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Trailer Wiring Harness Adapter Installation - 2006 Dodge Ram 1500

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Dodge Ram Pickup Wiring

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Installation of a Wiring Harness Adapter on a 2006 Dodge Ram 1500

Today we are going to install part number 37185 on an 2006 Dodge Ram 1500. And this has the factory 4-pole installed with the vehicle, from the factory. What we are going to do is upgrade this up from a 4-pole to a 7-pole and 4-pole combination. And we are going to start by using this factory cut-out here for the 7-pole itself. It is actually just a cover. It just pops off, and we can install our 7-pole adapter right there. Before we install this into the bumper, we have to do one little modification, because the bumper is just a little bit too small. Basically we are just going to grind the little edge off here, just about 1 inch on the passenger side - just enough to help it pop into place, right here. Go ahead and install it. There it is, just enough room to snap into place. Then we will put our four bolts in to hold it secure.

OK, once that is installed we can go ahead and make our electrical connections. We have our factory 4-pole here. Let us go ahead and take off the cover, and then we will install the adapter onto it. It is a good idea to add some dielectric grease. This has some on this side. Let us go ahead and add a little bit to the other half. All right, I am going to run a zip tie around to secure it, too, so it will not ever come apart. Now we will go ahead and do our ground screw. What we will do is run it through the frame here. We will just put it at the bottom edge of the frame here, like so. And we will use a ground screw to install it. Now we have got the rest of the wires to contend with. And we are just going to wrap these up and just zip tie them to the existing factory parts. We are not installing a brake controller hot lead. That is what these two wires would be for: blue would be for the brakes, the black would be for the hot lead, and the purple wire would be for the reverse lights. We will bundle these up and put it up against the parts. Now I have tucked it out of the way and we can get to it easily for future expansion. And that covers our install of part number 37185 on our 2006 Dodge pickup.

Questions and Comments about this Video

I am looking to upgrade my 07 ram 1500 from the 4 pin to the 7/4 combo, but I also will need to add a brake controller. This video doesnt go far enough for me. I need to know how to make the rest of the connections on this harness. Please help!

comment by: Justin D - 2/17/2014


We have a video of a complete A to Z install on a 2001 Dodge Ram that includes both the brake controller and the ETBC7 and how to install the whole system. I have also added a link to a tech article about brake controller installs on Dodge trucks.

Patrick B - 2/18/2014

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Dodge Ram Pickup Custom Fit Vehicle Wiring Videos

Hopkins Endurance Fifth Wheel Wiring Harness Installation - 2011 Dodge Ram Pickup

All right, today on this 2011 Dodge Ram pickup, 3500 series crew cab, we're going to install part number 41157. This is a Hopkins Endurancefifth wheel wiring harness, with a seven pole connector. OK, to start off our install, we need to find a location for our socket that we're going to install in the bed. Once we have that planned out, we'll go ahead and drill a quarter inch pilot hole Then we'll go back at it with a two inch hole saw OK, once we have our hole made, we'll go ahead and take our wire harness and run it through the hole. Well take the one end with the two connectors and go ahead and push it through the hole, and then let it fall out the bottom, then push the rest of our slack in place. OK, and then we'll save the other end to install into our seven pole connector We'll put some of the supply unintelligible 00:00:49 grease onto the terminals on the inside edge, then snap the two halves together. OK, once we have them together, we can go ahead and put the seven pole connector into the hole. And then we'll go ahead and use the provided hardware to attach it to the bed. Now the hardware is four self-tapping screws and washers. We'll position our seven pole connector, and then install our screws one at a time. We leave them loose until we have them all installed, and then we'll go ahead and tighten them down for good. All right, now go underneath the bed of the truck, and we'll go ahead and route our wire harness towards the bumper and towards the back side of the bumper where pre-existing seven pole connector is. Now we need to go ahead and disconnect the seven pole from the wire harness. We'll push down there's a small tab that we need topush down, and then we can go ahead and separate the connector from the wires. We'll let that go for now, and then we'll go ahead and take our new Hopkins wire harness and we'll get it ready to plug in the two halves. We'll go ahead and add the remainder of the unintelligible00:01:41grease on the terminals, and then just plug the two matching ends together. Again , we want to make sure everything remains snapped, so we know we're secure. OK, then we'll go ahead and take our extra length of wire and go ahead and route them up and out of the way, and secure them with some zip ties. One last thing is the white wire from the ring terminal.We need to ground that to the frame, so we'll go ahead and use a self-tapping screw to do that. In this case, we'll be using a number fourteen self-tapping screw. And with that, that will finish up our install of the Hopkins Endurance fifth wheel ninety degree wiring harness, with the seven pole plug, on our 2011 Dodge Ram pickup, 3500 series truck. .

