Dorman Autograde Steel Reverse Taper Cup Expansion Plug 3/8 In for Ford and Mercury 555-054

Steel reverse taper cup expansion plug 3/8 inch for Ford and Mercury vehicles used to replace worn or leaking factory engine plugs.

Built to meet the manufacturer's design intent for reliable service. This engine expansion plug is designed to match the fit and function of the original part on specified vehicles and is made of quality materials engineered for dependable performance.

Key Features

• Constructed from durable steel for long-lasting strength
• Features a reverse taper cup design for secure sealing
• Measures 3/8 inch in diameter with a height of 0.310 inch
• Direct replacement for original equipment expansion plugs
• Validated through testing to ensure proper fit and function
• Compatible with select Ford and Mercury engine blocks

Benefits

• Restores engine integrity by sealing coolant or oil passages effectively
• Reduces the risk of repeat repairs caused by inferior materials
• Ensures a smoother installation process with OE-matching dimensions
• Provides a trustworthy solution backed by over a century of automotive experience
• Helps maintain proper engine operating temperatures by preventing leaks
• Offers a cost-effective alternative to dealer-priced parts

Application

Ideal for mechanics and DIY enthusiasts repairing engine leaks on classic and modern Ford and Mercury vehicles. Commonly used during engine rebuilds, head gasket replacements, or when addressing corrosion in the engine block.

Fitment Notes

• Compatible with Ford models from years 1958 to 1977 and 2000 to 2002
• Compatible with Mercury models from years 1961 to 1970
• Replaces Ford part number 353001S and Pioneer part number EPC-92
• Verify vehicle compatibility using the part number 555-054 before purchase

Why Choose Dorman - Autograde?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function
• Products are backed by a team of product experts in the United States
• Built with quality materials to stand up to daily driving demands
• Delivers proven aftermarket solutions that keep your vehicle operating correctly

What's in the Box

• 10 pieces of steel reverse taper cup expansion plugs

Item Dimensions

• Package measures 4.9 inches by 3.7 inches by 2.2 inches
• Total package weight is 0.9 lbs