bing tracking image
  1. Tow Bar Base Plate
  2. Demco
  3. Fixed Draw Bars
  4. Visible
THIS ITEM IS NOT A FIT FOR
2020 Audi Q3
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Demco

Demco Classic Base Plate Kit - Fixed Arms

Part Number: DM9517321
In Stock
$430.42
Retail:$603.00
You Save: $172.58
Tow Bar Base Plate
Not Confirmed to Fit

2020 Audi Q3

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

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

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
This custom-fit base plate kit lets you hook up your tow bar to your vehicle. No external crossbar means that only the base plate tabs are visible. Simple bolt-on installation with included hardware. Great Prices for the best tow bar base plate from Demco. Demco Classic Base Plate Kit - Fixed Arms part number DM9517321 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (305)
  • Q & A (0)
  • Photos

Demco Tow Bar Base Plate - DM9517321

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Ready for Flat Towing: Provides solid attachment points so you can safely tow your vehicle behind your RV.
  • Blends In When Not Towing: Hidden reinforcement and no crossbar keep only the tabs visible.
  • Built to Last: Durable steel construction handles towing stress through thousands of miles.
  • Simple Bolt-On Setup: Installs securely with included hardware—no welding required.
  • Works With Multiple Tow Bars: Adapters available for Blue Ox, Roadmaster, and other brands.
Made in USA

Features to know about

Built for Reliable Long-Haul Towing: Heavy-Duty Steel Construction

When you’re logging serious miles, you need hardware that can take the load. This custom-fit base plate kit spreads towing forces evenly across the chassis to help minimize strain on the suspension. The sturdy steel build uses hidden reinforcement so the bracket stays dependable and solid mile after mile.

Clean, Uncluttered Front End: No Crossbar or Large Brackets in Sight

If you like a simple, factory-style look when you’re not towing, this setup delivers. It has no external crossbar or large protruding brackets—only the base plate tabs remain visible. The compact design keeps the front of your vehicle neat and easy to walk around when the tow bar is detached.

Confidence in Every Connection: Fixed Draw Bars with Secure Bolt-On Fit

A straightforward bolt-on design means no welding or fabrication. The base plates mount permanently to your chassis using the included hardware and instructions. With a bracket spacing of 31" (center to center) and a height of 18-1/2", it gives you precise reference points for fine-tuning your towing setup.

Keep Your Favorite Tow Bar: Adapter Options for Multiple Brands

Already own a tow bar from another manufacturer? You can keep using it. This base plate is compatible with all Demco tow bars and can connect to other brands when paired with the right adapter (sold separately). An electrical bracket is built in so you can easily mount a round plug connector up front for a tidy wiring setup.

Demco base plate adapter set for tow bar compatibility, showing interchangeable hardware components for connecting various tow bar models to Demco base plates

DIY-Friendly Setup: Straightforward Installation with Included Hardware

For weekend installers, this kit keeps things simple. Everything bolts securely into existing mounting points with no welding required. Clear instructions and all necessary hardware are included, so it’s ready for an at-home project that ends with a solid, confidence-inspiring towing connection.

Specs

Dimensions

  • Distance between brackets: 31"
  • Bracket height: 18-1/2"

Warranty

  • Warranty: 1-Year limited warranty

Tow Bar Adapters

  • Roadmaster Eagle and Eagle 8000: DM9523014
  • Reese Tow Champ and Valley Industries: DM9523015
  • Roadmaster Falcon 5250: DM9523023
  • Blue Ox, Aladdin, Aventa II, Aventa LX, and Alexus: DM9523034
  • Roadmaster Tracker, Falcon 2, Falcon All-Terrain, Blackhawk, Blackhawk All-Terrain, and Sterling tow bars with serial numbers up to 14,500: DM9523036
  • Roadmaster Nighthawk All-Terrain, Sterling All-Terrain, and Sterling tow bars with serial numbers 14,501 and above: DM9523062

