Dorman Autograde Engine Expansion Plug Kit with 15 Plugs and 5 Pipe Plugs for General Motors 557-001

Engine expansion plug kit for General Motors vehicles used to replace worn or leaking factory core plugs and pipe plugs.

Built to meet the manufacturer's design intent for reliable service using quality steel materials engineered for durability and a precise fit.

Key Features

• Includes 15 standard expansion plugs and 5 pipe plugs for comprehensive coverage
• Constructed from steel to resist corrosion and maintain seal integrity
• Designed as a direct replacement for original equipment parts
• Backed by over a century of automotive industry experience
• Validated through testing to ensure dependable performance

Benefits

• Stops coolant leaks caused by failed or corroded factory plugs
• Restores proper sealing to the engine block and cylinder head
• Reduces the risk of repeat repairs with durable construction
• Ensures a smoother installation with OE-matching form and fit
• Provides a cost-effective solution for maintaining engine health
• Helps prevent overheating issues associated with coolant loss

Application

Ideal for mechanics and DIY enthusiasts repairing coolant leaks on General Motors engines requiring a full set of core plugs and pipe plugs.

Fitment Notes

• Compatible with General Motors vehicles from model year 2002 to 2055 as specified by manufacturer data
• Cross-references multiple OEM part numbers including Ford F6AZ6026CA and GM 3704158

Why Choose Dorman - Autograde?

• 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 a smart way to restore your vehicle with confidence in fit durability and performance

What's in the Box

• 1 Kit containing 15 expansion plugs and 5 pipe plugs

Item Dimensions

• 8.0 inches x 5.0 inches x 5.0 inches
• Weight: 0.7 lbs