Trailer Wiring Harness Installation - 2004 Dodge Ram Pickup

Today on our 2004 Dodge Ram Pickup we'll be installing the Tow Ready Four Pole Hardware Kit with Insulated Butt connectors, part number 20250. Now this vehicle is already equipped with a manufacturer's four pole connection. But, as we remove the cap, you'll notice that it's severely corroded and the terminals are starting to breakdown. So we're going to go ahead and cut off the old manufacturer's four pole connection, and then we can hardwire in a new four pole lead. Our new four pole will match color for color, except for the ground wire, which will be black on the manufacturer's side and white on the new four pole lead side. To make easier access now that we've got the end cut off, we'll go ahead and remove the push pin that secure the wiring. Next we'll go ahead and remove the wire loom and any protective covering. We just need a little room to work so we can add our butt connectors. Next, we'll strip back each one of the wires. Now with each wire stripped back, we'll go ahead and add the butt connector. With our butt connectors added, we'll now bring in our four pole lead and match color for color with the exception of our ground wire which we will match black to white. Then we'll go ahead and and wrap up this connection point with some black electrical tape to help keep out any dust, dirt, debris, or moisture. Now with our connection point secure, we'll go ahead and reinstall the push pin fastener and route the wiring to the center of the vehicle and to the hitch. Note we'll secure any wiring as necessary with additional black zip ties, and will cut off the excess of the zip tie to clean up our install look. That does complete our install of the Tow Ready Four Pole Hardware Kit with Insulated connectors, part number 20250, on our 2004 Dodge Ram Pickup.

Fifth Wheel and Gooseneck Wiring Harness Installation - 2010 Dodge Ram

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Fifth Wheel and Gooseneck Wiring Harness Installation - 2005 Dodge Ram

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Today on our 2012 Dodge Ram 3500 dual rear wheel, we'll be installing the Pollak fifth wheel goose neck T-connector with seven pull, part number PK11893-11932. First, we'll go ahead and locate a suitable location for our new seven pull connector. Here, just behind the rear wheel on the driver's side is a common position. Go ahead and locate the area, check underneath to make sure there are no obstructions, and then we'll go ahead and use a small pilot hole and drill it out. This will allow us to again get underneath and double check where the pilot hole location is and correspond it's where our seven pull connector will be. With that done, we can now go ahead and take the hole saw and cut out the larger hole to fit the seven pull connector.

Fifth Wheel and Gooseneck Wiring Harness Installation - 2012 Dodge Ram

Today on our 2012 Dodge Ram 2500, we are going to be installing the Pollock fifth wheel and gooseneck T-Connector with seven-pole wiring part number PK11893-11932. First, we need to begin by finding a suitable location for our seven-pole in the bed. Just here past the cut out in the bed behind the drivers side wheel well is where we are going to mount our sub pole connector. First step will be drilling a pilot hole. Ill take my eight-inch bit which will be the same as the pilot hole for hole saw that we will need to cut out. Now I can go underneath and check to make sure its not going to run into anything.

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