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What is a Fuel Hose?

Carol Francois
Carol Francois

A fuel hose is a rubber or plastic composite hose that is used inside combustion engines to move the fuel from the fuel storage tank to the engine. The fuel hose is secured to the tank and engine with the use of metal clamps. The same type of material is used for a multitude of hoses for cars, trucks, boats and other motorized vehicles.

This type of hose is often used to drain gas tanks and siphon combustible liquids. The inside of the hose is lined with thick rubber with built in anti-static properties. This reduces the possibility of static electricity forming and igniting the fuel, which would create an explosion.


Fuel hoses are available from a wide range of car, boat and truck part stores. Make sure to purchase the exact fuel hose for your vehicle. Each type of vehicle has a different length hose and the diameter of the hose itself varies between vehicle manufacturers. Review the product manual provided with your vehicle and read the schematics to gain an understanding of where the fuel hose is, its proximity to other equipment within the engine and the distance the hose runs.

Any damage to a fuel hose will result in fuel leakage, a gasoline smell in the vehicle and very sluggish engine response. If you suspect a fuel hose issue, take your vehicle to a licensed mechanic to diagnose the problem. There are many possible causes for poor engine performance and it is important to obtain the correct information before attempting to repair the vehicle.

If you need to replace a fuel hose, it is important to complete all the necessary safety precautions when dealing with gasoline. Ensure the space is well ventilated, have a fire extinguisher handy and disconnect the battery before you begin. Never forget that gasoline is designed to combust and can cause a great deal of damage.

Purchase the new fuel hose from your local automobile supplier and read through your maintenance manual before you begin for any special instructions. Loosen the metal clamps that secure the fuel hose at one end. Have a bucket close by and then undo the other side. Catch any excess gas that was in the fuel hose in the bucket. Put the old hose in the bucket for disposal later.

Attach the new hose using the provided clamps. Visually and physically check the connection to ensure that it is tight. Dispose of the excess gasoline and the fuel hose following the rules for gasoline disposal in your area.

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