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Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter

Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter

Item # 20036
Our Price: $20.09
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Trailer Wiring
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Tow Ready Plug and Lead Trailer Wiring - 20036
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Trailer wiring adapter changes the 4 pole flat on your vehicle into a 5 pole flat. Great Prices for the best trailer wiring from Tow Ready. Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter part number 20036 can be ordered online at or call 1-636-306-4830 for expert service.
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Tow Ready Trailer Wiring - 20036

  • Wiring Adapters
  • Single-Function Adapter
  • 5 Flat
  • Plug and Lead
  • 0 - 5 Feet Long
  • 4 Flat
  • Tow Ready

Trailer wiring adapter changes the 4 pole flat on your vehicle into a 5 pole flat.


  • Length of harness: 20"
  • Length of blue wire: 60"

The blue wire gets spliced into the reverse light wire on the vehicle which is easily done with the included quick splice wire connector.

20136 Tow Ready 4 Pole to 5 Pole Trailer Wiring Harness

California residents: click here

Video of Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter Installation - 2015 Toyota Highlander

Today in our 2015 Toyota Highlander we're going to be showing you how to install the Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter, Part Number is 20036. Now our installation's going to begin by attaching our blue wire that's going to come with the kit to the reverse light wire, so that the wire that becomes hot or turns on are reverse lights. Now they're in the door in the hatch of the Highlander here, so we're going to go in to one of the wire looms located inside. We're going to go to the one that's on the left side here, and we'll just pull the boot up of the bracket that's holding it down. What we're going to do is just slide that loom up, get it out of the way now where we can get into our bunch of wires here. The wire that we're looking for is going to be a red wire. The good news is that there's only 5 of them. We only have to test 5 wires to figure out which one's going to be which, it should be this thicker one here but we'll see in a minute.

To test it out to figure out which one we need, we got somebody in the vehicle, of course they've put their foot on the brake, turn the ignition on, and they put the car in reverse. Now we're going to take this regular test light, our ground clamp, we can go right down to the latch that holds the door close. Let's go through it and test wires, with the reverse lights on we should be getting a signal to the wire. Let's start connecting, let's see, all right, nothing on that one, our next here, all right. Now in that red wire I'm getting the signal. What we're going to do is have our partner now take the vehicle out of reverse. Right, it goes off, back into reverse, comes back one, and then out of reverse, so we know that's the wire we're looking for.

Then we take a look here. There's 5 red wires in the loom, this is the thickest of those wire, just to give you an idea of what you're looking for there. Now the wire that comes with the kit, 60 inches long, that's not going to be quite long enough for us to make it down to where we want to go, so we're going to add on just a little length of wire. Just a piece of wire we have laying around the shop here. A little bit larger in size to the wire that we've got there. As we see here it's going to be the same diameter as the wire that we're running. We'll just make a Heat Shrink Butt Connection at the end of those to keep it nice vapor sealed.

We've got a quick connect, quick connect will slide on the wire, take our add on wire and slide on right behind there, hold that bolt together, where we can click that metal tab down. We'll going to squeeze that until that metal tab goes all the way down flush, has a good grip on both of our wires. Then we'll just bring that cover over and click it close. Then what we'll do is just slip that out to our cover here. You can bring that down. It's going to go over the top of that quick connect that we had.