9517321 Demco RV Classic Baseplates

Installation Details DM9517321 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

304 reviews
Review sort icon
This custom-fit base plate kit lets you hook up your tow bar to your vehicle. No external crossbar means that only the base plate tabs are visible. Simple bolt-on installation with included hardware.

by:

The quality of this base plate is very good. On my 1990 Cherokee the spacing of the 1/2" bolt holes required me to enlarge the holes for proper fit. The instructions are shamefully poor quality as are the installation photos in the instructions. Demco needs to improve.



by:

Fast delivery and great price. Replaced an old Roadmaster baseplate (which was a shin-getter) for my Saturn Vue, with a Demco baseplate. Fits perfect! New baseplate is barely exposed to my shins. Directions were very clear, and I installed it in about 2 hours. It even came with the thread lock required. etrailer communicated every step of my shipment, even following up after delivery.



by:

Works well on my 2025 GMC 2500HD



by:

One year follow up....

The Demco
unit is a solid base plate overall. Basemount mounting holes are slightly off compared to the frame which made installation slightly difficult, however, not too difficult to rectify. Unit works well with just over 3000 miles in the past year.



by:

After reviewing the top name brands for tow bars I was really exited first with Roadmaster's pin style base plate connectors, but when I realized that it would require cutting and possibly drilling I took a second look and decided to install the Demco base plates and get the tow bar from them as well.

These plates can be installed in a mere 2 hours if you have all the tools ready to go. I have the fortunate luck that my truck is equipped with the air suspension and so lifting it to the highest setting and driving up on 12in ramps gave me ample amount of room to work under the front bumper area.

The installation is seriously easy and requires no special tools, other than a set of metric sockets and a torque wrench. The factory tow hooks are removed and these base plates fit in the exact same space without any cutting, not even the plastic cover behind the pumper needed to be removed (though for some odd reason the instructions did and I followed them on the driver side but when I realized that I could install the plate without this step, I omitted it on the passenger side). Despite my initial worry of wanting a nearly invisible look, these bars are remarkably clean looking.



by:

Have not used it yet, but probably the easiest thing to install just simple three bolts. and I don’t believe that you could find anybody to ship something. Any faster.



by:

One of the mounting holes on top of the frame, the welded nut, is out of alignment and I ended up using the bolt from my OEM tow hooks. Perhaps consider a pilot point for these especially if nuts are not in plane with the rest of the assembly. Other than that the tow bar is operating great. Nice low profile and blends into the stock ranger front end. Fits well with the Curt adjustable tow bar.



by:

Perfect fit on a 2001 Chevy Tracker feels solid looks good
Fairly ez to install Have not towed it yet am waiting on towbar
So that I can try it out



by:

I purchased this with the intent of having my local RV repair shop install it for me. I was curious about how it was installed so I read the directions and thought, this doesn’t look that hard. I was right. The directions were clear and accurate and in a little over two hours I was closing the hood on a finished install. Quality all the way around and really fast shipping. Three days after placing my order it was delivered.



by:

These were a perfect fit for my 2026 Sierra 2500HD. The instructions are in desperate need of being updated. I was able to complete the installation without removing the grill and bumper. All that was required was the removal of the tow hook and enlarging the facia hole to accommodate the baseplate.



by:

wrong part!!!
1998 Jeep Cherokee Lim
ited



by:

Poor paint quality. Paint was chipping off down to the metal even before I got them out of the box. Like everything else anymore, over priced and lacking quality.



by:

Great service - ordered Sunday night, delivered Wednesday lunch time, installed Wednesday afternoon. Excellent information, instructions - took about 4 hours, had to file 2 bolt holes a slight bit, but the fit was very good.

I am very happy with the baseplate and would recommend it to anyone.

