Fuel Tank Sending Unit

joe53HHjoe53HH Posts: 55Expert Adviser
Dropped the gas tank this weekend on my 53 Hornet. The tank doesn't look bad but the sending unit has holes in the float. Any suggestion as to a part number or place where I can get a replacement?
Thanks, Joe


  • allanallan Posts: 186Member
    Sure, the float is the same as Ford. Mac repro Ford parts has new brass floats reasonably priced. I just put one on my '52 and put 2 on the shelf.
  • Ol racerOl racer Posts: 2,446Senior Contributor
    Paul Shuster on this Forum sells new float / Senders
  • joe53HHjoe53HH Posts: 55Expert Adviser
    Allan, Did you replace just the float or the entire sending unit? If you replaced the entire unit does the fuel gauge appear accurate? The sales person at Mac stated the unit is 12 ohms full and 98 ohms empty. Does the positive ground affect the ohms reading?
  • Ken U-TxKen U-Tx Posts: 3,605Senior Contributor
    The sending unit doesn't give a rat's patooty about polarity, it only acts as a variable resistor to regulate the current.
  • Ken U-TxKen U-Tx Posts: 3,605Senior Contributor
    The sending unit PAUL SCHUSTER sells is a ford unit that has been recalibrated to HUDSON ohms specs. If you buy the CARPENTER unit from a FORD supplier, it will be off on the readings.
  • GlowplugGlowplug Posts: 1,646Expert Adviser
    While there are several means of repair the reality of how the Hudson Fuel guage and tank sender work are fundamental to the complete repair. 
  • allanallan Posts: 186Member
    I only needed to replace the brass float. Exact match.
  • joe53HHjoe53HH Posts: 55Expert Adviser
    Thanks to everyone for the information. Before I proceed I will try to measure the resistance in the old sending unit. If it is good I can then just replace the float. Otherwise I will get a new unit from Paul.
  • GeoffGeoff Posts: 3,538Senior Contributor
    Resistance should be in the range of 0 to 90 ohms.
Sign In or Register to comment.