Blue Ox Tow Bar Wiring Kit - 4 Diodes

Blue Ox Tow Bar Wiring Kit - 4 Diodes

Item # BX8848

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Tow Bar Wiring

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Blue Ox Tow Bar Wiring Kit - 4 Diodes Diode Kit BX8848
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Connect your towed vehicle's lighting system to your RV's to get the brake lights required for towing. Lowest Prices for the best tow bar wiring from Blue Ox. Blue Ox Tow Bar Wiring Kit - 4 Diodes part number BX8848 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (20)
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  • Videos (7)
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Blue Ox Tow Bar Wiring - BX8848

  • Diode Kit
  • Splices into Vehicle Wiring
  • Blue Ox
  • Universal
  • Tail Light Mount

Connect your towed vehicle's lighting system to your RV's to get the brake lights required for towing.


Features:

  • Connects RV's tail, brake and turn signal lights to towed vehicle's light system
  • Includes 26' long, 4-wire harness; 4 diodes; ground wire; and detailed instructions
    • Diodes prevent electrical feedback and the damage it can cause to your towed car's electrical components
  • Made in the USA
  • 1-Year warranty


BX8848 Blue Ox Tow Bar Wiring Kit - 4 Diodes



BX8848 Installation InstructionsInstallation Details BX8848 Installation instructions



Video of Blue Ox Tow Bar Wiring Kit - 4 Diodes


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




Video Transcript for Blue Ox Tow Bar Wiring Kit Installation - 2018 Ford F-150

Speaker 1: Today on our 2018 Ford F-150, we're going to be taking a look at, and I'm going to show you how to install, the Blue Ox Tow Bar Wiring Kit, part number BX8848.What the diode kit's going to do for you, is while your Ford is being flat-towed behind your RV traveling down the road, it's going to allow you to transfer all those signals from your RV into the Ford. When it's finished, you turn on your brake lights, your running lights, your turn signals, all those are going to transfer through to the vehicle while it's being flat-towed.Now the purpose of the diodes, is to protect the factory wiring on the Ford from any back feed from the RV. And vice versa it's going to protect the RV wiring from any back feed from the Ford's wiring.As far as the installation goes, it is a pretty simple installation. You will need a light tester to test the wiring to figure out which wires are your brake wire, and your running lights, and turn signals. Other than that, all you're doing is transferring wires, running a wire from the back to the front.First thing we need to do to start our installation, is we're going to go ahead and get everything out of the package. You're going to get 12 foot of green and brown wire, and you're going to get your 4-pole wire that's going to route to the front of the vehicle.

You're going to get your four diodes, two for each taillight. Then you're going to get your female spade connectors, they're going to hook onto your diodes from your wiring. You're also going to get a butt connector, ring terminal, self-tapping screw. And then an extra white wire for your ground wire.Some of the things that you're going to need, crimpers. You're going to need, and you can just use a socket this is to get a socket wrench if you don't have a battery operated one or electric one, 5/16ths socket, and that's to remove our taillights.

You're going to need wire strippers, and you're going to need a light tester.To remove our taillight, we're going to start on our passenger side. We're going to remove this bolt, and this bolt. And we're just going to pry our light off. You want to make sure that these alignment tabs that are here, we don't break those off. Once we get that disconnected, we'll go ahead and unplug our taillight and set our light aside.Now we have a coating here.

We need to remove that, and actually if you look back here there's a little clip that's holding our wiring on. If we un-clip it, it might make it a little bit easier to work with, give us a little extra room here. Pull our wires out, pull this off a little bit more.And with our tester, we actually have our right blinker turned on right now, it's a little bit easier if you have somebody actually sit in there so you can run through all the functions at once. Now our brake signal and our right turn signal should be on the same circuit. We're just going to be using two wires.

