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  1. Tow Bar Base Plate
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Blue Ox Base Plate Kit - Fixed Arms
etrailer Installation
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Blue Ox

Blue Ox Base Plate Kit - Fixed Arms

Part Number: BX2131
$391.24
Retail:$609.00
You Save: $217.76
Tow Bar Base Plate

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Custom designed to fit your vehicle so it can be safely towed behind your RV, this base plate has low-profile reinforcements, leaving only the attachment tabs visible when you're not flat towing. Base plate bolts directly to your chassis. Great Prices for the best tow bar base plate from Blue Ox. Blue Ox Base Plate Kit - Fixed Arms part number BX2131 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (412)
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Blue Ox Tow Bar Base Plate - BX2131

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Ready for Flat Towing: Creates solid connection points so you can safely tow your vehicle behind your RV.
  • Blends In When Not Towing: Hidden reinforcements leave only the attachment tabs visible for a clean look.
  • Evenly Distributes Towing Force: Sturdy design spreads stress across the chassis for smoother, safer towing.
  • Built to Last: Durable, powder-coated steel resists rust and corrosion through years of travel.
  • Easy Connection Options: Works with Blue Ox tow bars and adapts for Roadmaster or Demco systems.
Made in USA

Features to know about

Built for Reliable Flat Towing: Fixed-Arm Base Plate That Bolts to the Chassis

This base plate kit gives you a solid, no-nonsense connection between your vehicle and your motorhome. The fixed draw bars bolt directly to the chassis, spreading towing forces evenly to help prevent stress on the suspension during long hauls. The sturdy steel construction is powder coated to resist rust and corrosion, so it’s ready for years of towing miles.

Keeps a Clean Look Up Front: Low-Profile Setup with Visible Tabs

You don’t have to give up a tidy front end when you install this setup. The low-profile reinforcements stay mostly hidden, leaving only the attachment tabs visible when you’re not towing. It’s a simple design that keeps hardware out of sight and out of the way while still giving you easy access points for your tow bar.

Straightforward DIY Install: Bolt-On Design, No Welding Needed

If you like doing your own work, this kit won’t slow you down. It bolts directly to the chassis using the included mounting hardware—no welding required. Everything lines up for a secure fit, making it a good project for a careful weekend installer who wants a strong, factory-style connection without fabrication.

Ready for Your Tow Bar Setup: Compatible and Adaptable Options

The lugs on this base plate pair directly with Blue Ox tow bars for a secure hookup. If you’re running Roadmaster or Demco gear, adapters are available separately (RM-031 or RM-031-5 for Roadmaster, DM9523041 for Demco) so you can reuse your existing equipment and keep your setup consistent across vehicles.

Sized Right for Easy Planning: Clear Specs for Fitment and Alignment

With the brackets spaced 24" apart and a bracket height of 17", it’s easy to line up your tow bar and wiring connections. The setup stays level and balanced once installed, giving you confidence that your flat-towing system will track straight behind your motorhome every trip.

Specs

Dimensions

  • Distance between brackets: 24"
  • Bracket height: 17"

Diagram showing the five main components of flat towing setup — tow bar, base plate, safety cables, tow bar wiring, and supplemental braking system — illustrating how a vehicle connects securely behind an RV.

  • Tow bar: links your towed car to your motorhome. It attaches to the custom-fit base plates that install on the frame of your towed car.
  • Base plate: installs on the frame of your towed car and provides attachment points for the tow bar.
  • Safety cables: ensure that your towed car does not separate from your motorhome in the event that your tow bar becomes detached.
  • Tow bar wiring: allows your towed vehicle's signal lights to sync up with your motorhome's tail lights, which is required by law in most states.
  • Supplemental braking system: brakes your towed car when the brakes in your motorhome are activated, preventing wear on the motorhome and decreasing braking distance for your entire setup.