Then I'm going to try to do is bring that wire out through the boot right up here on the top. We'll take a little tiny Philips screwdriver, we'll poke it through there just like that. Tape this white wire here that we've added, I'm going to tape it under the screwdriver and then just try to pull that through that rubber grommet. Take this off, we'll pull the rest of that through. As you're pulling it through you don't want to get too rough with it. You don't really want to stretch that grommet out, we like it to hold right around that wire and give us a nice little seal. Just ease it it on through. All right. As you can see, pretty nice clean looking install. Let's slide that, cover it back on, and try to get it in place. If you see another 4 push tabs, 1, 2, 4, and then 1 on that back side, it's going to be easier to pull that out and get that gasket back around, than it is to fight with it when it's still in there. Just press those tabs and it will come up and out. I'm going to get that stretched all the way around, and then poke it back in just like that, perfect. Now we'll bring our wire all the way around, and what we're going to do to get it outside is I'm going to tuck it right in behind our taillight housing, and run it down and out of the bottom of the vehicle. They'll appear in the top and all the way around there's a nice gasket. I'm just going to tuck that wire right along, behind the back side of that gasket, bring it all the way. As you can see it hides it really well. You can take a pick or a screwdriver or whatever you want, and just work it in all the way around that. You really won't be even able to see it once you get done. Now let's take off the 2 10 millimeter headed bolts that we got, just a 10 mil socket, get in there, remove these out of the back of the taillight housing. Always pull out towards the rear of the vehicle, wiggle it a little bit. If they don't come freely, we'll trim removal tool, plastic screwdriver, plastic spatula, or something. Just work it out a little bit. Basically we've got a little pressure clip right here, then another little clip there. What we'll do is just move this long enough so we can get our wire down past, and we'll continue running to where we can tuck it behind the bumper right here. Place these 2 screws. We've got a piece of airline tubing here, but you can use coat hanger, or a stiffer piece of wire, whatever. We'll just going to run it down alongside here, and see if we can get this to come out below the vehicle where we can grab it and direct the wire down there where we're going to want it. Now we're going to remove the panel here and take a look and see if our pull-wire isn't locate right behind it. To do that we've got 1, 2, 3, 4, and 5 fasteners, you'll need a 10 millimeter socket for them, and then there's just a push pin fastener there. Let's start backing these out. The interior tucked right in here beside the spare. These are just a little push nuts, these are something you can remove just by hand. If they get twisted, a 12 millimeter socket will go over those good. All right. Then the last thing will be a little push pin fastener there, a little screwdriver or pick, pull the center out, and then the outside will come with it. Pull it down, and here we'll see our fish wire which is great. Now let's connect our white wire to it. Here is the white wire, place it right in the end of that tubing, we'll tape it off to your coat hanger, or other wire, whatever you've used, and then just pull away. If starts to get hung here at the top you can pry it out just slightly with a screwdriver, just to allow it to pass in. Then once you get to the wire it should be super simple to drive through. What we're going to do is tape our blue wire off to our white wire. We're going to draw that up slightly, and we want to get our connection where we put our Butt Connector, we're going to hide it in here behind the bumper. That way it's away from any moisture and stuff like that. If we pull up on what we went down, we can get that wire up here and then draw it back in behind our bumper. We want our Butt Connector to be about right in here, maybe right in here, somewhere protected, so that's going to wire down about right there. We'll trim it off, strip the end off, add the Butt Connector, crimp that off, let's strip the end of our blue wire, all right, nice and snug. Now we can take a heat gun, or a lot of times if I'm just doing one like this, I just use a lighter. You want to use the lower part of the flame, so that's yellow and then blue, you try to use that blue part, you'll have a lot less of the black carbon. We'll just heat this up. That's going to start to shrink, there's a nice sealing in there. All right, so nice and sealed off, let it cool for just a second, then for extra little layer of protection with an electrical tape. Get rid of our white wire, we're done with that, now we can use our blue wire to get that pulled down and in. Just like before, with a little pick or a little screwdriver push that back behind our rubber stripping. Now we'll just route our wire, over here towards the 4 Pole connector. Notice the wire loom that runs over for the 4 Pole right here, we'll take a couple of those zip ties there and just secure our wire off here. We don't want it to be pulling down from the tap, give a little bit of slack there. Don't want too much tension on it. We're going to bring that right over here, we got a little bit of extra, which is good in case we ever need any repairs. Zip tie that off there, and that'll leave our connector back here where we wanted. Your customers are going to want to plug into this, so we'll mount it right there, should make it easily accessible for him to get to it. Also keep it up out of the way. Now then just trim off the excess. There's an option to clean up the look of the install, we can take some electrical tape. We just go around that blue wire, it's going to clean it up, make it look a lot more like a factory harnessed one. Right now to test it out what we're going to do is take our 4 Pole Plug in that comes as part of the adapter, you can see here, this is the 5 Pole, here is our 4 Pole. Take our cap off our existing 4 Pole, we're going to slide that in. In here you can see our add on. We're just going to plug in the blue wire from that, right into that reverse light circuit. Now what we're hoping for is that we'll have . The normal lights are going to run right through here, that's not an issue, but we want to test this last one, this fourth, the new add on plug. With our vehicle in reverse, foot on the brakes, somebody in there, we're going to hit it with the test light, as you can see we're getting a great signal. Now we'll be able to plug our harness right into that and have that deactivation when we want it back up. When not in use, pull the plug, and just recap just like that. If you choose to, you can also wire this. This will be tucked up underneath the vehicle, and this will be exposed on the rear. This should work fine with most of the 4 Poles that you'll plug in, unless if it has that rubber shroud that goes all the way around, it may interfere as you try to plug it in. Just keep that in mind if its got that on it. Now our panel need to go right back up where we found it here. Tuck it in behind and then just push it, there it go. The tin push studs here, I like to do those first, I'm just going to push up on them. That'll hold it in place while we get everything else going. All right, with that working at it should that's going to complete the installation of the Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter, Part Number is 20036 in our 2015 Toyota Highlander. .