So what we're going to do, is we have the other end of our light source, or our tester, hooked up to a ground and we're just going to push it in like this. So it's going to be our second prong, which is going to be this green wire with the orange stripe. And you're just going to do that same process for your running lights.Through testing, we determine that, as I mentioned, the green wire with the orange stripe is going to be our turn signal and brake signal. And then our blue wire with the white stripe, is going to be our running lights signal.So actually I stripped the back a little bit farther, this is a little close to your other plug. You can do it there, but I like to give myself room. So I actually went down here, I'm going to cut my wires here. It gives me plenty of room for my diodes.Go ahead and start with our, actually we can just cut them both. Strip back the ends, I'm going to add one of my spade connectors onto each one like that. We're going to do the same thing with our green wire. Take our diode, you're going to see it's going to have two ins and an out, out is going to the taillight, in is coming from the wiring. Like that, and we'll take our other blue one and plug it into one side. Same thing with this one, just like that.Then you're going to take your green and your brown wire, and if you follow it down I pushed all of it down through that hole where my factory wiring is going because the other end of this is going to be going over to the drivers side. We're going to go ahead and make these connections first though.We're going to add our spade connector once you strip back your wires. And if you remember, our blue wire with the white stripe was our running lights, which is going to be our brown. We're going to plug that in, in with our blue wire. And then our green wire's going to be our turn signal and brake lights, and we're going to plug that in with the diode with the green wire and orange stripe.Then one thing I forgot to mention, is electrical tape. I went ahead and put my wire loom back over, and I'm actually going to take these and I'm going to see if I can't tape them on here. And I'm not putting a lot of pressure on the tape, I just want to hold them in place so they're not bouncing around. Push our holder back in place. Now we can put our taillight back in.I went ahead and routed my brown and my green wire over from my passengers side. And I fed my 4-pole wiring up through the hole here on my drivers side. Now how I ran my green and my brown wire, I went up above my spare tire bracket, just ran it across the bottom of the bed basically. You just want to make sure you're staying away from anything hot or moving. I did zip-tie it to where this wire goes down to the bottom of the bed, I did zip-tie it there so it stays tight across the back. Really, it doesn't matter how you run it that's just how I did it.So now what we're going to do with our brown wire, and you remember our brown wire on our passenger side was running to our running light signal. When our vehicle's being flat-towed and we turn our running lights on in our RV, if we don't have this line or this brown wire coming from our passenger side jumping across to our drivers side, the passenger side light is the only one that's going to come on. So we need to tie this in with our brown wire on our 4-pole wiring that's going up to our 6-pole plug. We'll put them together like that. And then these will go onto our running light signal on our drivers side.Let's go ahead and strip this wire back here, this is our 4-pole wire. And then as far as our brown wire here, we're going to cut it down a little bit, twist these two together, go ahead and put on one of your spade connectors.That green wire, I'm not going to be connecting that to a diode on this side. I'm just going to connect my green wire from my 4-pole and my green wire coming from my passenger side for the blinker, together. Go ahead and cut this down, and then these we're just going to strip back a little bit, we're going to add a butt connector on them.Now your kit is going to come with a butt connector. However, I'm going to replace it with a Heat Shrink butt connector because our wiring is going to live outside of the vehicle. Go ahead and add that on to the end of our green wire, just connect our other end like that. And we'll take our heat source, and shrink the butt connector.On our drivers side we determined that this white or gray wire with that orange stripe is going to be our brake light and turn signal, and then our blue wire with the white stripe again is going to be our running lights. So then we're just going to splice them into our wiring, the same way we did the other side.Go ahead and split them. Blue wire, blue wire. Double brown. Brake light and turn signal, on your gray or on your white. Yellow and the other end of our orange and white. And our white wire's going to be our ground, strip it back, and your kit's going to come with a ring terminal, crimp that on.Now with the self-tapping screw that comes in the kit, I'm actually just going to ground my ground wire right here.Now I need to run the other end of my wiring up to the front of the vehicle. Let me get that done real quick, and I'll show you how I did it.So you can see my wire here. I went over top my frame rail, through the inside, over top of this crossbeam here, just followed my existing wiring, my factory wiring, all the way up to right here where it goes back over top my frame, and you can see it there. Just followed it all the way up to the front of the vehicle. I just ran it right along my frame rail, and you can see I ran it right up above my shock power, zip-tied it up there so it stays above it, came out to the front frame rail, just dropped it down the inside here. Now we need to figure out where we're going to mount our 6-pole plug.The only place we can really do it without actually cutting into the bumper itself, is this hard plastic that's right underneath our bumper. I did have to bend the bracket a little bit so it would sit straight. If you do it here, just remember this bumper actually stops about here so to get the nut and bolt on it, it's a short one that comes with your baseplate kit, but to get the nut up inside of there you're going to have to pull it down a little. So you can see I've got two marks where I just took a little marker marked the two holes, and then I'll put it in about like that.Now what we need to do, is we need to get our wiring through here. I like to keep it as hidden as possible. So if you see, I put on my 6-pole plug, I have my boot on, I'm actually going to drill a hole straight up right there. That way when I pull my wire through, most of it's going to be behind here.So now I'm going to give myself a little extra. I'm going to go ahead and cut this off right here, pull my plug back off, and then we'll make our connections on our plug. On the back of our plug we're going to have a rubber boot, we're going to go ahead and pull that off, we're going to slide that on skinny end first.Now if you look on the back of the plug it's going to have GE for ground, GM's going to be running lights, LT for left turn, RT for right turn. Take a Phillips or a flat head screwdriver and make sure you don't pull these all the way out because they can get lost they're small. And we'll start going around, just like that. Keep in mind that this plug does not come with this wiring kit. This kit you have to purchase this plug separate, but it can be found on our website.We're going to add some dielectric grease, which can also be found on our website. And I'm just going to kind of cover my connections here. This will help protect them, and help keep the moisture off. Slide your boot down on top, take some electrical tape an tape over the end of my boot like that. And I'm actually going to go right down the end onto my wiring. Then we can reinstall our plug.Now we're going to test out our wiring using an alternate power source. This is going to simulate being hooked up to the RV. Taillights, left turn, brake lights, right turn.That'll do it for the look at and installation on the Blue Ox Tow Bar Wiring Kit, part number BX8848, on our 2018 Ford F-150.


