Dorman Autograde Steel Cup Engine Expansion Plug 2 Inch Diameter with 0.566 Inch Height for Navistar and Pioneer Applications 555-044

Steel cup engine expansion plug 2 inch diameter with 0.566 inch height used to replace worn or leaking factory plugs in Navistar and Pioneer engine blocks.

Built to meet the manufacturer's design intent for reliable service using quality steel materials engineered to match original equipment form and function.

Key Features

• Constructed from durable steel for long-lasting performance
• Precise 2 inch outer diameter with 0.566 inch height
• Direct fit replacement designed to match OE specifications
• Validated through testing to ensure proper sealing
• Compatible with Navistar part number 387012C1
• Interchanges with Pioneer part number EPC-113

Benefits

• Restores engine block integrity by sealing coolant leaks
• Prevents overheating caused by failing expansion plugs
• Reduces risk of repeat repairs with durable construction
• Ensures smoother installation with direct-fit engineering
• Provides trustworthy quality backed by over a century of experience
• Helps maintain proper engine operating temperature

Application

Ideal for mechanics and DIY enthusiasts repairing engine cooling systems on vehicles requiring a 2 inch steel cup plug to stop leaks or replace corroded factory components.

Fitment Notes

• Designed for applications using Navistar 387012C1 or Pioneer EPC-113
• Verify engine block measurements before purchase to ensure correct fitment
• Consult vehicle service manual for specific plug locations

Why Choose Dorman - Autograde?

• Dorman parts are engineered as direct-fit replacements matching OE form fit and function
• Built with quality materials and validated through rigorous testing
• Backed by a team of product experts in the United States
• Focuses on fit durability and dependable performance to keep vehicles operating correctly

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 1.0 lbs