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  1. Tow Bar Base Plate
  2. Blue Ox
  3. Removable Draw Bars
  4. Twist Lock Attachment
  5. Completely Hidden
THIS ITEM IS NOT A FIT FOR
2009 BMW X3
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Blue Ox

Blue Ox Base Plate Kit - Removable Arms

Part Number: BX3620
In Stock
$436.36
Retail:$766.80
You Save: $330.44
Tow Bar Base Plate
Not Confirmed to Fit

2009 BMW X3

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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 easily removable arms that offer a seamless look when you're not flat towing. Base plate bolts directly to your chassis, so no welding is required. Great Prices for the best tow bar base plate from Blue Ox. Blue Ox Base Plate Kit - Removable Arms part number BX3620 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Blue Ox Tow Bar Base Plate - BX3620

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Ready for Flat Towing: Provides secure attachment points so your vehicle can be safely towed behind your RV.
  • Blends In When Not Towing: Hidden design with removable arms keeps the front end clean and seamless.
  • Quick Hookup and Release: Twist-lock arms insert and remove easily for faster connections on the road.
  • Built to Last: Durable, powder-coated steel resists rust and corrosion through long-distance travel.
  • Works with Multiple Tow Bars: Pairs with Blue Ox bars and adapts for Roadmaster or Demco systems.
Made in USA

Features to know about

Made for a Clean Front End: Hidden Base Plate with Removable Arms

When you’re not towing, the hidden design of this base plate keeps the front of your vehicle looking clean and factory-finished. The brackets stay tucked away behind the fascia, and the removable arms come off with a quick twist. Once removed, plug in the included receiver covers to keep dirt and debris out and maintain that finished look. No bulky metal sticking out, no risk of catching your leg on anything.

Blue Ox base plate shown on vehicle with arms removed for a clean, hidden appearance while not towing.

Blue Ox base plate kit with removable arms attached to the front of a vehicle, showing hidden design for flat towing setup.

Quick Hookups Anywhere: Twist-Lock Arms that Secure with a Pin

Connecting up is straightforward thanks to the twist-lock attachment system. Each arm slides into its receiver, rotates into place, and locks in with a simple pin pull. The process is quick whether you’re parked on level ground or uneven terrain. It’s a sturdy setup with bracket spacing of 20-1/2" and a bracket height of 12", so matching your tow bar height is simple.

Close-up of Blue Ox base plate twist-lock mechanism showing how removable arms attach or detach from receivers.

Solid Connection You Can Trust: Steel Construction That Spreads the Load

This base plate bolts directly to your chassis—no welding required—and uses durable steel that’s powder coated to resist rust and corrosion. The design spreads towing forces evenly across the mounting points to help reduce stress on your suspension. The included hardware ensures a solid, reliable connection that stands up over long miles of towing.

Keep Your Setup Flexible: Works with Popular Tow Bars and Adapters

You can pair this base plate with Blue Ox tow bars for a direct match or use it with other brands through their dedicated adapters—Roadmaster adapter (RM-031 or RM-031-5) or Demco adapter (DM9523041), each sold separately. Integrated mounting points make it easy to attach an electrical connector plug bracket so your wiring stays neat and ready to connect when you hook up.

DIY-Friendly Install: Straightforward Bolt-On Mounting

For those who like to handle their own projects, this kit keeps things manageable. It mounts securely using included hardware and lines up directly to factory chassis points, so there’s no welding involved. With patience and standard tools, you can get it bolted up cleanly and ready for the road by the weekend.

Specs

Dimensions

  • Distance between brackets: 20-1/2"
  • Bracket height: 12"

Warranty

  • Warranty: 3-Year warranty

Labeled diagram showing flat towing components including tow bar, base plates, safety cables, wiring, and supplemental braking system between motorhome and vehicle.

  • Tow bar: Links your towed car to your motorhome.
  • Base plates: Attach to the custom-fit base plates that install on the frame of your towed car.
  • 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.
  • Supplemental braking system: Brakes your towed car when the brakes in your motorhome are activated.

BX3620 Blue Ox Baseplate - Removable Tabs

Installation Details BX3620 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.8

5143 reviews
5 Stars
(4432)
4 Stars
(493)
3 Stars
(103)
2 Stars
(46)
1 Star
(69)
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Custom designed to fit your vehicle so it can be safely towed behind your RV, this base plate has easily removable arms that offer a seamless look when you're not flat towing. Base plate bolts directly to your chassis, so no welding is required.

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The 2025 Trax license plate frame sits lower than shown in the instructions provided with this kit, to the point where it obstructs access to the 7-way electrical connector. An alternate scheme for mounting the plate will be required if your state requires the front plate to be displayed.