Customer Reviews

Blue Ox Tow Bar Wiring Kit - 4 Diodes - BX8848

Average Customer Rating:  4.9 out of 5 stars   (20 Customer Reviews)

Connect your towed vehicle's lighting system to your RV's to get the brake lights required for towing.

- BX8848
by:

As always you sent me another great product for my RV it's always so easy with the instructions that are provided with your products and the quality is always top notch I really needed this to wire my TJ Sahara jeep for a tow dingy to drag around behind our motor home I was worried that wiring the brake lights, etc. the same as a trailer would have a detrimental effect on the jeeps wiring its nice to know that just looking it up on your website gave me all the info I needed and a choice of products Thank you 378020


Comments

its still a great product even after a year and I am sure it will last many more years

Jim - 05/08/2018

38318

- BX8848
by:

Part arrived on time, installation by a professional, paper work all done in a timely manner. 693822



- BX8848
by:

Got everything I ordered. My order was delivered within 24 hours after I place it. Keep up the good work. etrailer is the best 693842



- BX8848
by:

Very happy with the service we received. Less than 24 hours after we ordered this kit it was at my front door. Thanks. 672713



- BX8848
by:

Great customer service. Product is 1st class . My experience was awesome. 669953



- BX8848
by:

It was an easy install on our Jeep Wrangler. Works great. 629239



- BX8848
by:

Just what I need to do a proper install ation. 619901



- BX8848
by:

everything was just as listed and came as promised ...install was easy.. 616474



- BX8848
by:

The wiring harness came with enough wire and everything I needed to get it ready for towing. 605480



- BX8848
by:

Easy to install, make sure you have cable ties the kit dose not come with any 583560



- BX8848
by:

Easy install, works great! Thanks 566641



- BX8848
by:

Ordered on Saturday and received on the following Tuesday. Packaging and labeling was in great shape. Just waiting for my vehicle to arrive so I can install the equipment. I will order from etrailer again. 447971



- BX8848
by:

Quality products at good prices delivered on time. 440722



- BX8848
by:

Easy install 434020



- BX8848
by:

I'm completely satisfied. It works the way it was advertised. 281491



- BX8848
by:

Fast shipping and great service. 215853



- BX8848
by:

Great web site, Great service 166707



- BX8848
by:

Product exactly as described; great price and quick shipping. Enjoy doing business with etrailer.com 165882



- BX8848
by:

It hasen't been installed yet, but I haved used this item in the past and it worked well. 159190



- BX8848
by:

All parts and pieces there. Installed fine. 11852


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Ask the Experts about this Blue Ox Tow Bar Wiring

Do you have a question about this Tow Bar Wiring?


