Dorman 54011 Engine Coolant Reservoir Cap

Overview of Dorman Engine Coolant Reservoir Cap 54011

The Dorman 54011 engine coolant reservoir cap is designed for reliable pressure management in Ford and Mercury vehicles. This twist-type, threaded-on cap ensures a secure seal for the coolant reservoir, maintaining optimal engine temperature control in models like the Ford Contour, Mercury Cougar, and Mystique.

• Constructed from durable black plastic material
• Measures 2.2 inches in diameter and width, with a length of 1.44 inches
• Threaded-on attachment type for secure installation
• Twist-type cap without a pressure release lever
• Pressurized design with a maximum pressure rating of 17.4 psi
• Non-vented cap to maintain system pressure
• Includes one coolant reservoir cap per package

Detailed Product Description

The Dorman 54011 engine coolant reservoir cap is engineered to maintain the pressurized environment necessary for efficient engine cooling. Its plastic construction offers resistance to heat and corrosion, suitable for the cooling systems of Ford Contour, Mercury Cougar, and Mystique vehicles. The cap’s 2.2-inch diameter and threaded-on attachment ensure a tight fit, preventing coolant leaks and pressure loss. The twist-type design allows for straightforward removal and installation without the need for additional tools. This cap does not include a pressure release lever or venting, which helps maintain the system’s pressurized state up to 17.4 psi, critical for preventing overheating and coolant evaporation.

Compatible Vehicles and Applications

This engine coolant reservoir cap is compatible with the following vehicles:

• Ford Contour
• Mercury Cougar
• Mercury Mystique

It is specifically designed to replace worn or damaged coolant reservoir caps in these models, ensuring proper pressure regulation and coolant containment.

Common Issues Addressed by This Coolant Reservoir Cap

• Prevents coolant leaks caused by damaged or loose caps
• Maintains proper system pressure to avoid engine overheating
• Reduces risk of coolant evaporation and contamination
• Ensures secure attachment to prevent cap loss during vehicle operation
• Helps maintain consistent coolant flow and engine temperature regulation

Installation Notes and Tips

• Ensure the reservoir neck is clean and free of debris before installation
• Align the cap threads carefully and twist clockwise until securely tightened
• Do not overtighten to avoid damaging the plastic threads
• Check for leaks after installation by running the engine and inspecting the cap area
• Replace the cap if it shows signs of cracking, warping, or pressure loss

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 54011 engine coolant reservoir cap undergoes quality control testing to ensure durability and performance under normal operating conditions. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to the product documentation for exact warranty terms.