AF: Fuel tank sending unit for 36-gallon plastic van tank | Allpar Forums
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Fuel tank sending unit for 36-gallon plastic van tank

Discussion in 'Vans' started by 52Dodgecoronet, Dec 9, 2016.

  1. 52Dodgecoronet

    52Dodgecoronet Active Member

    Feb 25, 2010
    Looks like Smalljournal wasn't able to find a sending unit for the 36-gallon plastic tank:

    Plastic fuel tank with horizontal sender

    I need one, too. Could anybody provide the part number? It's different from the sender for the standard 22-gallon tank.

    If they're NLA, any suggestions about how to swap parts over from a new sender to the old one to make the old one work again, maybe?

    Thanks a lot!
  2. ImperialCrown

    ImperialCrown Moderator
    Level III Supporter

    Jun 8, 2008
    I see common Mopar part #'s of 4075128, 4075384 and 4075382. All discontinued, but using these part #'s for a Google, used or NOS search may help.
    A common problem is the wiper losing contact with the resistance shoe. The gauge will sit at 'E' or work intermittently. There is rumors that high ethynol content of modern fuels will 'coat' or damage the wiper/shoe contacts.
    Sometimes it can be gently bent back to make contact with the shoe and be OK for awhile.
    If it is worn beyond repair, sender parts from a different assembly may work. The E-to-F resistance range was a corporate standard for many years on many models. Mopar, Ford and AMC looks like about 73Ω empty and 10Ω full. The sender tank ground must be clean and secure to the chassis:
    Universal Fuel Sender Questions and Troubleshooting
    JC Whitney sold 'universal' tank units that provided a working fuel gauge in custom applications.
    paullybob likes this.
  3. paullybob

    paullybob Well-Known Member

    Mar 22, 2006
    Like Imperial said, you're probably going to have to use a Universal sender unit.....Stewart Warner brand comes to mind. Be mindful of the resistance range or you could end up with the same final result...a tank that reads full when empty or vice versa.

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