replace worn or damaged expansion plugs in engine blocks. Made from steel, this cup-type plug offers a secure seal to prevent coolant or oil leaks through core holes in the engine block. Its precise diameter measurements, ranging from 1.132 to 1.145 inches, ensure a snug fit in the designated openings. This plug is suitable for use in a variety of vehicles, including Buick models like the Century and LeSabre, Cadillac DeVille and Eldorado, Chevrolet Camaro and Caprice, Oldsmobile Cutlass series, Pontiac Firebird and Grand Prix, as well as Toyota models such as the Supra and Cressida.

Common Applications and Problem Solving

• Sealing engine block core holes to prevent coolant leaks
• Replacing corroded or damaged expansion plugs in GM and Toyota engines
• Maintaining engine block integrity during rebuilds or repairs
• Preventing oil leaks that can cause engine performance issues
• Ensuring proper engine cooling system function by sealing core openings

Installation Notes and Tips

When installing the Dorman 555-019 engine core plug, ensure the engine block surface is clean and free of debris. Use appropriate tools to press the plug evenly into the core hole without damaging the cup-type edges. Verify the plug diameter matches the engine block specifications to avoid leaks. It is recommended to inspect surrounding areas for corrosion or damage during installation and replace any compromised components.

Quality Assurance and Warranty

Dorman engine core plugs are manufactured to meet or exceed OEM specifications, providing reliable performance in engine repair applications. The 555-019 part number undergoes quality control checks to ensure dimensional accuracy and material integrity. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to support professional repair standards.