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Has anyone installed a 7pin trailer plug on a 4cyl?

Discussion in '4 Cylinder' started by The Hunter, Dec 15, 2017.

  1. Dec 15, 2017 at 8:41 AM
    #1
    The Hunter

    The Hunter [OP] Sailing the high Puddle's

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    looking for a write up for a 7 pin install on a 4 pin only truck. Can’t find one.
     
  2. Dec 15, 2017 at 9:30 AM
    #2
    t3mpo

    t3mpo Well-Known Member

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  3. Dec 16, 2017 at 12:05 AM
    #3
    Z92720

    Z92720 Well-Known Member

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    URD MK3 Stage II supercharger & equal length LCE header, BAK Revolver X4 bed cover, 265x50x20 Tires on 7.5” x 20” wheels
    Unless your truck has no tow pkg wiring you’re better off using an adaptor that does just what you’re asking. I carry one in my console always. Think I bought it from autozone 2 or 3 years back, less than $10.
     
  4. Dec 17, 2017 at 5:28 PM
    #4
    Crooked Beat

    Crooked Beat Well-Known Member

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    I have done it.
    Resettable fuse off of battery. One wire through the firewall. Other wires through the plug under the drivers seat and then drivers side kickplate to the area underneath the steering wheel. Then back to the drivers side tail light where you connect all wires to the flat four harness and then to the 7 pin. I don't tow that much and we get lots of salt in the winter, so I put the 7 pin harness in the drivers side bed storage bin - no corrosion. I cut out the middle hole there a bit to accept the 7 wires and made a long tail so the harness goes out over the tailgate to the trailer. Used lots of wire loom.
    Any U-Haul or pickup shop can do the job. It is just a bit more time consuming without the pre wires on a 6 cylinder.

    4 cylinders with a brake controller are rare, but they are out there. Two of my trailers came with electric brakes, but both are only 1000 ponds. Safety first.
     
    Last edited: Dec 18, 2017
  5. Dec 18, 2017 at 8:28 AM
    #5
    7r41lbr34k3r

    7r41lbr34k3r Practitioner of the mechanical arts.

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  6. Dec 18, 2017 at 8:36 AM
    #6
    ToyRyd04

    ToyRyd04 Taco Transformer

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    https://www.etrailer.com/p-etbc7.html

    This is exactly what you need, an easy 4 wire hookup. I'm using the same one.

    Im sure one of the NJDB will give you a hand with the wiring, pretty straight forward.
    Splurge a bit and get a decent brake controller.

    Assume your getting this for a trailer w/brakes? or want to have reverse and/or aux power running to it.
     
    The Hunter [OP] likes this.
  7. Dec 18, 2017 at 8:47 AM
    #7
    The Hunter

    The Hunter [OP] Sailing the high Puddle's

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    Thanks guys! Greg no brakes on the trailer I just want it for extra power leads! MOAR ELECTRONICS. Lots of lights and other stuff
     
    ToyRyd04 likes this.
  8. Dec 18, 2017 at 8:59 AM
    #8
    ToyRyd04

    ToyRyd04 Taco Transformer

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    Right on, yup that kit will do it.
    Plug that 4 pin, ground the new Negative wire in the kit and then run the power up to the battery up to a resettable fuse breaker and then to the battery Positive and your all set.
     
    The Hunter [OP] likes this.
  9. Dec 27, 2017 at 11:10 AM
    #9
    uwu

    uwu Well-Known Member

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