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Dorman 579-011 Fuel Tank Sending Unit Lock Ring
Reliable Fuel Tank Sending Unit Lock Ring for Ford, Lincoln, and Mercury
The Dorman 579-011 fuel tank sending unit lock ring is designed to provide a secure seal and reliable fitment for select Ford, Lincoln, and Mercury vehicles. Engineered with durable rubber material, this lock ring ensures proper sealing and long-lasting performance for your fuel tank assembly.
- Constructed from high-quality rubber for durability and flexibility
- Inside diameter measures 4.61 inches for precise fit
- Outside diameter of 6.56 inches ensures compatibility with fuel tank openings
- Includes gasket or seal to maintain a tight, leak-free connection
- Lock ring diameter of 4.5 inches designed for secure fastening
- Package contains one fuel tank lock ring
Durable Rubber Construction and Precise Dimensions
This fuel tank sending unit lock ring is made from rubber, providing the necessary flexibility and resistance to fuel and environmental factors. The 4.61-inch inside diameter and 6.56-inch outside diameter are engineered to fit securely around the fuel tank sending unit, preventing leaks and ensuring proper operation. The included gasket or seal enhances the integrity of the fuel system by creating a reliable barrier against contaminants and fuel vapors.
Compatible Vehicles and Applications
The Dorman 579-011 lock ring is compatible with a range of Ford, Lincoln, and Mercury models, including the Crown Victoria, F-250 Super Duty, F-350 Super Duty, Grand Marquis, Marauder, Mustang, and Town Car. This part is specifically designed to meet the requirements of these vehicles’ fuel tank sending unit assemblies, making it a suitable replacement for worn or damaged lock rings.
- Prevents fuel leaks caused by worn or damaged lock rings
- Maintains proper sealing of the fuel tank sending unit
- Helps avoid fuel system contamination and vapor leaks
- Ensures secure mounting of the fuel tank sending unit
- Restores fuel system integrity for affected Ford, Lincoln, and Mercury models
Installation Notes and Tips
When installing the Dorman 579-011 fuel tank sending unit lock ring, ensure the gasket or seal is properly seated to prevent leaks. Clean the fuel tank opening and sending unit flange before installation to remove debris or old sealant. Use appropriate tools to tighten the lock ring evenly, avoiding over-tightening which could damage the rubber material.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and fitment. The 579-011 fuel tank sending unit lock ring undergoes quality checks to ensure durability and compatibility. Please refer to Dorman’s warranty policy for specific coverage details.
| Brand | Dorman |
| Part Number | 579-011 |
| Material | Rubber |
| Inside Diameter | 4.61 |
| Outside Diameter | 6.56 |
| Mounting Hardware Included | Yes |
| Gasket Or Seal Included | Yes |
| Lock Ring Diameter (In) | 4.5 in |
| Package Contents | 1 fuel tank lock ring |
This part fits 87 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2011 | Ford | Crown Victoria | N/A | |
| 2011 | Lincoln | Town Car | N/A | |
| 2011 | Mercury | Grand Marquis | N/A | |
| 2010 | Ford | Crown Victoria | N/A | |
| 2010 | Lincoln | Town Car | N/A | |
| 2010 | Mercury | Grand Marquis | N/A | |
| 2009 | Ford | Crown Victoria | N/A | |
