URO 1644700230 Fuel Tank Sending Unit Lock Ring

Fuel Tank Sending Unit Lock Ring

This URO fuel tank sending unit lock ring is a direct-fit replacement for Mercedes-Benz fuel system service. It helps secure the sending unit and fuel pump assembly in the tank so the unit stays properly positioned during operation.

Key Features

• Direct-fit fuel tank sending unit lock ring for Mercedes-Benz applications
• Helps keep the fuel pump positioned correctly in the fuel tank
• Recommended whenever the sending unit is serviced
• Made from high-quality materials for durability
• Includes Viton o-ring for listed applications
• URO part number 1644700230

Detailed Description

Built for Mercedes-Benz fuel system service, this lock ring is used to retain the fuel tank sending unit and support proper pump placement. It is a practical replacement when servicing the fuel level sender, fuel pump module, or related tank components on models such as the Mercedes-Benz GLE400, GL450, and ML350. The URO 1644700230 lock ring is also cross-referenced to Genuine 1644700230 and aftermarket reference numbers 139 33015 001 and URO-013398.

Compatible With Mercedes-Benz GLE400, GLE43 AMG, GLE63 AMG, GLS450, GL550, GL63 AMG, GLE350, GLE550e, GLE300d, GL350, GL450, GL550, ML350, ML63 AMG, R350, and related listed applications across 2006-2019 model years.

Common Service Issues

• Loose or improperly seated fuel sending unit
• Fuel pump module not held in the correct tank position
• Fuel system service after sender or pump replacement
• Damaged or worn lock ring during tank repair
• Need for a fresh sealing component during fuel tank maintenance

Installation Notes

Install during fuel tank sending unit or fuel pump service and verify the ring is fully seated before returning the vehicle to service. Follow Mercedes-Benz service procedures for the listed application, and inspect the sealing surface and o-ring condition during installation.

Quality Assurance

URO backs this part with a 24 Month Unlimited Mileage Warranty. It is engineered for guaranteed fitment and built with durable materials for long-term fuel system service.