Trailer Wiring Harness
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Elder User
Joined: Jan 2012
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From: Phoenix, AZ
Trailer Wiring Harness
Anyone know what the part number is for the trailer wiring harness that would plug into the connectors on the underside of the truck on the drivers side near the hitch?
Senior User
Joined: Jun 2005
Posts: 322
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From: Calgary, AB, Canada
Part # BC3Z-13A576-A
It comes with all the mounting hardware and the direct connections. No instructions, but it's pretty straight forward.
I installed mine last weekend, and let me tell you, it was a thing of beauty to just plug right into the existing wiring harness with no cutting, splicing, taping, etc...
It comes with all the mounting hardware and the direct connections. No instructions, but it's pretty straight forward.
I installed mine last weekend, and let me tell you, it was a thing of beauty to just plug right into the existing wiring harness with no cutting, splicing, taping, etc...
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Elder User
Joined: Jan 2012
Posts: 675
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From: Phoenix, AZ
Part # BC3Z-13A576-A
It comes with all the mounting hardware and the direct connections. No instructions, but it's pretty straight forward.
I installed mine last weekend, and let me tell you, it was a thing of beauty to just plug right into the existing wiring harness with no cutting, splicing, taping, etc...
It comes with all the mounting hardware and the direct connections. No instructions, but it's pretty straight forward.
I installed mine last weekend, and let me tell you, it was a thing of beauty to just plug right into the existing wiring harness with no cutting, splicing, taping, etc...
Out of curiosity how long was the cable?
As I need to put it in front of the bed of the truck for my slide in (cabover) camper, not at the rear like you would do for a 5'ver.
Senior User
Joined: Jun 2005
Posts: 322
Likes: 2
From: Calgary, AB, Canada
The connectors are just behind the rear outlet, next to the spare, they're nicely connected to the frame.
Maybe there's another set of connectors at the front? If not, I'm pretty sure you'll be forced to splice in a length of wire.
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Elder User
Joined: Jan 2012
Posts: 675
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From: Phoenix, AZ
Not long enough I'm afraid. I'd say it's maybe 5-6' long at best.
The connectors are just behind the rear outlet, next to the spare, they're nicely connected to the frame.
Maybe there's another set of connectors at the front? If not, I'm pretty sure you'll be forced to splice in a length of wire.
The connectors are just behind the rear outlet, next to the spare, they're nicely connected to the frame.
Maybe there's another set of connectors at the front? If not, I'm pretty sure you'll be forced to splice in a length of wire.
OK, Thanks again.
I will check for another connector but I am not holding my breath on that...
I guess I will just get a regular connector and splice it in further to the front of the bed and call it good.
Senior User
Joined: Nov 2011
Posts: 306
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From: FLG AZ
Fishingnut,
I used this: 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug - GM, Ford, Dodge, Toyota - 9' Long Bargman Wiring 51-97-410
It's plenty long enough to run from the existing 7 way connector up to where I mounted it (above the gas filler door in the bed). It does not connect to the factory camper harness plugs but instead plugs into the factory harness that goes to the 7 way and then into the 7 way. Just a big long jumper cable with a connector in the middle.
On my Camper, I was able to use a 3 foot double female 7 way to connect between the jack in the bed and the jack on the camper. Works great.
I used this: 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug - GM, Ford, Dodge, Toyota - 9' Long Bargman Wiring 51-97-410
It's plenty long enough to run from the existing 7 way connector up to where I mounted it (above the gas filler door in the bed). It does not connect to the factory camper harness plugs but instead plugs into the factory harness that goes to the 7 way and then into the 7 way. Just a big long jumper cable with a connector in the middle.
On my Camper, I was able to use a 3 foot double female 7 way to connect between the jack in the bed and the jack on the camper. Works great.
Posting Guru
Joined: Jan 2004
Posts: 1,539
Likes: 1
From: Snohomish, Washington
You cant use that plug for the camper. You are supposed to run a much larger fuse from the battery to that camper plug in for constant power. Mine is a 150 amp fuse but anything over 40 will probably work. Plus the charge wire that is on the trailer brakes is only a 14 gauge wire. Way to small for a camper charge wire (you will melt it) Go online and look for a camper plug that ties into the wire along your frame rail or build one yourslef. They make kits for them but I have heard the wires are too short and you need to add wire to it anyway.
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Posting Guru
Joined: Jan 2004
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From: Snohomish, Washington
Fishingnut,
I used this: 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug - GM, Ford, Dodge, Toyota - 9' Long Bargman Wiring 51-97-410
It's plenty long enough to run from the existing 7 way connector up to where I mounted it (above the gas filler door in the bed). It does not connect to the factory camper harness plugs but instead plugs into the factory harness that goes to the 7 way and then into the 7 way. Just a big long jumper cable with a connector in the middle.
On my Camper, I was able to use a 3 foot double female 7 way to connect between the jack in the bed and the jack on the camper. Works great.
I used this: 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug - GM, Ford, Dodge, Toyota - 9' Long Bargman Wiring 51-97-410
It's plenty long enough to run from the existing 7 way connector up to where I mounted it (above the gas filler door in the bed). It does not connect to the factory camper harness plugs but instead plugs into the factory harness that goes to the 7 way and then into the 7 way. Just a big long jumper cable with a connector in the middle.
On my Camper, I was able to use a 3 foot double female 7 way to connect between the jack in the bed and the jack on the camper. Works great.
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Senior User
Joined: Nov 2011
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From: FLG AZ
I had to add the plug to my 3 ft connector cable so wired that using the 10 gauge black/white for charge to the camper. Seems to be working.... Of course, the trailer I'm pulling isn't using any charge power since it's a two horse trailer with no power other than lights.
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Joined: Jan 2004
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From: Snohomish, Washington
Thats just it. The next guy that has your truck might. How does a horse trailer stop? electric brakes?
I am just saying I have had several campers and the way to do it is not splice that power wire into the existing plug. Even for a Fifth wheel I would not want to do it that way but I guess its the same as pulling a trailer with the Fridge, batteries and everything else.
I am just saying I have had several campers and the way to do it is not splice that power wire into the existing plug. Even for a Fifth wheel I would not want to do it that way but I guess its the same as pulling a trailer with the Fridge, batteries and everything else.
Senior User
Joined: Nov 2011
Posts: 306
Likes: 1
From: FLG AZ
Yep, electric brakes. That wire is not connected to the Camper so shouldn't be impacted. As you said, it's not really any different that having a trailer with fridge ect. plugged into the bumper 7 pin. Wire gage on the harness seemed to be as large or larger than the factory harness.
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