bing tracking image
  1. Accessories and Parts
  2. Roadmaster
  3. Tow Bar
  4. Quick Disconnects
  5. Car Side and Tow Bar Side
Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars

Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars

Item # 910021-00
Our Price: $110.39
You Save: $27.96
Accessories and Parts
Shipping Weight: 21 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Replace the crossbar and quick-disconnect brackets for your Roadmaster tow bar. 1-800-940-8924 to order Roadmaster accessories and parts part number 910021-00 or order online at Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (221)
  • Q & A (0)
  • Videos (5)
  • Photos

Roadmaster Accessories and Parts - 910021-00

  • Tow Bar
  • Quick Disconnects
  • Car Side and Tow Bar Side
  • Roadmaster

Replace the crossbar and quick-disconnect brackets for your Roadmaster tow bar.


  • Replaces the crossbar and quick-disconnect brackets for your Roadmaster tow bar
  • Mounting hardware included


  • Roadmaster tow bars:
    • Nighthawk
    • BlackHawk and BlackHawk 2 All Terrain
    • Falcon, Falcon 2, and Falcon All-Terrain
    • Sterling and Sterling All-Terrain
    • Eagle 8000

Note: If you are replacing quick-disconnects on your Sterling All-Terrain tow bar, cable anchor plates (RM-910653 - sold separately) may also be needed.

910021-00 Replacement Road Master Quick Disconnect Towbar Base Assembly

Installation Details 910021-00 Installation instructions

Video of Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars

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

Video Transcript for Roadmaster Quick Disconnect Tow Bar Base Assembly Installation - 2012 Fiat 500

Hey everybody. Rob here at Today we're going to be taking a look at the Roadmaster Quick Disconnect Crossbar that goes on to our crossbar style base plate. Now this is going to be a replacement item. So if you've already had a crossbar, maybe you're missing some of the pins, maybe you got damaged. This is going to be a great replacement for that.

But at the same time, if you got a crossbar style base plate, and you're new to towing, depending on what tow bar you picked up, it may or may not come with the crossbar, but it is going to be required if you're using this style base plate. There's a really simple process to get hooked up and use it. We're simply just going to have a couple pins on top, that's going to hold the crossbar to the base plate, and then we'll have some larger pins right here, which are actually going to be the attachment point for our tow bar.Simply just remove the pins. The tow bar will slide in here, and secure it down on each arm like this. And it is a really quick, easy way to disconnect.

We'll have these two pins on top. Once we have our tow bar unhooked, we can remove these pins, lift up on the bar, and easily remove it so that we can get the arms pulled out of our base plate and have a nice clean look on the front of our Fiat.Now the crossbar is going to come with all the brackets and hardware that's going to be mounted onto the tow bar arm itself. And it's extremely easy to put on, just a few bolts on each arm, and getting everything lined up so it goes on smoothly. In fact, let's go and show you how to bolt everything up, and how to get all the settings right. So our quick disconnect is going to come with the bar as well as the brackets to get everything installed.

Now it is going to go on just like the original one, since this is a replacement. So we can go ahead and pull the pins out of the top here.Just lift it open, pull the pin out, and then allow the bracket to come off the back of it. We're going to do that on each side, is we're actually going to be bolting these to our base plate. Now these are labeled, so you want to make sure you grab the correct one from the passenger side of the car, they should grab the passenger side bracket. Then once we have the bracket, we want to grab...

