Dorman 555-038 Engine Expansion Plug

Overview of Dorman Engine Core Plug 555-038

The Dorman 555-038 engine core plug is designed for reliable sealing in Volvo engines, specifically compatible with models 240, 740, 745, 760, 780, and 940. Constructed from durable steel, this cup-type expansion plug ensures a precise fit and long-lasting performance.

• Material: Steel for strength and corrosion resistance
• Maximum Diameter: 1.9 inches
• Minimum Diameter: 1.887 inches
• Type: Cup type expansion plug
• Compatible with Volvo 240, 740, 745, 760, 780, and 940 models

Detailed Product Description

The Dorman 555-038 engine core plug is engineered to meet the exact specifications required for Volvo engines in the 240, 740, 745, 760, 780, and 940 series. Made from steel, this cup-type plug provides a secure seal for engine block openings, preventing coolant and oil leaks. The precise diameter range between 1.887 and 1.9 inches ensures a tight fit, reducing the risk of plug failure under engine operating conditions. This expansion plug is an essential component for maintaining engine integrity and preventing fluid loss.

Common Applications and Issues Addressed

• Sealing core holes in Volvo engine blocks
• Preventing coolant leaks that can cause overheating
• Stopping oil leaks that may lead to engine damage
• Replacing worn or corroded core plugs in Volvo 240 and 700 series engines
• Maintaining engine block pressure and fluid containment

Installation Notes and Tips

• Ensure the engine block surface is clean and free of debris before installation
• Verify the plug diameter matches the core hole for a proper fit
• Use appropriate tools to press the plug evenly into place without damaging the steel material
• Inspect the plug and surrounding area for leaks after installation

Quality Assurance and Warranty

Dorman engine core plugs are manufactured to meet industry standards for durability and fitment. The steel construction offers resistance to corrosion and wear, contributing to long service life. While specific warranty details for part number 555-038 may vary, Dorman products typically come with a limited warranty against defects in material and workmanship to ensure customer confidence.