Customer Satisfaction Score:

Customer Reviews

Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter - 20036

Average Customer Rating:  4.8 out of 5 stars   (231 Customer Reviews)

Trailer wiring adapter changes the 4 pole flat on your vehicle into a 5 pole flat.


My Ford Edge with the tow package had a 4 pole harness and my boat trailer had a 5 pole harness with the extra wire for locking out the brakes when reversing. This adapter was easy to install and works like a charm. No more need to use a lock out key when reversing the trailer.


My trailer has a five plug harness. The cord made it easy to convert from my wiring harness.


Fast delivery! Works great with 5 pole flat connector on my Goldwing M/C and 4 pole on my truck


Adapter 4-pole To 5-pole Flat - works as described. Installed on 2013 Chrysler Town & Country. Connected blue wire to left rear light harness. Strongly recommend using a 12v tester for this install, as visual diagnosis can be wrong. Deduct one star because 5-plug has no cover and is susceptible to road grime. My solution is to leave original 4way plug with cover underneath the vehicle and connect 5plug adaptor only when towing boat.


could not find what i needed locally,you came through and fast delivery as well. i recommend your site to anyone. thanks


Great parts and knowledgeable of the pr oducts

Bobby - 06/19/2022


Good product. Easy to install. Video was very helpful.


Simple install on my Jeep JK. Tapped the reverse light lead wire and harnessed all the wires in flex conduit. Tie strapped it all under bumper. Can either use 4 or 5 pin trailer.


4 to 5 pin wiring plug is awesome bought the bracket that it fits in to secure to truck and it works very well was very secure until I backed into trailer hitch with it ..its still square and hold tight just need to rescrew it back on with bigger bolts and it will be good as new. I recommend this to everyone that needs 4 to 5 pin for there trailers its so easy to install takes 5 minutes.

the product is still holding true to the truck and still preforms just as it was the day I installed it
Eldon W - 03/29/2021


Great, fix!!!


Spoke to this person for over 20 minutes with with all the details of my vehicle and I was sent the wrong item a 2nd time


Great service. Thank you


Everything is as described. All of the tutorial videos are Excellent. Unfortunately, There is no install video for my make and mode. However, i have reached out to eTrailer and am waiting on their reply now.

Everything is working well. I did receive a call from etrailer from a guy who told me exactly how to find the wire i needed to splice into. That was a very pleasant surprise. Great Company and Great Customer Service.
Joey J - 08/16/2021


This was exactly what I needed. Our Nissan Pathfinder came with a 4 prong plug already installed, but our new boat trailer has a 5 prong plug. This fit perfectly, works great (already used it this past weekend) and the installation was easy, thanks in part to the instructional video included on the product page. Would definitely recommend to anyone that needs to go from a 4 prong to 5 prong for your trailer.