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The Blue Ox base plate kit was installed without a hitch on our 2024 Maverick Hybrid. It was a perfect fit! It was installed by Fantasy Truck, a referred installer of etrailer, in Odessa, MO. Brett was very easy to work with and did an excellent job! I highly recommend the Blue Ox baseplate and Brett @ Fantasy Truck!



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Fits my 2013 mini cooper non turbo. Does take a few hours to install this Fit was good. The hardest part is removing the front bumper and reinstalling it. You do have to cut the lower bumper grill in three places take your time locating the exact spots for cuts. I have pulled Mini Cooper about seven thousand miles now with this Blue Ox and has worked great



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The safety Cable installation left a little to be desired. I'm not sure if I installed it as designed. The cables we're really long enough to go aroiund the frame rails on our Jeep, under the Radiator mount, Aluminum Frame, I was only able to go around the Raditor mount on both sides. Didn't really seam like it was the right way, but I suspect it's only for if something comes loose that there isn't a catastrophic breakaway.



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I was given a Blue Ox Tow Bar and needed Base Plates for my Ford F150. In my online search, E-Trailer had the best price, so I ordered them. Delivery was a few days earlier than expected. I read the installation instructions and it sounded fairly simple to install, so I decided to tackle it myself. I began it about six pm and had the job completed and cleaned up in just over two hours. The job required removal of the bumper and tow hooks and drilling of two holes. Also William at E-trailer was of great help in the correct parts and keeping me informed of the delivery.



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After installing over 500 baseplates on various vehicles, this one was probably the toughest one . It had the off road package on it . But it fit great after I had to remove a lot that had been bolted up for 27yrs.



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Tried to install this baseplate. It was a challenge to say the least. It did not fit the frame of my Jeep YJ without making modifications to the mounting plates on the driver side. I had to use a cut off wheel and remove 3/16 of an inch from the driver side spacer (which is too long. See pictures) in order to get it to clear the frame. Also, instructions say to drill an additional 1/2 inch hole in the frame for a third mounting bolt. BUT....the internal frame construction doesn't allow the nut on a stick to pass under the existing reinforcements for the bolts that mount the steering gear to the frame. Nut is way too thick to pass under the internal tubing in the frame from manufacturer (AMC).



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This was instilled on a 2024 Chevrolet Colorado Z71 truck. I watched your video online with this exact model truck and the words I remember most was “and we did not have to do any trimming”. Well my truck was certainly different than what was on video. Guess it’s because it’s a late build 2024 (end of September 2024) and the grill system was maybe what would appear on the 2025 models? There was lots of trimming involved. I also will tell you the mounting holes both for the frame and the bumper back plate did not line up and required some modifications to fit. I would like to say this job is not for the faint of heart. I luckily have a mechanical/machinist background so was able to get the job done. Have not tested it yet but will be soon. Good luck to those of you who are planning on installing it yourself. Just remember it can be done. Just take your time.



by:

Items arrived in 2 days, free shipping. All appeared in new undamaged condition.



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The Blue Ox base plate for my 2015 Kia Soul is well manufactured and, with a little bit of mechanical skill, easy to install. It fit perfectly without issues. Brad from etrailer provides a step-by-step installation video that is outstanding and nicely guides through the process from beginning to end. I highly recommend this Blue Ox base plate from etrailer.



by:

Well the blue ox base plate actually fits my turbo engine. The Curt didn't fit as advertised.



by:

Super high quality baseplate for towing by Blue Ox. Instructions, videos, shipping (one day!) and overall experience was awesome. A bit pricey but their quality and the additional support by E Trailer cannot be beat! BTW (E Trailer) the baseplate fits three different Jeep configurations but did not call out the Recon package. After looking at other brands which showed there's to fit the 3 variations AND the Recon, I figured it would fit and it DID. You should definitely upgrade to include the Recon Edition.



by:

lways great to shop at etrailer, especially the tech experts. Royce did an awesome job with our order. Everything fit perfectly and the help video provided the guidance I needed.

We installed the baseplate on our 2023 Encore GX AWD as well as the light harness and breakaway switch. A couple of items were incorrect but Royce corrected the issues with no problems.

Thanks again etrailer!



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2019 Ford Ranger baseplate worked and fitted fine for me. 73 yrs old took me a couple hours but took many breaks. Younger could do it less than hour I'm sure.
Also works fine with my Blue Ox tow bar.



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The entire process was super simple and I got the time within 2 days! Couldn’t be happier!



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Very well designed



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Moderate to difficult to install but well worth it. Looks and works great.



