Dorman Autograde Brass Cup Engine Expansion Plug 1-1/4 Inch with 0.400 Inch Height 565-023

Brass cup engine expansion plug 1-1/4 inch size used to replace worn or leaking freeze plugs in automotive engines.

Built to meet the manufacturer's design intent for reliable service, this expansion plug is constructed from quality brass materials engineered for dependable performance and a precise fit.

Key Features

• Constructed from durable brass material for corrosion resistance
• Features a 1-1/4 inch diameter with a 0.400 inch height
• Designed to match the fit and function of original equipment
• Engineered as a direct-fit replacement for specified applications
• Validated through testing to ensure reliable operation
• Backed by over a century of automotive industry experience

Benefits

• Restores engine sealing integrity to prevent coolant leaks
• Reduces the risk of repeat repairs with durable construction
• Ensures smoother installation with OE-matching dimensions
• Provides long-lasting protection against engine block damage
• Offers trustworthy quality supported by US-based product experts
• Helps maintain proper engine cooling system pressure

Application

Ideal for mechanics and DIY enthusiasts performing engine block repairs, cooling system overhauls, or replacing corroded freeze plugs to prevent fluid loss and overheating.

Fitment Notes

• Specific vehicle fitment years, makes, and models are not provided in the manufacturer data
• Verify part dimensions against your engine block requirements before purchase
• Compatible with applications requiring a 1-1/4 inch brass cup plug

Why Choose Dorman?

• 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
• Offers proven aftermarket solutions that keep your vehicle operating the way it should

What's in the Box

• 10 Piece set of brass cup expansion plugs

Item Dimensions

• Package measures 3.7 inches x 2.4 inches x 2.2 inches
• Total package weight is 0.4 lbs