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Replacement 4 pin plug for back of 09 Tacoma

Discussion in 'Towing' started by bigmooze, Jun 21, 2010.

  1. Jun 21, 2010 at 4:46 PM
    #1
    bigmooze

    bigmooze [OP] Well-Known Member

    Joined:
    Jan 10, 2009
    Member:
    #12437
    Messages:
    811
    Gender:
    Male
    First Name:
    Richard
    Belle River, ON
    Vehicle:
    2009 4x4 access cab SR5
    Bilstein 5100's all round (0" up front with stock springs), 265/75/16 Goodyear Wrangler Duratracs, K&N 63 Series Aircharger Kit, Flowmaster Super 44 Muffler, Delta Champion Toolbox, fog lights, back-up lights, Sirius satellite radio with PA15-TOY, Midland 1001z CB radio with 2' Firestik II antenna, Weathertech floor mats, AVS sill protectors, Marathon SuperHides Seatcovers (Universal Digital Camo), trimmed front mud flaps, Viair 20005 OBA, Warn W650D driving lights and W650F fog lights on N-Fab light bar, Hi-Lift X-treme jack with off road accessories, TracRac "TracONE" system
    Went to hook up a trailer on Sunday, to find severe corrosion on the brake pin of my 4 pin connector. There doesn't seem to be much contact material left so I believe I'm into replacing the connector.

    I'm looking for the pigtail piece of the OEM trailer wiring harness. From inspection, the plug disconnects from the rest of the harness, which continues to the fron of the truck. I only want to replace the 4 pin connector if at all possible.

    Can anyone help me with a part number?
     
  2. Jun 24, 2010 at 2:50 PM
    #2
    Crooked Beat

    Crooked Beat Well-Known Member

    Joined:
    Sep 5, 2008
    Member:
    #9017
    Messages:
    130
    GTA
    Vehicle:
    09 Tacoma
    After battling corrosion with flat 4 and round 7 connectors for 20 years on trucks, I did the following:

    Cut wires. Go to CDN Tire and get a new connector with extra long wire. If Princess Auto is nearer go there it is cheaper. Feed wire down threw drivers side bed storage bin. splice wires. Store connector and wire in bin. No more corrosion. Take out when needed, put over tailgate and put a towel on tailgate if you are really anal to protect against paint rubbing.

    PM me for photos if you want.

    After 20 years the problem is solved once and for all.
     
  3. Jun 24, 2010 at 4:28 PM
    #3
    bigmooze

    bigmooze [OP] Well-Known Member

    Joined:
    Jan 10, 2009
    Member:
    #12437
    Messages:
    811
    Gender:
    Male
    First Name:
    Richard
    Belle River, ON
    Vehicle:
    2009 4x4 access cab SR5
    Bilstein 5100's all round (0" up front with stock springs), 265/75/16 Goodyear Wrangler Duratracs, K&N 63 Series Aircharger Kit, Flowmaster Super 44 Muffler, Delta Champion Toolbox, fog lights, back-up lights, Sirius satellite radio with PA15-TOY, Midland 1001z CB radio with 2' Firestik II antenna, Weathertech floor mats, AVS sill protectors, Marathon SuperHides Seatcovers (Universal Digital Camo), trimmed front mud flaps, Viair 20005 OBA, Warn W650D driving lights and W650F fog lights on N-Fab light bar, Hi-Lift X-treme jack with off road accessories, TracRac "TracONE" system
    Thanks for the idea. I decided to remove the no-good connector and replace it with a 7-pin unit. I plan to install a brake controller in the next couple of weeks so I'll use this opportunity to add the new 7-pin. I'll use a 7-to-4 adapter when I'm towing a trailer with no brakes.

    FYI, you can't buy the 4-pin pigtail alone. It comes as part of a ~$300 kit. It's way cheaper to solder my new connector on and heatshrink everything to protect the connections.

    Oh, and I'll cover the pins in dielectric grease this time - foolishly, I never used that before.
     
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