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This installed on our 2015 STI without any real problem. It has been in service for 40 days or so and has had zero issues. Great fitment and great product!



by:

It fit may new 2015 Subaru Crosstrek XV Toad as advertised. It has been an excellent addition for towing my auto behind my motorhome.



by:

Finish of the base plate was excellent. The unit would get five stars if I didn’t have to notch the frame flanges to install it. After careful torquing on the install, I have a solid install after 8,000 miles of towing.



by:

This Blue Ox Base Plate Kit for my Subaru Crosstrek was in stock and delivered next day. Blue Ox told my dealer they could get the Base Plate kit build and sent to them in 12 weeks. I got this base plate in one day.
I'm very pleased with etrailer.com and their parts availability.



by:

Ranking above has nothing to do with etrailer who I have used for may items and had no issue.

Installed on a 2016 Subaru Impreza, Third Blue ox tow bracket I have installed on a Subaru.

Instructions are fair, web site with colored pictures helps, although they could have some more detail on pieces to be cut or trimmed would help.

Biggest issue was the reinstall of the bumper. I had to do some major removal of the rear of the fog lights plastic support before i could fit the bumper correctly.

I felt that this was a design issue with the tow bracket design.



by:

Excellent Product. Heavy Duty. You can install it if you have basic skills. After complete, we took our 2017 Subaru CrossTrek on a 6000 mile cross country tow. Worked great!


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

  • Can Curt Tow Bar be Used with Blue Ox Base Plate Kit
    Hey Oscar, yes you can use a Curt tow bar like the Rambler part # C25DQ with a Blue Ox base plate kit like the part # BX3620 that you referenced. Do you have a Curt tow bar already? What are you flat towing?
    view full answer...
  • Base Plates and Accessories for Flat Towing 2018 Subaru WRX
    The Blue Ox # BX3620 is indeed the correct base plate kit for your 2018 Subaru WRX. In addition to the base plates, you'll need a tow bar like the non-binding Blue Ox Ascent, part # BX4370. A non binding tow bar allows you to attach and unhook your vehicle easily even when on uneven terrain and when the vehicle isn't perfectly aligned behind the motorhome. Safety cables are included. You'll also need a wiring solution like the Roadmaster Diode System, part # RM-15267 and a supplemental...
    view full answer...
  • Parts Needed to Flat Tow 2017 Subaru Crosstrek
    First you need a base plate that is confirmed to fit your 2017 Subaru Crosstrek. For that we have the Roadmaster part # 52922-1A that fits the manual transmission models of the vehicle like yours. This would work well with the Sterling tow bar part # RM-576 which is one of the nicer tow bars available. This comes with safety cables as well. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight...
    view full answer...
  • Complete Flat Towing Setup For A 2014 Subaru XV Crosstrek
    For your 2014 Subaru XV Crosstrek, I recommend checking out the: -Blue Ox Base Plate Kit # BX3620 for a base plate kit. This base plate kit is custom fit for your vehicle, and features easily removable arms that keep a sleek finish to your vehicle when not in use. Next, to go with your Blue Ox base plate, I recommend checking out the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar for Blue Ox Base Plates # RM-677. This tow bar has a weight capacity of 8,000-lbs, which is more...
    view full answer...
  • Blue Ox Base Plate for 2017 Subaru Crosstrek
    For your 2017 Subaru Crosstrek base plate kit you can use the Blue Ox # BX3620 kit or the Roadmaster # 52922-1A kit. An important question is what tow bar will you use and will you need additional adapters for one or the other. You can email me your for bar recommendations, or to let me know what bar you have for more specific recommendations.
    view full answer...
  • 2017 Subaru Crosstrek Manual Transmission Base Plate and Tow Bar Options
    As long as you have a manual transmission on your 2017 Subaru Crosstrek you can use the Roadmaster EZ2 Base Plate Kit - Removable Arms # 52922-1A which is compatible with Falcon 2 # RM-520, Stowmaster # RM-501 or # RM-504, Falcon # RM-522, Sterling # RM-576, or BlackHawk 2 # RM-422. Another base plate option is the Blue Ox Base Plate Kit - Removable Arms # BX3620. This baseplate is compatible with the Alpha # BX7380, Aladdin, Avail # BX7420, or Acclaim # BX4330. Let me know if you'd...
    view full answer...
  • Base Plate Kit and Tow Bar Recommendations for 2020 Subaru Impreza
    Tow bars are universal fits so we first need to get a base plate on your 2020 Subaru Impreza and for that I recommend the Blue Ox # BX3620. Then for a tow bar I recommend the Blue Ox Alpha 2 Non-Binding Tow Bar # BX7380. This matches up with the Blue Ox base plate kit, has a 6.5K weight capacity, and comes with safety cables. Attached is a review video for the tow bar and the instructions for the base plate kit to check out. For a complete flat towing setup you will need a base plate...
    view full answer...

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


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Written by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S
Employee Carrie F
Updated by:
Carrie F

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