Fuel Filler Pipe For 22-Gallon Fuel Tank Conversion Mustang 1965-1966

CJ's Part Number:
79% of 100


  • For 22 Gallon Tank Upgrade
  • Direct Fit Replacement
  • Steel Construction
  • Correct Notch For Gas Cap

Fuel Filler Pipe for 1965-1966 Mustangs with a 22-Gallon Fuel Tank Conversion.

If you are converting to the larger 22-gallon fuel tank found in 1970 Mustangs, or have already made the swap in your 1965 or 1965 Mustang, this all-new Fuel Filler Pipe from CJ Pony Parts is a key component to make everything work perfectly!

Features and Benefits:
- Direct bolt-on replacement
- Thick steel construction
- Correct notch for gas cap seal air vent
- Looks like an NOS part
- Provides six (6) extra gallons (almost 40%)
- No modifications required
- Includes everything you need!

Your 1965 or 1966 Mustang's original filler neck will no longer work with the new 22-gallon tank and must be replaced. This new Fuel Filler Pipe is designed to be a direct bolt-on replacement that lines up perfectly with the neck on the 1970 Mustang's 22-gallon fuel tank. The brand new, high-quality Fuel Filler Pipe is made from thicker steel compared to the original filler pipe found in the 1965 and 1966 Mustangs. It features the correct notch for the gas cap seal to let air in and is designed so that the gas cap fits tight.

This Fuel Filler Pipe is improved in every way possible over an original filler neck, but still looks like a NOS part. Modifications are not required to upgrade! It comes with everything you need to swap out that old, factory fuel tank with a new, larger 22-gallon fuel tank. This conversion will give you an extra 6-gallon capacity, which is almost 40% more fuel and range. Now you will be able to avoid frequent stops at the gas station and enjoy long road trips in your 1965 or 1966 Mustang with peace of mind.

Vehicle Fitment:
- 1965-1966 Mustang with a 22-Gallon Fuel Tank Conversion

California Residents: Proposition 65 Warning

Installation Videos

Video Transcript

We're here with conversion fuel filler pipes for your 1964 through 1968 Mustang. This is a factory 16-gallon tank found in your '64 through '68 Mustang. Over the years, it's been a popular swap to upgrade to this tank shown here, which is your '70 22-gallon tank. Basically, the main reason is because it's physically the exact same size and holds an additional 6 gallons of fuel. If use a 1970s setting unit your '64 through '68 fuel tank gauge will actually work properly, as well.

One of the drawbacks has always been the fuel filler pipe. The factory fuel filler pipe won't fit properly because this tank is obviously a lot taller and so we offer these filler pipes here. This is for your '64 through '66 and this will be for your '67 through '68, specifically designed to fit the 22-gallon tank when installing it in your early Mustang. These fuel filler pipes are sold separately. We do offer them in kit form which gives you the tank, the filler pipe, and the setting unit, basically everything you need to convert your '64 through '68 to a 22-gallon tank.

Vehicle Fitment

This product will fit the following Mustang years:

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