  • Diode Tow Bar Wiring Kit Installation Video for a 2014 Jeep Cherokee
  • Yes, the Roadmaster Tow Bar Wiring Harness part # RM-154 would install in the exact same way as the Blue Ox Wiring Kit part # BX8848 that you have, so the video you referenced that I attached to the right would work as a guide.
    view full answer...

  • Recommended Wiring Kit and Other Parts to Flat Tow a 2005 Jeep Wrangler
  • Instead of using the # BX8848 wiring kit and adding a connector and umbilical cord between the Wrangler and RV I would use the # RM-15267 kit which includes everything. It will make the installation much easier and have a cleaner look once installed. I've attached an installation video on a 2007 Wrangler Unlimited which will be very similar process to yours. In reference to your other choices, the Blue Ox Alpha Tow Bar # BX7365 is an excellent choice and includes the safety cables....
    view full answer...

  • Comparing Roadmaster RM-154 and Blue Ox BX8848 Flat Towing Diode Kits
  • The Roadmaster hardwired diode kit # RM-154 for flat towing a car will not differ much from a similar kit from another maker, such as Blue Ox kit # BX8848. But since the Roadmaster kit includes a protective wire loom and has been highly-rated by many more users, I would opt for the Roadmaster kit # RM-154. I linked a series of helpful articles concerning tow bar wiring options as well as installation videos for both kits.
    view full answer...

  • Can the LED Bulb and Socket Kit # BX88267 be Installed on a 2009 Subaru Forester for Flat Towing
  • We do have an LED wiring kit just like the Kit # BX8869 that you referenced. It is found as part # BX88267 on our site. You can use the LED kit if your 2009 Subaru Forester does not have LED tail lights and if each tail light housing has enough room for an extra bulb and socket. It could be that there is no room for an extra bulb and socket which would be why the Roadmaster Kit # RM-152-LED isn't confirmed to fit. If you do have LED tail lights (or you don't have enough room for...
    view full answer...

  • Recommended Components For Flat-Towing 2013 Hyundai Elantra With Motorhome
  • To flat-tow your Hyundai Elantra behind your motorhome you will need 5 items. You will need base plates, a tow bar, safety cables, lighting for the Elantra, and most states now require a supplemental brake system. If your Elantra is not a GT the Blue Ox base plates, part # BX2331 would work well. The tow bar that would also work well is the Blue Ox Alpha Tow Bar, part # BX7365. This tow bar is designed with a motor home mount and will work well with the BX2331 base plates. This tow bar...
    view full answer...

  • Roadmaster BrakeMaster System RM-9160 in 2018 Jeep JL Wrangler Unlimited with Diode Kit
  • The Blue Ox 4-diode tow bar wiring kit # BX8848 that you have installed in your JL Unlimited will not cause issues with the brake lights on the Jeep since it will be in Tow Mode when you are flat towing it. This will allow the motorhome to control the lights. In your 2018 Jeep JL Wrangler Unlimited the Roadmaster BrakeMaster System # RM-9160 will install using a Stop Light Switch kit # RM-751000 which provides a separate "brakes on" signal path back to your motorhome. To use this braking...
    view full answer...

  • Will the Blue Ox Diode Kit 8848 Fit a 2013 Ford C-Max
  • Yes, for your 2013 Ford C-Max the Blue Ox Tow Bar lighting kit part # BX8848 has been confirmed as a fit. I attached a link to the install instructions plus a link to a help article page on installing kits like this.
    view full answer...

  • Hazards Turn on 2012 Ford Explorer When Headlights on RV are Turned on
  • It sounds like your ground could be the problem in this situation. The Ground wire on the Blue Ox Tow Bar Wiring Kit # BX8848 needs to be run to a main Ground or installed directly to a clean, bare metal surface on the chassis of your 2012 Ford Explorer. If you ran the white Ground wire from your 4-Way to the tail lights then you could possibly be getting some residual signal which could be causing your hazard lights to flash. Go ahead and disconnect the Ground wire and Ground it to...
    view full answer...

