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Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End

Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End

Item # BLU43XR
Our Price: $21.35
Trailer Wiring
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Shipping Weight: 0.17 lbs
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Establish a secure connection between your trailer and your towing vehicle with this 6-pole, round pin, wire-insertion-style socket. Spring-loaded lid keeps dirt and moisture out of the connector when it is not in use. Great Prices for the best trailer wiring from Blue Ox. Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End part number BLU43XR can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (17)
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Blue Ox Trailer Wiring - BLU43XR

  • Trailer Connectors
  • Vehicle End Connector
  • 6 Round
  • Plug Only
  • Blue Ox

Establish a secure connection between your trailer and your towing vehicle with this 6-pole, round pin, wire-insertion-style socket. Spring-loaded lid keeps dirt and moisture out of the connector when it is not in use.


  • Establishes a secure connection between your trailer and towing vehicle
  • 6-pole round pin socket is constructed of tough polymer
  • Spring-loaded lid keeps dust and moisture out of the connector when it is not in use
  • Mounts to your tow vehicle
    • 2-Hole mounting style
  • Durable black plastic construction

BX88413 Blue Ox 6-Way, Round Pin, Trailer Wiring Socket - Vehicle End - Black Plastic

Replaces Blue Ox 294-0902

Video of Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End

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

Video Transcript for Blue Ox Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket Review

Hey everybody, Ryan here at etrailer. Today, we're gonna be checking out the Blue Ox six-way round, vehicle end, connector plug. With that said, this is gonna make a great replacement connector plug. 'Cause a lot of times, what can happen is with these being plastic, they're pretty heavy-duty but, I mean, it is what it is. So, here we have a very similar connector plug. This is the Roadmaster one, that was originally installed.

Nothing wrong with it but they hit something that, it's sitting a little bit low and it cracked. So, it's only a matter of time, once you get a crack in there before, it starts to really come apart, especially the way that our neighbor uses theirs today. They do a lot of flat towing, so it seems a lot of use. So, that's what we're gonna be doing today. We're gonna be replacing it with our Blue Ox one here.

But before we get to that, why don't we just kinda check this out a little bit. So, generally speaking, these are gonna be used on a lot of flat tow applications. It's not to say that they can't be used for other things but this is where you see a lot of them, just like our setup here today on our Jeep. And when it comes to the connector plug, I mean, it's right on par with a lot of the other similar ones. It feels good in your hands, relatively thick plastic.

The lid is actually really tight and spring-loaded, so it will stay closed when you're not using it to keep all the debris and stuff from getting in there. There are metal ones like this available as well. So, if that's something that piques your interest, you can always check those out. There's a little finger catch there, so you got something to grab to open it up and a catch inside on the lid too. That way, when you put your wiring connector in there, it'll catch it and prevent it from getting accidentally pulled out, which I do think is pretty important on a flat tow setup.

I could see that happening without that there, honestly. The terminals inside look nice. I mean, it's a pretty nice piece, actually. Everything's pretty well put together. It feels good in your hand. And if we flip it around to the back, here's all of our terminals where wires are gonna get plugged into. And there's gonna be several. So, you have your ground, your left turn, your right turn, an auxiliary, your taillight signal, and then another auxiliary, I guess you'd call it, right there in the middle. And so, generally speaking, that's all you're really gonna need. All your taillight and all your light signals. And then a lot of times, you use the middle one for a charge line, if that's the setup you have on your vehicle. And then you'll usually have an additional pin here that you can use for whatever it calls for. A lot of times, you won't use it. Sometimes, people that have the InvisiBrake braking system use this for their indicator light on their motorhome. So, there's some instances where you use the last one but not many. But hey, my thought is I'd rather have it and not need it than the other way around. The plug's also gonna come with this rubber dust boot, too, that slides on it, just to help keep stuff protected and sealed up. And they give you a couple of self-tapping screws, too, to mount this up to your base plate. So, I mean, pretty straightforward and not a whole lot to it. And at the end of the day, this is gonna be a good option for those of you looking to just replace your busted six-way connector plug. Or I do know some diode wiring kits don't come with the connector plug, so this is an option too, if you're gonna be installing everything new. Aside from that, that's really about it. Since we are replacing our old one today anyway, I figured why not just kinda show you how to do that. And if you're interested in learning, feel free to hang around, we'll go ahead and do that together now. So, I went ahead and got five out of the six wires hooked up already, 'cause I mean, it's all the same, right Before you hook any of them up though, take your rubber dust cover and put it over your wiring. That way, when we have them done, you can slide that over. So, what you're gonna do, take the bare end of your wire here and just strip the insulation back. About like that should work. Twist those wires up. And then you're just gonna put the wire in the appropriate terminal. And they are labeled. We'll go over those in a second. The white wire's the ground, so that'll be the terminal labeled, GD. You just simply back the set screw out quite a bit. Try not to take it all the way out 'cause it's kind of a pain to get back in. We slide that wire down in there and then simply just tighten this down. So, really not a whole lot to it here. The terminals are labeled, like I said. They might be kinda tricky to see on camera here, but you have RT for right turn, so your green wire goes there. LT for left turn, so yellow wire there. Obviously, the GD is ground, that we just did. TM, which is taillights, so the brown wire will go to it. And like I talked about, the center one is a charge line wire, if you have that. And then this one, I put a length of blue wire in it. It's not actually getting connected to anything. It's just a bare wire, maybe a foot or two long. That way, if we do end up eventually, in the future, needing to hook something up to it, we don't have to take this all back apart, because we are gonna put some sealer and stuff in here and we'll be able to just connect to them with a wire. So, kinda just what we like to do in case, in the future, if we wanna add something. But with all these hooked up, now we can grab some sealer and get our cap on and everything else. So, I'm gonna put some sealer in here. And this will just help protect the terminals from corrosion. You can grab some of this at etrailer. A dielectric grease can work too. 'Cause honestly, something's better than nothing. 'Cause a lot of times, this is kind of the number one thing that you run into issues with is corrosion back here. So, this will keep the terminals in good shape. I got them pretty good, like that. Slide our recover over it. And then I'll just kinda backfill this whole thing as well here. That way, no moisture or anything goes inside. And with that done, I'll grab some tape, seal this up and then we'll mount it. So, I've used my electrical tape there and taped it on up. And I'm gonna take my bolts or the self-tapers they give you to secure it to our base plate. With these, since you're putting it in steel, a lot of times, I'll just take a little bit of anti-seize and put it on the threads. That way, they don't rust super bad and make it really difficult to undo it in the future if we ever have to. And let's get these running in. Be careful not to tighten theses up too tight, 'cause with this being plastic, obviously, if you're running it down super hard, it will probably be on the bit side. Just get it snug and that's really all there to it. And that will finish up our look at of the Blue Ox six-way round trailer connector plug..

