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Are Fuel Tanks Interchangeable

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Mickjbecker, Dec 29, 2021.

  1. Dec 29, 2021 #1
    Mickjbecker

    Mickjbecker Bobtail Member

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    Dec 29, 2021
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    Probably have a stupid question but I have not found anything yet that has enough information so I am hoping someone here can help.

    I have a 1994 Kenworth K100 with a 3406C. The truck has short fuel tanks on it but now that I have stretched the frame, I am wanting to put the longer skinny tanks on. I found some freightliner tanks that are 150 and 120 gallon that I am gonna pick up this weekend. Got the tanks, straps and brackets.

    my question is, will I be able to make these tanks work on my k100? I can mount them but what else am I going to need to do? Hopefully someone has some insight or has done this and can help. Thank you in advance.
     
    Mickjbecker, Dec 29, 2021
    Mickjbecker, Dec 29, 2021
    #1
    Pamela1990 Thanks this.
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  3. Dec 29, 2021 #2
    beastr123

    beastr123 Road Train Member

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    As long as your K100 has dual feed/dual return plumbing and you connect them up right (feed lines to the feed connections and return lines to the return fittings) you should have no trouble. Insure all tanks have clear vents that will not allow moisture in.
    You may need to monitor you tanks to insure the smaller tank will not overfill by returning equally with the larger tank.
     
    beastr123, Dec 29, 2021
    beastr123, Dec 29, 2021
    #2
    AModelCat Thanks this.
  4. Dec 31, 2021 #3
    Rideandrepair

    Rideandrepair Road Train Member

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    Rideandrepair, Dec 31, 2021
    Rideandrepair, Dec 31, 2021
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  5. Dec 31, 2021 #4
    Dino soar

    Dino soar Road Train Member

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    The tanks themselves are interchangeable but the the hangers may be different from a freightliner to a kenworth.

    The tanks generally go by the diameter of them. If the ones on the truck now are a different diameter you may be able to just use the strap part from the freightliner, if the hangers are different.
     
    Dino soar, Dec 31, 2021
    Dino soar, Dec 31, 2021
    #4
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