| 2009 | Lincoln | Town Car | N/A | |
| 2009 | Mercury | Grand Marquis | N/A | |
| 2008 | Ford | Crown Victoria | N/A | |
| 2008 | Lincoln | Town Car | N/A | |
| 2008 | Mercury | Grand Marquis | N/A | |
| 2007 | Ford | Crown Victoria | N/A | |
| 2007 | Ford | F-250 Super Duty | N/A | Metal |
| 2007 | Ford | F-350 Super Duty | N/A | Metal |
| 2007 | Lincoln | Town Car | N/A | |
| 2007 | Mercury | Grand Marquis | N/A | |
| 2006 | Ford | Crown Victoria | N/A | |
| 2006 | Ford | F-250 Super Duty | N/A | Metal |
| 2006 | Ford | F-350 Super Duty | N/A | Metal |
| 2006 | Lincoln | Town Car | N/A | |
| 2006 | Mercury | Grand Marquis | N/A | |
| 2005 | Ford | Crown Victoria | N/A | |
| 2005 | Ford | F-250 Super Duty | N/A | Metal |
| 2005 | Ford | F-350 Super Duty | N/A | Metal |
| 2005 | Lincoln | Town Car | N/A | |
| 2005 | Mercury | Grand Marquis | N/A | |
| 2004 | Ford | Crown Victoria | N/A | |
| 2004 | Ford | F-250 Super Duty | N/A | Metal |
| 2004 | Ford | F-350 Super Duty | N/A | Metal |
| 2004 | Ford | Grand Marquis | N/A | |
| 2004 | Ford | Mustang | N/A | |
| 2004 | Lincoln | Town Car | N/A | |
| 2004 | Mercury | Grand Marquis | N/A | |
| 2004 | Mercury | Marauder | N/A | |
| 2003 | Ford | Crown Victoria | N/A | |
| 2003 | Ford | F-250 Super Duty | N/A | Metal |
| 2003 | Ford | F-350 Super Duty | N/A | Metal |
| 2003 | Ford | Grand Marquis | N/A | |
| 2003 | Ford | Mustang | N/A | |
| 2003 | Lincoln | Town Car | N/A | |
| 2003 | Mercury | Grand Marquis | N/A | |
| 2003 | Mercury | Marauder | N/A | |
| 2002 | Ford | Crown Victoria | N/A | |
| 2002 | Ford | F-250 Super Duty | N/A | Metal |
| 2002 | Ford | F-350 Super Duty | N/A | Metal |
| 2002 | Ford | Grand Marquis | N/A | |
| 2002 | Ford | Mustang | N/A | |
| 2002 | Lincoln | Town Car | N/A | |
| 2002 | Mercury | Grand Marquis | N/A | |
| 2001 | Ford | Crown Victoria | N/A | |
| 2001 | Ford | F-250 Super Duty | N/A | Metal |
| 2001 | Ford | F-350 Super Duty | N/A | Metal |
| 2001 | Ford | Grand Marquis | N/A | |
| 2001 | Ford | Mustang | N/A | |
| 2001 | Lincoln | Town Car | N/A | |
| 2001 | Mercury | Grand Marquis | N/A | |
| 2000 | Ford | Crown Victoria | N/A | |
| 2000 | Ford | F-250 Super Duty | N/A | Metal |
| 2000 | Ford | F-350 Super Duty | N/A | Metal |
| 2000 | Ford | Grand Marquis | N/A | |
| 2000 | Ford | Mustang | N/A | |
| 2000 | Lincoln | Town Car | N/A | |
| 2000 | Mercury | Grand Marquis | N/A | |
| 1999 | Ford | Crown Victoria | N/A | |
| 1999 | Ford | F-350 Super Duty | N/A | Metal |
| 1999 | Ford | Grand Marquis | N/A | |
| 1999 | Ford | Mustang | N/A | |
| 1999 | Lincoln | Town Car | N/A | |
| 1999 | Mercury | Grand Marquis | N/A | |
| 1998 | Ford | Crown Victoria | N/A | |
| 1998 | Ford | Grand Marquis | N/A | |
| 1998 | Ford | Mustang | N/A | |
| 1998 | Lincoln | Town Car | N/A | |
| 1998 | Mercury | Grand Marquis | N/A | |
| 1997 | Ford | Crown Victoria | N/A | |
| 1997 | Ford | Grand Marquis | N/A | |
| 1997 | Lincoln | Town Car | N/A | |
| 1997 | Mercury | Grand Marquis | N/A | |
| 1996 | Ford | Crown Victoria | N/A | |
| 1996 | Ford | Grand Marquis | N/A | |
| 1996 | Lincoln | Town Car | N/A | |
| 1996 | Mercury | Grand Marquis | N/A | |
| 1995 | Ford | Crown Victoria | N/A | |
| 1995 | Ford | Grand Marquis | N/A | |
| 1995 | Lincoln | Town Car | N/A | |
| 1995 | Mercury | Grand Marquis | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.