Which wire did u crimp on to for your Pathfinder? Could u tell me the colour pls. Thanks.
-- comment by: Rich S - 06/08/2014


This is for a 2014 Jeep Cherokee Latitude. It took me a little extra time as my helper was a 5 ton floor jack and it supported the receiver and if only my right foot had fingers it would have helped a lot. Loading the bolts and plates into the frame was a snap, I left the fish wires on the bolts and that helped a lot and I didn't lose a bolt into the frame,you must leave the exhaust hanging to get to the rear bolt closest to the exhaust curve just before the mufflers I didn't and it was a bear to torque it. Also after I cut the opening on the bottom of the bumper and already had torqued the receiver I had to pry the bottom edge over the receiver there was no other way to get the hitch up inside not enough forward space to get it to slide up and in. Other than that it was a snap.
Now for the wiring harness, went well had a bit of a time getting the connectors up to the tail lights even with all 4 screws out and a little bit of play I had to pry the plastic support away from the body to get the connectors through. That was for the 4 flat, for the power for the harness I have a rig runner 4005 from Powerwerx for all my power as I am a volunteer Fire Fighter and have all the goodies that goes with it and every thing runs fine. For the 5 flat all I had to do was find and take out the backup bulb in the tail light and test to find which wire was hot. And then it was over and done put it all back together and drive away with my trailer. Sorry no picture it looks just like the factory/dealer put it on.
Ray H


Had to rewire my 8' utility trailer. Purchased the wiring kit and couldn't be more pleased. Easy to install, clear instructions and fast shipping. THANKS!

Maj M - 10/20/2017


Works as advertised but the 5th (blue) wire provided is too short for my 2006 Honda Pilot. Not a big deal. You can buy 3 feet of 16 gauge wire at Ace Hardware (even in matching blue if you wish) and use butt connector or bullet plug to splice. Regarding which wire to tap into for the reverse lights: On my Honda Pilot, there are access ports to the reverse lights on the inside panel of the rear hatch. I just popped one of those covers out too see what color wire powers those reverse lights. (In my case, it was a green wire with silver spots and a very thin black line.) You can then tap into that wire at top of the hatch in the same manner shown in the video on eTrailer's website (for a Toyota Highlander if I recall correctly).


I have been using adapter #47515 to convert my 4 pole vehicle to my 5 pole trailer plug. The extra wire was necessary to operate the solenoid on my surge brake trailer. It worked ok, but because the wire came into the 5 pole plug at a right angle, the wire seemed vulnerable to bending and then breakage. This product has the extra wire coming straight out the back to alleviate the bending/breakage concern. So far it has met my expectations.


I used this part to convert the four-pole wiring in my 2014 Toyota Sienna Van (previously installed using parts) to a five-pole so I can pull a boat trailer with hydraulic "surge" brakes. Everything worked well, but I had to get an extra length of wire and a butt connector at an auto parts store for my Toyota Sienna. The most time consuming part of the process was finding the reverse light wire in the bundle of wires going to the tail lights. A test light with the ability to pierce a wire (sharp point) is required for this.


very easy it took me about 30 minutes the hardest part was getting the left side tray out of spear tire well witch was about 15 minutes The factory plug was hanging beside wiring harness plug it in hook up ground splice the power wire to backup light for my 5 pin connecter for trailer brakes


The adapter was fine. The video showing how to route the backup light wire to the harness was terrible. Routing a wire under the hatch seal caused a leak that went undetected for 3 months. Had to pull all the seats out several times, remove all the moldy carpet padding, scrub the car and carpet many times, replace the padding, put all the seats back and have the interior professionally detailed. A better method is to route the wire under the headliner down the side. Stay away from the hatch seal.