There'll be a little plate with two holes in it, it's going to go right on the front of the bracket and will lineup with the two holes. We're going to grab two of the bolts out of your kit. Go through that plate, and through the bracket, we going to line it up on our base plate. Should hold itself there, just like that. We going to grab a flat washer for each one of the bolts, I'm going to follow that up with a split lock washer.Then finally, we're going to secure it down with a hex nut. Now, at this point, we just want to get them snug, just hand tight. We don't want them to be really tight yet, because we will have to make a few adjustments and we need to be able to slide that bracket left and right, so we can get a nice snug fit with the crossbar. That's going to be the same combination of hardware for the other side. So we'll go ahead and get that in place, and get the other bracket on the driver's side. So now we can grab the actual crossbar itself, and you'll notice on the bottom, we're going to have this kind of a nub sticking out. That's going to fit right into the center hole of each one of the brackets. But then at the same time on the top, we're going to have a hole that the piece is going to come through the top.That's already on the bracket. So that's why we need those adjustments. So we want to line up the hole, but then on the other side, you may have to kind of slide, because you can see ours isn't perfectly lined up. So one side went in, just need to slide that bracket over so we can get it to go in. And then we want to make sure that it's centered on our car as close as we can, and just kind of look and we can adjust it left and right. And once you get your bracket in place, you kind of want to snug these nuts down as best you can. Now obviously, the bolt is probably going to be spinning a little bit on the other side and we don't need it to be extremely tight, but we want it to be snug to where it won't move that much on us.And once we have it nice and snug, you want to test fit the bar, make sure you can easily remove it, and put it back in place. And it's not getting stuck or binding up. Once you're comfortable, abd the bar is going on easily, sliding, coming out, we're going to remove the bar and we're going to fully tighten these bolts. But you do want to be careful not to move that bracket around when you're tightening it up. I'm going to use a 19 millimeter socket and wrench to tighten these up, but you can also use a three quarter inch socket and wrench as well. We use the wrench on the back end to hold the nut in place. We'll go onto the other side and tighten those as well. I want to grab the crossbar again, make sure nothing moved on us and, that the bar could still go into place.You can see ours is a little bit tight, so we may need to loosen those bolts up, make some very, very minor adjustments. But the main goal is that you can easily put the crossbar over the base plate, and take it off easily. We don't want it to bind up kind of like how it's doing now. It's a little bit. One of these probably just needs to move just a little bit. So we're going to loosen those bolts up. Make sure it's nice and easy to put on and take off. Once you have it adjusted, you're going to want to take a torque wrench and torque your hardware down to the specified amount in the instructions. And then make sure you repeat that for all the hardware on both of the brackets. Then you can put your crossbar back on, make sure to put in the retaining pins, and go all the way through that top. Make sure it fully latches onto the pin itself. But again, I'm Rob here at That'll finish up your look at the Roadmaster quick disconnect crossbar on our 2012 Fiat 500.

Customer Satisfaction Score:

Customer Reviews

Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars - 910021-00

Average Customer Rating:  4.8 out of 5 stars   (221 Customer Reviews)

Replace the crossbar and quick-disconnect brackets for your Roadmaster tow bar.


An excellent sturdy towing system that raised the connection point high enough where no drop hitch was needed.


Service from etrailer was excellent. I also found that the video showing the installation process (for the plate attached to the car) was invaluable.There was a bit more pushing, pulling and adjustment than the video showed to get it to fit than the video showed but it was otherwise excellent. I haven't tried to flat tow the car yet but the products appear well made and more than strong enough to do the job safely. I added a ''during'' and an after photo of the car.


The towbar on my 2012 Honda Fit was bent when it collided with my RV tow gear (Honda brakes failed after I disconnected from the RV, but that's another story). I went on line and found the Roadmaster site that asked me to identify my car by year, make, and model. It immediately took me to the exact page that identified the part that I needed. Rather than continue on line, I called the Roadmaster number and immediately spoke to a young lady who took my order and told me it would be delivered the following week. I gave her my mailing address in Key West (a private mail box). After I hung up, I discovered the actual physical address where my RV is located. I called back and was connected with Ashley. I explained that I needed to change the address. She re-took the order and also confirmed the tow bar would be delivered the next week. Sure enough, the tow bar arrived today, on Wednesday of that following week. Great service from Roadmaster, Ashley, and Ashley's partner who first took my order. Many thanks!

Bryan W.


The replacement cross bar on my tow gear fit perfectly and is working just fine after a year. The exact product I needed when I needed it, and it arrived quickly. Great service!


I am super happy with this and the base plates for it. I am impressed that these parts were bought separately and fit like a glove together!


