Fuel Sender Assembly for Vehicle

A fuel sender assembly for a vehicle which is mounted at a fuel tank using ethanol fuel or bio-diesel fuel through a fuel pump having a sensing portion and detects residual fuel in the fuel tank, comprising:

• a main housing which is mounted at a reservoir cap of the fuel pump and is provided with a boss therein;
• a variable resistance unit which is mounted inside the main housing and is provided with a ceramic resistance plate having a ground resistance;
• a contact arm unit disposed at an upper portion of the ceramic resistance plate and rotatably mounted to the boss inside the main housing;
• a main cover covering an upper surface of the main housing to receive the variable resistance unit and the contact arm unit therein and having a penetrating hole in a corresponding position to the boss;
• a retainer unit disposed on the main cover;
• a float arm connected to the retainer unit, wherein an end of the float arm is bent and is rotatably mounted in the boss through the retainer unit;
• and
• a float mounted at the other end of the float arm so as to rotate the float arm and the retainer unit according to an amount of the residual fuel.