The hitch assembly kit was installed without any difficulty. I haven't connected to
my trailer yet, but don't anticipate any problems. I was very impressed with the
ordering and shipping notification by your etrailer. I would recommend this
company to anyone else. The prices were very competitive with other companies.
Lew H.


This Adapter is durable and has been working perfectly for over a year. It resolves my non-standard wiring issues between 2 different tow vehicles and 2 different harnesses on trailers.


I ordered a hitch, wiring harnesss, and a 5 pin harness adapter. Received product faster than expected. Installation was easier than expected because of the very accurate videos. I spent more time gathering my tools than actually plugging in the wiring harness. Hitch was installed in 10 mins. Took me longer to get the hitch out of the expertly packed box. I believe the success of etrailer is that they heavily research products and only offer quality, consumer forward items to us, the customers. I had an above average experience. Thank you!


This seems to be a good option for an adapter to get a 5 wire trailer connection.

The single wire for the back up light connection is odd to secure to wire harness so it don't get damaged from dirt. The socket could have a cap to cover so dirt can not get in it when not in use.

Show More Reviews

See what our Experts say about this Tow Ready Trailer Wiring

  • Why Does 5th Pin of 5-Way Adapter Run to Reverse Light on Tow Vehicle
    The fifth circuit of a 5-way is commonly used for the reverse lock out of a trailer with surge brakes. Since that is the most common use of the 5th circuit that's why it's recommended to be installed there. If you have a different need you can attach it to a different circuit.
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  • Installation of a 4 Pole RV to 5 Pole Trailer Wiring Adapter to Tow a Boat
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  • Is there an Adapter to Connect a 5-Way Flat Trailer Connector to a 4-Way Flat Vehicle Connector
    There is an adapter that will work for you, part # 20036. It will require that you run an additional wire to the vehicle and connect it, but the connector is included. You will need to trace the 5th wire on the trailer, usually blue, and find out where it runs. Usually it is for reverse lights or trailer brakes. If it is for reverse lights, you will connect the new wire to the reverse light circuit on your vehicle as shown in the video I have linked below. If it runs to brakes on the...
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  • Which Wire Should I Splice my 4 to 5-Wire Adapter to on a 2004 Ford F-150
    It could be that one of those wires is hot for your brake lights, the other is for the reverse light. With the truck in park, press the brakes. The wire that goes hot then would be your brake lights. When you put the truck in reverse the first wire should still be hot, and you should have a second one come on. The second should be your reverse lights.
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  • Which Wire to Hook Tow Ready Trailer Wiring Adapter To 2007 Honda Odyssey Reverse Light
    On the Tow Ready Adapter 4 Pole to 5 Pole Trailer Wiring Adapter, # 20036, the blue wire gets tapped into the reverse light circuit, if your trailer has a surge brake coupler. If you have electric brakes or electric over hydraulic brakes you would attach the blue wire to the output wire from the brake controller. I am sending a video link of that part number being installed which might help you.
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  • Can Adapter 4 Pole to 5 Pole Trailer Wiring Adapter, # 20036 Be Used on a 1996 Ford Explorer
    Absolutely. The Adapter 4 Pole to 5 Pole Trailer Wiring Adapter, # 20036, is the exact part that I would recommend for your application and the way you have described how to connect it is right on the money. I have included a link to a video that shows a typical installation of this adapter for you to view.
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  • Where to Connect Blue Wire from Adapter # 20036 for Brake Controller on 2007 Saturn Outlook
    If you are going to use the blue wire from this Adapter 4 Pole to 5 Pole Trailer Wiring Adapter, part # 20036, as a brake controller output wire you would run it to the brake output circuit of the brake controller that you have inside your 2007 Saturn Outlook. Most likely this will be the blue wire from your brake controller. I attached an FAQ article on wiring a vehicle for a brake controller from scratch below for you to check out.
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  • How to Find the Backup Light Circuit on a 2011 Nissan Murano for Installation of the 5 Pole Adapter
