Dorman Autograde Steel Cup Expansion Plug 5/8 Inch with 0.650 Inch Height for Ford Mercury Toyota Merkur 555-010

Steel cup expansion plug 5/8 inch for Ford Mercury Toyota and Merkur engines used to replace worn or leaking factory core plugs.

Built to meet the manufacturer's design intent for reliable service. This plug is constructed from quality steel materials and engineered to match the original equipment form, fit, and function for a secure seal in your engine block.

Key Features

• Constructed from durable steel for long-lasting performance
• Dimensions: 5/8 inch diameter with 0.650 inch height
• Direct replacement for specified OEM part numbers
• Designed to prevent coolant leaks and maintain engine integrity
• Validated through testing to ensure proper fitment
• Backed by over a century of automotive experience

Benefits

• Restores engine cooling system sealing to prevent overheating
• Reduces the risk of repeat repairs with reliable materials
• Ensures smoother installation with OE-matching dimensions
• Provides a cost-effective solution for engine maintenance
• Helps maintain optimal engine operating temperature
• Delivers peace of mind with trustworthy quality standards

Application

Ideal for mechanics and DIY enthusiasts repairing coolant leaks or performing engine rebuilds on compatible Ford, Mercury, Toyota, and Merkur vehicles. Commonly used when replacing corroded or damaged factory expansion plugs.

Fitment Notes

• Compatible with select Ford models from 1977 to 2005
• Compatible with select Mercury models from 1981 to 2005 and 1979
• Compatible with select Toyota models from 1968 to 1972
• Compatible with select Merkur models from 1985 to 1989
• Verify vehicle compatibility using part number 555-010 before purchase

Why Choose Dorman - Autograde?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function
• Built with quality materials and validated through testing to stand up to daily driving demands
• Supported by a team of product experts in the United States
• Focuses on fit, durability, and dependable performance to restore vehicle confidence

What's in the Box

• 10 Piece set of steel cup expansion plugs

Item Dimensions

• Package Size: 3.2 inches x 2.4 inches x 1.5 inches
• Weight: 0.1 lbs