Dorman Autograde Steel Cup Expansion Plug 2-3/32 Inch with 0.278 Inch Height for General Motors 555-049

Steel cup expansion plug for General Motors vehicles designed to replace worn or leaking camshaft plugs with part number 555-049.

Built to meet the manufacturer's design intent for reliable service using quality steel materials engineered for durable performance in demanding engine environments.

Key Features

• Constructed from durable steel for long-lasting resistance to corrosion and pressure
• Precise diameter of 2-3/32 inches ensures a tight seal in the engine block
• Cup height of 0.278 inches matches original equipment specifications
• Direct fit replacement designed to restore proper engine sealing
• Validated through testing to ensure consistent quality and reliability

Benefits

• Prevents oil leaks and fluid loss from the camshaft area
• Restores engine integrity to prevent potential damage from seal failure
• Reduces the risk of repeat repairs with trustworthy aftermarket quality
• Ensures a smoother installation process with OE-matching dimensions
• Provides a cost-effective solution compared to dealer-only parts

Application

Ideal for mechanics and DIY enthusiasts repairing General Motors engines that require a replacement for the factory camshaft expansion plug to stop leaks or during engine rebuilds.

Fitment Notes

• Compatible with select General Motors models utilizing this specific plug size
• Replaces General Motors part number 3704158 and Pioneer EPS-150
• Verify vehicle compatibility using the part number before purchase

Why Choose Dorman - Autograde?

• Dorman parts are engineered as direct-fit replacements designed to match OE form fit and function
• Backed by a team of product experts in the United States and over a century of automotive experience
• Built with quality materials to stand up to daily driving demands

What's in the Box

• 10 Piece set of steel cup expansion plugs

Item Dimensions

• Package measures 4.9 inches by 3.7 inches by 2.2 inches
• Total package weight is 0.8 lbs