Dorman 55817 Fuel Tank Sending Unit Lock Ring

Reliable Fuel Tank Sending Unit Lock Ring for Ford, Lincoln, Mercury

The Dorman 55817 Fuel Tank Sending Unit Lock Ring is designed to securely retain the sending unit in your vehicle's fuel tank. Engineered from durable steel and including a gasket for a proper seal, this lock ring is compatible with select Ford, Lincoln, and Mercury models, ensuring a precise fit and reliable performance.

• Constructed from sturdy steel for long-lasting durability
• Includes a gasket to maintain a secure, leak-free seal
• Mounting hardware not included for straightforward replacement
• Package contains the sending unit retainer only
• Compatible with Ford Aviator, Expedition, Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, and Ranger models

Durable Steel Construction and Included Gasket

This fuel tank sending unit lock ring is made from high-quality steel, providing the strength needed to hold the sending unit firmly in place under various driving conditions. The included gasket helps prevent fuel leaks by creating a tight seal between the lock ring and the fuel tank. While mounting hardware is not included, the design allows for easy installation using existing components.

Compatible Vehicles and Part Number Details

The Dorman 55817 lock ring is specifically designed for use with Ford, Lincoln, and Mercury vehicles, including the Aviator, Expedition, Explorer (including Sport and Sport Trac variants), Mountaineer, and Ranger. Using the correct lock ring ensures proper fitment and function of the fuel tank sending unit, which is critical for accurate fuel level readings and overall fuel system integrity.

Common Issues Addressed by This Lock Ring

• Prevents fuel leaks caused by worn or damaged lock rings
• Secures the fuel tank sending unit to maintain accurate fuel gauge readings
• Replaces corroded or weakened lock rings to restore fuel system reliability
• Helps avoid fuel contamination by maintaining a proper seal
• Eliminates fuel odor and vapor leaks around the sending unit

Installation Notes and Tips

Before installation, ensure the fuel tank is empty or at a safe level to avoid spills. Remove the old lock ring carefully to prevent damage to the sending unit or fuel tank. Use the included gasket to create a proper seal, and tighten the lock ring securely but avoid over-tightening, which can cause damage. Since mounting hardware is not included, retain and reuse existing fasteners when possible.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and fitment. The 55817 Fuel Tank Sending Unit Lock Ring undergoes quality checks to ensure durability and proper sealing. Warranty coverage details can be obtained from the product documentation or manufacturer, supporting confidence in your purchase.