Dorman 570-003 Engine Expansion Plug

Durable Engine Core Plug for Buick and Chevrolet Vehicles

The Dorman 570-003 engine core plug is designed to provide a reliable seal for engine block openings in select Buick and Chevrolet models. Made from rubber with a brass color finish, this quick-seal press fit plug ensures a secure and lasting fit for your engine maintenance needs.

• Material: Rubber construction for flexibility and durability
• Maximum and minimum diameter: 0.75 inches for precise fit
• Color: Brass, providing corrosion resistance and easy identification
• Attachment Type: Press fit for straightforward installation
• Depth: 0.75 inches to match engine block specifications
• Type: Quick-seal design to prevent leaks and maintain engine integrity
• Package Contents: Includes 5 expansion plugs for multiple repairs

Product Details and Specifications

The Dorman 570-003 engine core plug is engineered to meet the exact dimensions required for a secure press fit in engine blocks. Its rubber material offers the necessary flexibility to create a tight seal, while the brass color indicates corrosion resistance, which is essential for engine longevity. The quick-seal design simplifies installation and helps prevent coolant or oil leaks. With a consistent diameter and depth of 0.75 inches, this plug fits precisely in the designated openings of compatible engines.

Compatible Buick and Chevrolet Models

This engine core plug is compatible with a range of Buick and Chevrolet vehicles, including the Camaro, Celebrity, Century, Citation, Citation II, Lumina, Monza, and Skylark. Whether you are performing routine maintenance or addressing a specific engine block issue, the Dorman 570-003 is designed to fit these models accurately.

Common Applications and Problem Solving

• Sealing engine block core holes after casting or repair
• Preventing coolant leaks that can cause engine overheating
• Stopping oil leaks that may lead to engine damage
• Replacing worn or damaged core plugs to maintain engine pressure
• Ensuring a secure fit to avoid engine contamination

Installation Notes and Tips

Installation of the Dorman 570-003 engine core plug requires a clean and dry engine block surface. The press fit attachment type means the plug should be pressed firmly into the core hole until fully seated. Avoid using excessive force that could damage the plug or engine block. It is recommended to inspect the core hole for any debris or corrosion before installation to ensure a proper seal.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for engine repairs. The 570-003 engine core plug undergoes quality checks to ensure dimensional accuracy and material integrity. While specific warranty details may vary, Dorman typically offers coverage against manufacturing defects to support customer confidence in their products.