Warranty

  • Warranty length: 3-Year warranty

BX2131 Blue Ox Baseplate - Standard Tabs

Installation Details BX2131 Installation instructions

This Product Fits The Following Vehicles




Ratings & Reviews

4.8

412 reviews
Review sort icon
Custom designed to fit your vehicle so it can be safely towed behind your RV, this base plate has low-profile reinforcements, leaving only the attachment tabs visible when you're not flat towing. Base plate bolts directly to your chassis.

by:

everything bolted up easy, i simply drilled hole’s into were needed and supplied my own bolts straight through for easy installation.



by:

Etrailer.com shipped the item quickly. The baseplate arrived on time. Installation was easy and all the parts fit perfectly. We towed our Cherokee the very next day to Arizona from California. Everything worked perfect.



by:

I thought price was a little high, but they worked very well. Fit perfectly and looked good. Came with clear installation instructions. The nuts on steel wires made it possible to slide them deep inside the frame where the support plates bolted on without any trouble.



by:

The plate was fine but those who wish to install it themselves should know that on a Transit van like mine it takes a lot of work and time along with some very extensive modifications to the lower bumper struts. The use of a grinder with cutting wheel is a must. This job took me two days. Did not take any pictures during. But once installed it works great.



by:

My blue ox base plate kit came right on schedule. I met my mechanic at the shop and with a hydraulic lift and air tools we had it installed and secured in about 30 minutes. I could have done it alone at home in about 1.5 hrs. It fits perfect and looks like it was part of original car frame.
Thx



by:

The Blue Ox BasePlate has worked out very well. We've traveled over 3,000 miles on 4 separate trips....with multiple hookups and detachments. Great system. The only constructive comment is the electric hookup for lights/turn signals was a little wonky but my mechanic worked it out with the manufacturer.



by:

Installed this on a 2014 Chevy Express 3500 15 passenger van. Install was time consuming, as holes needed to be drilled (went through 2 drill bits) and the nuts must be fished through the frame, then "caught" by the bolt. I think there were 12 of them! Instructions were clear, though, and I've safely towed without incident over 7,000 miles in the past year. Definitely rock solid! Paired up with a Blue Ox Aventa 7,500 lb tow bar.



by:

Installing it today. I was impressed with the quality of components and construction. I test fitted and it slid right in. Now to drill the holes. Another thing was the quick delivery and packing. I definitely order from etrailer again.



by:

I had a simple ball hitch setup for my 1999 Jeep Wrangler for towing behind our RV. Our first trip out with it, the bolts that attached the bar connectors to the front of the Jeep came loose. I was fortunate that they didn't come out completely and cause a major accident. I was able to tighten them again, and we had no additional issues on our trip. Of course, this made me extremely nervous with my 'budget' route to tow the Jeep so I began looking for a better, more reliable solution.

Blue Ox was the name that kept coming up so I purchased the BX1120. The build quality is outstanding, it's extremely solid and very durable. Installation time was about an hour and a half once I had the right tools, couldn't find my 1/2 inch socket set! I'm using the Blue Ox Alpha tow bar with this setup.
I will say that having a second set of hands to install is valuable, my son had to come help me get the drivers side bolts in while I held the steering housing in place.

All in all, I'm very pleased with the product. It went in easy and should save my nerves on our next road trip!

1999 Jeep Wrangler Sport
After market front bumper (Plenty of clearance with this specific mount)



by:

The predrilled holes didn't quite match up which required drilling out a little. Other than that it went quite well. It took this eighty year old man about two hours to get the whole thing mounted.



by:

Easy enough install on my 86 samurai. Had to do some persuading but nothing major. I did need to notch the bottom of the bumper in two spots to clear the mounting brackets. Seems awfully expensive when you see what you get.



by:

Quality built product! And outstanding customer service by Ashley!!



by:

First of all, the staff at etrailer has always been there with answers with anything. Fitment, installation, usage etc. Second. The install was easy with the enclosed instructions. I did it by myself with only getting help to raise and lower the bumper. After several thousand miles of towing, still tight and still looks great



by:

