Fuel Delivery
Fuel Filler Neck
A fuel filler neck carries fuel from the gas cap opening down into the tank, and a rusted one can leak fuel or vapor. We carry 31 fuel filler necks from $35 to $169 for vehicles from 1967-2013, with brands such as Dorman, Spectra Premium and Action Crash.
Shop fuel filler neck by vehicle
Why filler necks fail
Most filler necks are steel and sit behind the wheel well, where road salt, water and grit collect. Over time they rust through, often near the top under the fuel door or where the neck meets the tank hose. A rusted neck can drip fuel when you fill up, let in water, or leak vapor.
Common signs include a gas smell after filling, a wet spot under the rear of the vehicle, a check engine light for an evaporative leak, or a fuel nozzle that keeps clicking off.
Matching the neck to your vehicle
Filler necks are shaped for a specific body and tank, so fit depends on year, model, body style and sometimes tank size. Listed lengths in this category range from 11 in to 36 in, which shows how much designs vary. Compare the bends and vent tube layout with your old part.
The parts here are listed for gas vehicles. Clamps and fuel caps are not included with these necks, so plan to reuse good clamps or buy new ones, and check the condition of your cap and connecting hose.
Installation tips
Run the tank as low as you safely can before starting, and work outdoors or in a well ventilated area. Disconnect the battery, support the vehicle on jack stands, and keep any source of sparks away. Many jobs require lowering the tank or removing the rear wheel and inner liner.
Replace the rubber connecting hose if it is cracked or hard. After installation, fill the tank slowly and check every joint for leaks before driving.
Fuel Filler Neck questions
Can a bad filler neck cause a check engine light?
Yes. A rusted or cracked filler neck can let fuel vapor escape, and the evaporative emissions system may set a leak code. Check the neck, cap and vent hoses when you chase an EVAP leak.
Do these fuel filler necks come with a gas cap?
No. The filler necks listed here do not include a fuel cap or clamps. Reuse your cap if it seals well, or replace it at the same time if the seal is cracked or worn.
Which fuel filler necks fit a Chevrolet Malibu?
The Chevrolet Malibu is one of the most listed vehicles in this category, with 12 matching listings. Pick your year in the vehicle selector and compare the fitment notes for engine and body style before you order.