  • Parts Needed to Flat Tow 2013 GMC Acadia AWD
  • Yes, the setup you mentioned is complete for flat towing your 2013 GMC Acadia. The base plate kit part # BX1708 is a confirmed fit and will work great with the Blue Ox Avail # BX7420 tow bar that you mentioned. This is the nicest tow bar around so you'll really like it and it comes with safety cables. For wiring the Blue Ox Tow Bar Wiring Kit # BX8848 and the umbilical adapter # BX88206 would have you covered. Instead of having to manually pull the fuse the part # BX88274 would...
    view full answer...

  • Parts Needed to Flat Tow a 2015 Smart Fortwo Pure
  • All of the parts you mentioned are compatible for your 2015 Smart fortwo. Blue Ox Alpha Tow Bar - Motor Home Mount - 6,500 lbs - BX7365 Blue Ox Base Plate Kit - Removable Arms - BX1987 Blue Ox Tow Bar Wiring Kit - 4 Diodes - BX8848 I am not a huge fan of the AutoStop braking systems so I would recommend you go with a Blue OX Patriot part # BRK2012 instead. The easiest system to set up and use is the Blue Ox Patriot # BRK2019, that applies the vehicle brakes in proportion to how...
    view full answer...

  • Blue Ox Diode Tail Light Wiring Kit Compatibility with 2008 Ford Taurus X
  • The Blue Ox Tow Bar Wiring Kit - 4 Diodes # BX8848 will work well for your 2008 Ford Taurus X. When using the BrakeBuddy # HM39530 you won't need to use a relay or anything to change the functions. It is a simple installation with no additional fuses, bypass systems, or relays needed. You will not need to remove fuses to tow. It is recommended to run the engine for at least 5 minutes prior to a trip and every 4-6 hours to circulate the fluids in your Taurus to reduce wear when towing....
    view full answer...

  • Troubleshooting Diode Trailer Wiring Installed on Vehicle Where Turn Signal Flashes Both Sides
  • It sounds like you have the turn signal and running light circuits ran backwards so that when either blinker circuit is activated you end up with both lights flashing. This is because the running lights run to both sides of the vehicle and the stop/turn circuits go to each side specifically.
    view full answer...

  • Recommended Wiring From Motorhome to RV 4-Pin Trailer Connector
  • For a wiring system for your 2018 Nissan Rogue to do what you desire will required the Blue Ox Tow Bar Wiring Kit - 4 Diodes # BX8848 and a 4-way connector on the front of your vehicle. Your 2018 Nissan Rogue is not to be flat towed, but rather towed on a trailer if it is AWD or on a tow dolly if it is FWD. I recommend the Roadmaster Tow Dolly # RM-2050-1 for that and also brake controller # 90195 for the brakes. You will need to hardwire your motorhome wiring for that brake controller...
    view full answer...

  • Blue Ox Parts List To Flat Tow a 2016 Jeep Grand Cherokee
  • I have attached for you below a list of parts you will need to flat-tow a 2016 Jeep Grand Cherokee using a Blue Ox tow bar such as the Blue Ox Avail Tow part # BX7420. Blue Ox Base Plate Kit part # BX1128 Blue Ox Tow Bar Wiring Kit part # BX8848 Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord part # BX88206 Blue Ox Patriot II Radio Frequency, Portable Braking System part # BRK2016
    view full answer...

  • Why is RoadMaster Tail Light Wiring Kit # RM-155 Not Recommended For a 2011 Chevrolet Malibu LT
  • Neither one of our manufacturers, RoadMaster or Blue Ox, recommend to use the bulb and socket type of lighting when flat towing a 2011 Chevrolet Mailbu LT. Usually it is because of limited space in the taillight housing that does not allow the bulb and socket to fit properly. We go by what the manufacturers recommend, since they have already done a test fit on the vehicle. The RoadMaster Diode Wiring Kit, part # RM-154, or the Blue Ox Wiring Kit, part # BX8848 is recommended for your...
    view full answer...


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Info for this part was:

Expert Research:
Michael L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Rachael H
Expert Research:
Sarah H
Written by:
Lindsey S
Installed by:
Jeff D
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Kathleen M
Test Fit:
Randy B
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Shane H
Video by:
Chris R
Video by:
Zach D
Video by:
Jonathan Y
Video by:
Jacob H
Updated by:
Sarah W

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