Fuel sending unit 6V vs 12V. 55 Bird

[HRUVDT564]

I have a 55 Thunderbird which the fuel gauge has never worked. I am thinking the sending unit is probably bad and want to replace it. The car has been converted to a 12 V but I don’t know about that sending unit or if the fuel gauge is 12v or 6v ..,Should I get a 6 V sending unit or 12 V sending unit to use as a replacement?

I have cleaned out the gas tank, ran new fuel lines and installed a electric fuel pump now to complete the task

 

[SWinner]

Fuel Gage & Sending Unit Set - 12v - 56 Replacement

Max88, I have a 56 T-Bird and the fuel gauge never registered correctly. I purchased a new sender and matching gauge from CASCO and it works perfectly. See https://www.classictbird.com/Fuel-Gage-Sending-Unit-Set-12v-56-Replacement-1-Per-car/productinfo/9280B/

I believe this would be your answer for 6 to 12 volt conversion. Talk to CASCO and see if this would work for you. They are very knowledgeable on early birds.

Good luck,
Steve

 

[CSPIDY]

All fuel gauges on 55-57 birds are 6 volts, the 56/57 have a voltage converter to reduce the voltage at the gauge to 6 volts.

 

[doug7740]

All fuel gauges on 55-57 birds are 6 volts, the 56/57 have a voltage converter to reduce the voltage at the gauge to 6 volts.

If that is true then why does CASCO state:

Item Number: 9275B - Fuel Sender - Use With 56 Dash Unit - 1 Per car

Detailed Description

This is for use with original gauge. Not for use with our reproduction gauge and sender set. Only use for 1955 if converted to 12 volt and the dash gauge has been changed to 12 volt as well. Ohm range 100-300 Full-Empty

doug7740
1955 Thunderbird Blue

 

[CSPIDY]

I only stated the voltage requirements for the gauges, part numbers can be different between years not to mention after market parts being matched properly. Just trying to help trouble shoot the problem that works better than throwing parts at it

 

[Tacweld]

I have a 55 Thunderbird which the fuel gauge has never worked. I am thinking the sending unit is probably bad and want to replace it. The car has been converted to a 12 V but I don’t know about that sending unit or if the fuel gauge is 12v or 6v ..,Should I get a 6 V sending unit or 12 V sending unit to use as a replacement?

I have cleaned out the gas tank, ran new fuel lines and installed a electric fuel pump now to complete the task

Max, I have a 55 converted to 12v that I replaced the sending unit this fall, p/n T-9275A which is 6v. This is the same unit that was in the car when I purchased it. The old sending unit float arm was shortened, and I still have to complete that task, otherwise this sending unit operates fine.

 

[HRUVDT564]

Max, I have a 55 converted to 12v that I replaced the sending unit this fall, p/n T-9275A which is 6v. This is the same unit that was in the car when I purchased it. The old sending unit float arm was shortened, and I still have to complete that task, otherwise this sending unit operates fine.

If you don’t mind, where did you purchase the sending unit?

 

[Tacweld]

If you don’t mind, where did you purchase the sending unit?

Larry's T-Bird Parts. Good Luck.