Engine Expansion Plug Dorman Steel Replacement

Description

Product Overview

The Dorman 555-036 Engine Expansion Plug is engineered from high‑grade steel to provide a sturdy, long‑lasting solution for engine cooling system repairs. Designed as a direct replacement, it matches the fit and function of original equipment plugs for a range of makes and models. Dimensions measure 3.63 x 2.38 x 2.19 inches and it weighs just 0.61 pounds, making handling easy. The plug comes in a neutral silver finish and is ready to paint if a custom color match is required.

Usage

This plug is intended for automotive technicians and DIY enthusiasts who need to restore engine coolant flow after a plug failure. Ideal for use during engine overhauls, coolant system flushes, or routine maintenance, it fits seamlessly into the expansion port of compatible engines. Ensure the vehicle’s make, model, and trim are entered into the garage tool to verify exact fit before installation.

Why Choose Us

Dorman brings over a century of automotive expertise, guaranteeing that each part meets rigorous quality standards. Our expansion plug is backed by a team of U.S. product experts, ensuring you receive a component that delivers reliable performance and longevity. The steel construction resists corrosion and fatigue, while the ready‑to‑paint surface allows seamless integration with your engine’s aesthetic.

Key Features

• Direct OEM fit for specified vehicle models
• Durable steel construction for long service life
• Ready‑to‑paint finish for easy color matching
• Lightweight design at only 0.61 lbs for easy handling
• Backed by Dorman’s extensive automotive experience

FAQ

Is this plug compatible with my vehicle?

Yes, the Dorman 555-036 is a direct replacement for OEM part numbers 357167‑S, 376043‑S, 478080‑C1, 555760, and 94021815. Use the garage tool to confirm fit for your specific make, model, and trim.

Do I need to paint the plug?

The plug arrives with a neutral silver finish and is ready to paint if you prefer a color match with your engine components. Painting is optional and does not affect performance.

What is the warranty on this part?

Dorman offers a limited warranty that covers manufacturing defects. Refer to the warranty card included with the product for full details.

Can I install this plug myself?

Installation is straightforward for anyone with basic mechanical skills. Ensure the engine is cool, remove the old plug, and seat the new Dorman plug firmly into the expansion port.

How many plugs are included in the package?

The package contains ten steel engine expansion plugs, providing ample supply for multiple repairs or fleet maintenance.