This Mercedes-Benz A1714710110 Fuel Tank Sending Unit Lock Ring is a genuine OEM part that will securely lock in your fuel tank sending unit. Made specifically for the Mercedes-Benz brand, this lock ring will ensure proper fuel delivery to your engine. The lock ring is designed for use with fuel tanks of all sizes and is compatible with various Mercedes-Benz models. Replace your old and worn-out lock ring with this new one to maintain the quality and performance of your vehicle.