Perfect fit, well built of high quality materials. In my mind you just can't get much better than Blue Ox. The only issue is that the BX1120 doesn't have removable twist lock tabs. The fixed draw bar mounting tabs are at just the right height and position to play havoc with your shins when the draw bar is not installed. I solved that problem with a shin guard I made of 2 inch schedule 40 PVC. (see photo) Fits perfectly, guards the breakaway switch and lighting connector when not in use, and solves the shin interference problem.



by:

1 year later, it’s been used for over 1500 miles and held up great. I did the install and had a weld shop tax the bolts do they wouldn’t back out.



by:

I'm not giving the products the stars as much as the woman who helped me select them and turned me onto the "road-master" product line. Road-master had a "towed-car" hitch for my 2002 Mazda Protege. It was a blessing to have met her acquaintance.



by:

Very simple to install, just need to drill a few holes in the frame. Comes with everything you need except a couple basic washers (mine came with 3 lock washers and 2 standard flats for 4 bolts)…

Would be nice to have the torque specs also in the instructions but the busted bolt is on me!



by:

Base plate is well built and fit well. As I would expect from Blue Ox products. My only complaint and the reason for 4 stars would be the horrible instruction. Pictures are absolutely horrible. Not a big deal for the mechanically inclined, but not everyone fits that category.



by:

Outstanding communication. Outstanding customer service. Outstanding towbars and baseplates. Will be back.



by:

Easily installed but proper alignment needs to be maintained before drilling the additional hole required for through bolts.



by:

Not a bad install the nuts on the end of the wires was a little strange and odd to use and bend….. worked out great haven’t towed it yet ….bolted in and ready. There’s not really any place on thes 06 Wrangler to put those safety cables to the frame. Alex T in sales was great.



by:

The kit is well built and comes with all the necessary hardware to install. Installation was a breeze and asthetically blends in well with the front of the truck. Great job on the design and the production!



by:

We really like our blue ox towbar mounts from etrailer. We're excited to be able to flat tow our 2001 F-250 with our ATV in the bed. Real game changer,, Thank You etrailer
A few pictures of how I attach it



by:

4 it's in solid, but the [finish] that was used killed it from being a five.

The installation took about four hours. I had a tight interference fit between the frame rails. I wish I had an 18-24" linear ram, but I didn't. So two hydraulic floor jacks, with 4 - 24" welding clamps, and two 12" C-clamps, a short 2# sledge did the trick. Nothing a little spray paint can't fix. Four bolt holes lined up nicely. Two 1/2" drilled holes from the bottom were easy leverage to set up. Two 1/2" drilled holes inside to outside, were quite the challenge to get behind the drill. All fasteners now torqued to specification with red locktite. Added the 1/2" safety cables, made an adjustment in the lower airdam. And presto, here you have it. Now time to set up diode kit, and brake away switch installation.



by:

It took a while to fill the order but it was for an old truck and probably needed to be made special order. I was kept updated by your staff and it finally worked out. Thanks


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See what our Experts say about this Blue Ox Tow Bar Base Plate

  • Parts Needed to Flat Tow 1999 Ford F-150 Behind Motorhome
    The first thing you need to flat tow your 1999 Ford F-150 is the correct base plate kit which for that you'd want the part # BX2131 for if you have a 4WD truck or the part # BX2124 for a 2WD truck. 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. One of the most popular compatible tow bars is the Blue Ox Avail # BX7420 which comes with safety cables. The coiled design helps keep the cables...
    view full answer...
  • Recommended Base Plate Kit Compatible With Blue Ox Aventa LX Tow Bar For 2000 Ford F-150 4WD
    I have another option but the Roadmaster Direct-Connect Base Plate Kit # 456-1 will not work with the Blue Ox Aventa LX tow bar you currently have. To be able to use the Aventa tow bar with your 2000 Ford F150 4WD w/ Manual transfer case I recommend the Blue Ox Base Plate Kit # BX2131 as it is a confirmed fit for your vehicle and is compatible with the Blue Ox Aventa tow bar. To complete your flat tow setup you will also need wiring for your lights, safety cables, and a supplemental braking...
    view full answer...

Do you have a question about this Tow Bar Base Plate?


Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S
Employee Michael B
Updated by:
Michael B

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