Dorman Autograde Steel Cup Engine Expansion Plug 1-7/32 Inch for Ford and General Motors 555-022

Steel cup engine expansion plug 1-7/32 inch for Ford and General Motors vehicles used to replace worn or leaking factory core plugs.

Built to meet the manufacturer's design intent for reliable service, this plug is constructed from quality steel materials to ensure a secure seal and long-lasting durability in demanding engine environments.

Key Features

• Constructed from durable steel for corrosion resistance
• Precise 1-7/32 inch diameter with 0.500 inch height
• Engineered to match original equipment form and fit
• Validated through testing for consistent performance
• Sold as a 10-piece pack for multiple replacements
• Direct replacement for specified Ford and GM models

Benefits

• Stops coolant leaks caused by failed expansion plugs
• Restores proper sealing to prevent engine overheating
• Reduces the risk of repeat repairs with quality materials
• Ensures smoother installation with OE-matched dimensions
• Provides cost-effective solution for fleet or shop use
• Maintains engine integrity under daily driving demands

Application

Ideal for automotive technicians and DIY mechanics repairing cooling system leaks on older Ford and General Motors engines requiring a 1-7/32 inch cup plug.

Fitment Notes

• Compatible with Ford Motor Company models from 1983 to 1994
• Compatible with General Motors models from 1954 to 1962, 1975 to 1988, and 1995
• Replaces General Motors part numbers 663032 and 25513253
• Replaces Pioneer part numbers EPC18-25 and EPC-17

Why Choose Dorman?

• 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 and validated through testing to stand up to daily driving demands.

What's in the Box

• 10 Piece Pack of Steel Cup Expansion Plugs

Item Dimensions

• 3.7 inches x 2.4 inches x 2.2 inches
• Weight: 0.5 lbs