Dorman Autograde Steel Cup Engine Expansion Plug 1-1/8 In for General Motors and Toyota 555-019

Steel cup engine expansion plug 1-1/8 inch for General Motors and Toyota vehicles used to replace worn or leaking factory freeze plugs.

Built to meet the manufacturer's design intent for reliable service, this plug is constructed from durable steel to withstand engine pressures and resist corrosion over time.

Key Features

• Constructed from high-quality steel for long-lasting durability
• Precise 1-1/8 inch diameter with 0.505 inch height
• Direct replacement for original equipment specifications
• Engineered to match OE form, fit, and function
• Validated through testing for daily driving demands
• Sold as a 10-piece pack for multiple replacements

Benefits

• Restores engine sealing to prevent coolant leaks
• Reduces the risk of repeat repairs with robust materials
• Ensures a smoother installation with direct-fit design
• Helps maintain proper engine operating temperature
• Provides a cost-effective solution for fleet or shop use
• Backed by over a century of automotive experience

Application

Ideal for mechanics and DIY enthusiasts repairing cooling systems on older General Motors and Toyota models requiring a 1-1/8 inch cup plug to seal engine block openings.

Fitment Notes

• Compatible with select General Motors models from 1975 to 1995
• Compatible with select Toyota models from 1987 to 1992
• Replaces part numbers including GM 1343096 and Volvo 9467804

Why Choose Dorman - Autograde?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results while standing up to daily driving demands.

What's in the Box

• 10 Piece Engine Expansion Plug Set

Item Dimensions

• 3.7 inches x 2.4 inches x 2.2 inches
• Weight: 0.3 lbs