Always a pleasure to deal with eTrailer. Very knowledgeable staff that goes out of their way to help find the right product and answer any questions asked. This is our “go to” company for all products needed for our RV.



Several trips taken with our Roadmaster equipment! Can’t believe how easy it’s been to connect and disconnect our car and no issues during our travels! Would definitely recommend eTrailer for all your towing products!


All the parts of my Roadmaster tow bar setup fit perfectly and all the holes lined up. The video on utube helped a lot. It only took about 45 minutes to drill the two holes in the frame mount all the parts and had it ready to tow with.


Very heavy duty. Much more than needed for my application but more is better than not enough.
Heavy duty also means heavy in weight. Difficult to maneuver and carry.


Be careful when ordering. The photos for the actual tow bar show this crossbar as being included. It is not. You will need this crossbar with most tow bar applications.


I purchased the Roadmaster Crossbar-Style Base Plate Kit w/ Removable Arms, The Roadmaster Nighthawk Tow Bar, Quick Disconnect Crossbar, Universal Hy-Power Diode Wiring Kit, and Roadmaster Guardian Rock Guard in order to tow my 2020 Ford Raptor behind my Class A. Everything bolted on beautifully and the craftsmanship was fantastic. Ordering from etrailer was easy and the parts arrived within a few days with no problem. I watched numerous [online] videos to learn how to install everything and they saved me a lot of time. Overall, I'm very happy.


A perfect fit for my new tow Car. I really appreciated the step-by-step instructions with color photos.


Except for the technician having me order the wron part first. The company has done exceptionally well. I will use them again.


It is great. Easy to hookup. Easy to take down. Love it.

Jeanette W.


Awesome hook up ability. No issues at all.


Got here a lot quicker than expected. Sales person was excellent. Fits perfect. Bought base plate and hitch also . Everything went perfect . Easy to read plans . Great company to do business with. Thanks again.


This is a replacement for one that was damaged in an accident. I have been very happy with the product so I'm sure this will be no different. etrailer service is excell and they have been very helpful.


Should have been listed package. Had to order it separately not knowing it was needed. Little disappointed.


Complete quick disconnect tow bar system. Easy install. The baseplate install calls for red thread locker. This does not. I decided to use blue for additional safety margin.


I received it today and it is perfect. Thanks for the quick turn around. I will send a pic soon.


Very well made and I know I will get many years of use from it.


I rate this product 5 star. It reflects quality in construction and assured confidence to the user. Towing can be a worrying trial. This product helps me relax while towing knowing it providing a high level of towing assurance.


Great etrailer customer service, and Road Master tech support were superb to match equipment parts for our situation.


It was just what I needed, customer service was awesome, and delivery was quicker than expected.
Keep up the great work.


Great service, perfect fit, fast delivery! Thanks so much!


Nicole was extremely helpful and I would recommend to anybody. It took a couple of calls to figure out what I needed and Nicole was very patient and helpful.


good quality and fast delivery


I use this crossbar assembly on my 2015 Honda Fit and actually prefer it over the direct connect assembly. Combined with the Falcon All Terrain tow bar it gives me more disconnect flexibility on uneven ground and gravel. Even with the Falcon, I have had one of the tow arms bind when disconnecting but as long as I can loosen one arm, I can pull the entire crossbar off the TOAD and easily disconnect the second tow arm without much effort. That's a big plus when you have to drop the TOAD quickly to get the coach into a site.

Show More Reviews

See what our Experts say about this Roadmaster Accessories and Parts

< Previous
123. . .11

Do you have a question about this Accessories and Part?

Info for this part was:

Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Patrick B
Expert Research:
Patrick B
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Zack K
Video Edited:
Zack K
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Andrew K
Video by:
Andrew K
Employee Andrew L
Video by:
Andrew L
Employee Cole B
Installed by:
Cole B
Employee Randy B
Test Fit:
Randy B
Employee Robert C
Test Fit:
Robert C
Employee Shelly K
Updated by:
Shelly K
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Amanda K
Updated by:
Amanda K

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.