Dorman Autograde Steel Cup Expansion Plug 2-3/64 In for Buick GMC Oldsmobile Pontiac 555-047

Steel cup expansion plug 2-3/64 inch for Buick GMC Oldsmobile and Pontiac engines used to replace worn or leaking original camshaft plugs.

Built to meet the manufacturer's design intent for reliable service. This engine camshaft plug is constructed from quality steel materials and engineered to match the fit and function of the original part on specified vehicles.

Key Features

• Material: High-quality steel construction
• Size: 2-3/64 Inch outer diameter
• Height: 0.280 inches
• Type: SC (Steel Cup) expansion plug
• Package Quantity: 10 pieces per box
• Direct replacement for General Motors part 523096

Benefits

• Restores engine sealing to prevent oil or coolant leaks
• Matches OE form and function for smoother installation
• Durable steel build reduces risk of repeat repairs
• Cost-effective solution for multi-plug replacement jobs
• Backed by over a century of automotive expertise
• Validated through testing for daily driving demands

Application

Ideal for mechanics and DIY enthusiasts performing engine repairs on classic Buick GMC Oldsmobile and Pontiac models. Commonly used when resealing camshaft areas or addressing corrosion in older engine blocks.

Fitment Notes

• Compatible with Buick models from 1967-1969 1975 and 1977-1980
• Fits GMC vehicles manufactured between 1955 and 1959
• Designed for Oldsmobile 1975 and 1979 model years
• Matches Pontiac engines from 1956-1957 and 1959-1981
• Verify specific engine application before purchase

Why Choose Dorman - Autograde?

• Dorman parts are engineered as direct-fit replacements designed to match OE form fit and function
• Strong focus on fit durability and dependable performance
• Built with quality materials and validated through rigorous testing
• Supported by a team of product experts in the United States

What's in the Box

• 10 Pieces of Steel Cup Expansion Plugs

Item Dimensions

• Length: 4.9 inches
• Width: 3.7 inches
• Height: 2.2 inches
• Weight: 0.8 lbs