    You are correct, you will need to access the rear tail light wiring, see video link, and then use a circuit tester, item # 3808 if needed, to determine the correct wire to splice into for the backup light circuit. The wire colors on vehicle wiring changes so often that testing for proper function is the best way to be sure you have the correct circuit identified. You can normally find the reverse light circuit pretty easily by looking for the connection point behind the reverse light in...
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  • 4 to 5-Way Trailer Adapter for a 2012 Kia Soul Towing a Pop-up Trailer with a 5-Way
    This Adapter 4 Pole to 5 Pole Trailer Wiring Adapter # 20036 should work very well for the pop up trailer you have with a 5-way trailer connector. You will just plug that in to the 4-way on your 2012 Kia Soul and plug the other end to the connector on your trailer. The next thing you will need to do is figure out where to run the fifth (blue) wire of the # 20036. Most likely this wire is used for a reverse lockout for surge brakes, or reverse lights. If this is the case you will need to...
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  • 4-way to 5-way Adapter Recommendation to Tow Trailer with Reverse Lock Out Solenoid
    Sounds like your 2009 Lexus LX 570 has a 4-way trailer wiring harness and your trailer uses a 5-way that activates the reverse lock out solenoid of the trailer. The correct adapter you would need is the part # 20036. This will convert your 4-way to a 5-way and would work well for you. Typically the fifth wire is for a reverse lockout or light so it would get run to the reverse light circuit of your vehicle. I attached an install video that shows a typical install of this adapter.
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  • How Does the Adapter 4 Pole to 5 Pole Trailer Wiring Adapter Install on a 2003 Dodge Ram 1500
    The 4-Way to 5-Way adapter does not have vehicle specific instructions. There is only one connection that you need to make and that is to the blue wire included with the adapter. You will use the included quick splice connector and attach the blue wire to a reverse light wire on the truck behind one of the reverse lights. I have included links to a couple of videos that show how the adapter installs. The process will be very similar on your 2003 Dodge Ram 1500.
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  • 4 Wire Flat to 5 Wire Flat Adapter Recommendation for Towing a Trailer with Surge Brakes
    You are totally on the right track. The Adapter 4 Pole to 5 Pole Trailer Wiring Adapter # 20036 that you referenced would be the correct part to use to convert your 4-way to a 5-way to activate the reverse lockout solenoid of your trailer with surge brakes. You would install it exactly like how you described by locating your reverse light circuit and then using the included quick-splice connector to tap the blue wire from the # 20036 into it. Your pictures did make it through also and...
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    Image 1 for Image 2 for
  • Access to Reverse Light Wire on 2007 Honda Pilot for a 4- to 5-Way Adapter for Trailer Surge Coupler
    Normally you could use a fuse tap and tap into the reverse light circuit fuse to get the signal needed. But on a 2007 Honda Pilot the reverse light fuses have other functions on them so that would not work. If you can access the wiring directly behind the reverse light (like if you were going to change out a bulb) then you could get it there instead of having to remove the headliner. If you cannot access the wiring there either then removing the headliner is the only remaining option.
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  • Can a 4-Way Trailer Connector be Plugged Into a 5-Way Vehicle End Trailer Connector
    You will still be able to use the trailer with the 4-Way after installing the 4 to 5-Way adapter, # 20036. First, you could just remove the adapter if you wanted to and then plug in the 4-Way like normal while stowing the adapter in the truck. The extra wire in the adapter what just not be used. Or, you could plug the 4-Way into the 5-Way end of the adapter. The extra pin on the end is for the extra function on the 5-Way, otherwise, the functions are the same for all the other pins. This...
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  • How to Find the Reverse Light Circuit of a 2007 Hyundai Santa Fe for installing 4 to 5-way Adapter
    With your lift gate open you should be able to look in the threshold near the hinge and you will see a black conduit wire loom that has wire in it. If you trace where this wire loom goes you should be able to remove interior components to get to an area of your vehicle that would allow for you to access the wires easily. Once you get to the wires you will want to test them with a circuit tester like our part # 40376 to determine which carries voltage when the reverse lights are on and...