Customer Satisfaction Score:

Customer Reviews

Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End - BLU43XR

Average Customer Rating:  4.9 out of 5 stars   (17 Customer Reviews)

Establish a secure connection between your trailer and your towing vehicle with this 6-pole, round pin, wire-insertion-style socket. Spring-loaded lid keeps dirt and moisture out of the connector when it is not in use.


Good product. Way too expensive. ET could have had free shipping for such a tiny item. Blue Ox and their distribution system do not make setting up a Dingy tow vehicle economical. One would think Blue Ox could have a product support division to supply replacement parts and components more cheaply than going through distributors. C'mon BX!


Worked as described. Used with Blue Ox tow bar.


Etrailer always has what I need when I need it


Thanks for the quick shipment and deliv ery.


Great customer service.


Exactly what we needed. Very easy to order, great updates and incredibly fast delivery. Thank You.


Great company to order your RV needs.










See what our Experts say about this Blue Ox Trailer Wiring

  • What Size Mounting Screws Are Required To Install 6-Pole Connector On Blue Ox BX1721 Base Plate?
    To attach the Blue Ox 6-Pole Connector # BX294-0902 to the now discontinued Blue Ox BX1721 Base Plate on your 2021 Chevy Colorado you will need to use #12-14 x 1" self drilling screws which you can pick up from a local home improvement store. I included a video of the # BX294-0902 being installed for you to take a look at.
    view full answer...
  • Replacement Blue Ox 6-Pole Wiring Socket For Flat Towing Your Vehicle
    You can find the BX88413 with part # BLU43XR. If you need any other components to finish your flat towing setup or replacing any damaged parts you have then just let me know the year/make/model of your vehicle and I can offer some recommendations for you.
    view full answer...
  • How Do You Attach The Wiring Socket To The Front Of The Blue Ox Base Plate On a 2007 Dodge Nitro?
    The Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket # BLU43XR will attach to the Blue Ox Base Plate # BX1976 with the 2 #12-14 x 1” Self Drilling Screws that come included with the base plate. The holes are not threaded for a bolt, but rather the self drilling screws are used to fasten the wiring socket.
    view full answer...
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  • 2012 Honda CR-V Flat Tow Fuse Bypass Switch And Wiring Between RV And Vehicle
    For your 2012 Honda CR-V, I double checked everything in your owners manual and have confirmed the Blue Ox Fuse ByPass Switch for Towed Vehicles - 2 ATM Mini-Fuse, # BX88273 is the switch you want for the two 7.5 amp fuses. They are in fact mini fuses. For your connection from your RV to your CR-V, I recommend cutting off the 4 way of your # HM56304 at the front of your CR-V and using the Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End, # BLU43XR. I've attached a video...
    view full answer...
  • What is the Mounting Hole Spacing for Pollak Vehicle Side 6-Pole Trailer Connector
    I went out to the warehouse and pulled Pollak 6-pole vehicle side connector # PK11608 to measure the mounting hole spacing for you. The holes are 2-3/4 inches apart on center. The vehicle and trailer side connectors are different. The trailer side that would plug in is # PK11604. But in a flat towing set up (towing a vehicle behind a motor home) the vehicle side connector would be at the front of the towed vehicle. The replacement Blue Ox model is # BLU43XR.
    view full answer...
    Image 1 for
  • Compatibility Of Blue Ox Wiring And Diodes With 2020 Ford Edge
    The Blue Ox Tow Bar Wiring Kit - 4 Diodes # BX8848 will absolutely work with your 2020 Ford Edge. The Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End # BLU43XR is my recommendation to go along with this kit to give you the connection on the front of your vehicle. You will also likely want the Roadmaster Automatic Battery Disconnect with Switch for Towed Vehicle w/ Supplemental Braking System # RM-766 to conveniently disconnect your battery as required for flat towing.
    view full answer...
  • Parts Needed to Flat Tow a 2017 Grand Cherokee Trailhawk
    The first thing you need to flat tow your 2017 Jeep Grand Cherokee Trailhawk is the Roadmaster Direct-Connect kit part # RM-521440-5 which is the easiest to use and best priced option for your vehicle. I attached an install video for this for you to check out as well. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your vehicle. The most popular compatible tow bar is the Falcon All Terain, # RM-522....
    view full answer...
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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Joshua S
Video by:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Ryan G
Installed by:
Ryan G

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