Dorman 579-001 Fuel Tank Sending Unit Lock Ring

Reliable Fuel Tank Sending Unit Lock Ring for GM Vehicles

The Dorman 579-001 Fuel Tank Sending Unit Lock Ring is designed to provide a secure seal and reliable fitment for various General Motors vehicles. Crafted from durable metal, this lock ring ensures proper installation and long-lasting performance for fuel tank sending units on select Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models.

• Constructed from sturdy metal for durability and corrosion resistance
• Inside diameter measures 3 inches for precise fit
• Outside diameter of 4.25 inches ensures compatibility with OEM specifications
• Includes a gasket or seal to maintain a tight, leak-free connection
• Lock ring diameter of 3.125 inches designed for secure fastening
• Package contains one fuel pump lock ring, part number 579-001

Durable Construction and Precise Dimensions

This fuel tank sending unit lock ring is manufactured from metal to withstand the harsh conditions within the fuel tank environment. The included gasket or seal helps prevent fuel leaks and maintains system integrity. With an inside diameter of 3 inches and an outside diameter of 4.25 inches, the lock ring fits securely around the fuel pump assembly. The 3.125-inch lock ring diameter ensures compatibility with a wide range of GM vehicles, including popular models such as the Chevrolet Silverado, GMC Sierra, Cadillac DeVille, Buick LeSabre, and Pontiac Grand Prix.

Compatible GM Makes and Models

This Dorman lock ring is compatible with numerous GM makes and models, including Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac. It fits vehicles such as the Chevrolet Blazer, Camaro, Caprice, and Impala; GMC Sierra and Jimmy; Cadillac Eldorado and Seville; Buick Century and Regal; and Pontiac Firebird and Bonneville. The part number 579-001 is designed to meet the specifications required for these models, ensuring a proper fit and function.

Common Applications and Problem Resolution

• Secures the fuel tank sending unit to prevent fuel leaks
• Replaces worn or damaged lock rings that cause fuel system issues
• Restores proper sealing to maintain fuel system pressure
• Prevents fuel contamination by ensuring a tight seal
• Eliminates fuel odor and vapor leaks around the fuel pump assembly

Installation Notes and Tips

Installation of the Dorman 579-001 lock ring requires removal of the fuel tank sending unit. Ensure the gasket or seal is properly seated to avoid leaks. Use appropriate tools to tighten the lock ring evenly without over-torquing, which could damage the ring or fuel tank. Verify compatibility with your specific vehicle model before installation to ensure proper fitment.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for quality and durability. The 579-001 fuel tank sending unit lock ring undergoes rigorous testing to ensure reliable performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation for exact warranty terms.