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  • Recommended 4-Way To 5-Way Trailer Wiring Adapter For 2010 BMW X5
    The fifth pin on the 5-Way connector on your trailer will typically be used on surge couplers that have an electric lockout feature. The pin that matches the trailer's fifth pin on the vehicle side will need to be connected to the reverse light circuit on your X5 for this feature to be active. I recommend using the Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter, part # 20036. This adapter includes an additional wire that would attach to the reverse light circuit on the vehicle. I...
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  • Recommended 4-Pole to 5-Pole Trailer Wiring Adapter for 2013 Ford Explorer
    You can use Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter # 20036 to match up your 2013 Ford Explorer with 4-pole harness to your trailer that uses a 5-pole flat connector. Installation is shown in the linked video.
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  • 4-Way to 5-Way Adapter Recommendation for a Reverse Lock Out Solenoid
    What you need to convert the 4-way on your 2002 Ford Super Duty is the part # 20036. This will plug in to your 4-way and will then allow you to run a wire to tap into the reverse light circuit of your vehicle so that your reverse lockout solenoid will activate in reverse.
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  • 4-Way to 5-Way Adapter Recommendation for a 2013 Jeep Wrangler Rubicon
    We have exactly what you would need. All you need is the 4-way to 5-way adapter part # 20036. This will plug into the 4-way on your 2013 Wrangler and will allow you to run the 5th pin to whichever circuit on your tow vehicle that is needed. Typically this is run to reverse lights for either an electric lockout solenoid or for reverse lights. Check out the install video I attached.
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  • 4-Way Flat to 5-Way Flat Adapter for Boat Trailer
    We do have an adapter to go from a 4-Way on a vehicle to a 5-Way on a trailer. You can use # 20036. The extra blue wire will get wired into the reverse light circuit on the vehicle. The 5th wire on a boat trailer 5-Way is usually for an electric reverse lockout. When the vehicle is placed in reverse it sends a signal back to a solenoid on the actuator and does not allow the brakes to engage. You might also check your ground wire to make sure you have a clean ground.
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  • 5-Way Adapter Recommendation for a 2008 Ford Explorer Sport Trac
    Your 2008 Ford Explorer Sport Trac should come with a 4-way already installed. All you would need to convert it to a 5-way would be a # 20036. Next you will need to do is figure out where to run the fifth (blue) wire of the # 20036. Most likely this wire is used for a reverse lockout for surge brakes, or reverse lights. If this is the case you will need to tap into the reverse light circuit of your vehicle using the included quick-splice. I attached an installation video for the # 20036...
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  • 4-Way to 5-Way Adapter Recommendation for a Ford F-150 Towing Trailer with 5-Way
    It sounds like you have a Wesbar 5-way flat on your trailer and are looking for a way to convert the 4-way on your F-150 to work with it. What you will want is the part # 20036. This will plug into the 4-way on your truck and will have a 5th wire that will need to tap into the reverse lights of your vehicle if the 5th circuit on your trailer is for reverse lights or reverse lock out. I attached an install video for this product for you to check out as well.
    view full answer...
  • 4-Way to 5-Way Adapter Recommendation for a 1997 Toyota Sienna Towing Boat Trailer
    The part # 20036 would be the best solution I could recommend for you, in order for the fifth circuit to be active you will need to splice it into the correct circuit of your 1997 Toyota Sienna though. If that fifth circuit isn't needed then you wouldn't need to worry about it. But most likely you need it to run to the reverse light circuit of your vehicle to activate a reverse lock out solenoid. I attached an install video for this for you to check out as well to show you how it would...
    view full answer...
  • 5-Way Adapter Recommendation for 2011 Mercedes Benz Sprinter Van
    What you need is the 4-way to 5-way adapter part # 20036. This will plug into the 4-way of your 2011 Mercedes Sprinter and allow you to run the fifth circuit to your reverse light circuit on the vehicle and will allow your trailer with surge brakes back up freely.
    view full answer...

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