Before and after pictures attached.



by:

This is the second time we've ordered these kits. They work very well for our needs, staff is very helpful and responsive, and shipping is fast.



by:

Received on time and installed as directed. I'm 78 and only had one problem, that of having to bend down a tab on the vehicle frame. Had to go buy a punch. However, the left base plate front holes for the tow bar attaching pin was not in alignment. The pin would not go through. Contacted etrailer and received a replacement in no time. Removed the bad one and reinstalled the new one. Then took the vehicle to my hitch guy for brake wiring. He double checked my work and said everything was in great order and a good fit. With the virus lockdown, I have not towed other than home from getting the brakes set up. But that worked ok.



by:

Just sold the Tracker that the base plate was installed on but it had several thousand miles of towing on it with no problems . Installation was not too difficult , and it hardly showed . Seems a bit expensive for what it is , but it is custom made so I get it . Very heavy duty steel with the bonus of it actually reinforces the front end of the Tracker .



by:

They fit our 2007 Hummer H-3 perfectly. Very easy to install and appear to be well built. We have only used them for a test pull and they worked perfectly.



by:

The kit was easy to install. Quality control could be better. I wasted time trying to get the frame mounts fitted, because they had them labelled backwards. Some of the nuts they supplied were the wrong thread. It has a real good thick paint job. But that tends to make things hard to put together. I had to sand down the Falcon adapters. I also had to modify the fog light spoiler, but that was a given as it is a rare option. All in all, it looks good and works fine.



by:



by:



by:



by:



by:

Easy on and strong and durable product that is well made.



by:

Excellent costumer service!!!



by:

Received shipment fast. I ordered the wrong adapters and call customer service right after delivery. Got excellent service from Brittany ordered the right adapter, got a return label while on the phone to my email. Installed the demco base plates with a few problems. Fit was tight but nothing a small mallet couldn't handle. They do mention in instructions that you may need to elongate one of the holes. Mine was for a 2016 GMC 2500. Definitely need to make hole bigger on the truck frame. I would do it before inserting the baseplate. Otherwise great product good tight fit.

Ace profile picture

Ace

3/28/2025

Still working great. No issues whatsoever...


25
25

See what our Experts say about this Demco Tow Bar Base Plate

  • Will a Baseplate on a 2018 GMC Sierra 2500 Work w/a Grille Guard?
    Hey Todd, thanks for the information! The Demco Classic Base Plate Kit item # DM9517321 is not going to be compatible with Westin HDX Grille Guards like item # 57-3790. All of the baseplates like item # BLU22QR and item # RM-3180-2 for your 2018 GMC Sierra 2500 install in the same location as well. You'll need to remove the grille guard permanently if you want to flat tow your truck. Here are the parts I recommend for flat towing your 2018 GMC Sierra 2500: Tow Bar and Safety Chains -...
    view full answer...
  • Parts Needed to Flat Tow 2018 Chevy Silverado 2500
    Hey Tommy, yes everything you mentioned would be what you'd need to flat tow your 2018 Chevy Silverado 2500! Demco Air Force One SM99209 Second vehicle kit Air Jumper hose SM99666 7 Demco Base Plate DM9517321 Wiring Kit RM-15267 ExaliBar II Tow bar DM9511013 2 hitch, 10.5k lbs Battery Charge line RM156-25 Battery Disconnect RM-766 I linked all of the parts on this page for you to get to easily if you don't already have them in your cart!
    view full answer...
  • Parts Needed to Flat Tow 2015-2018 Chevy Silverado 2500
    There are a number of parts needed for you to flat tow a 2015-2018 Chevy Silverado 2500, starting with compatible base plates. The correct fit will depend on if you have tow hooks or not. If your Silverado DOES have tow hooks, you need the Roadmaster MX Base Plate Kit # 3167-3 along with the Roadmaster Nighthawk Tow Bar # RM-676, which I like because of how easy it is to connect to the base plates and the fact it comes with integrated safety cables and LED lights. With this set up the...
    view full answer...
  • Recommended Flat Towing Set Up for a 2012 GMC Sierra 2500
    I would be happy to help you set your 2012 GMC Sierra 2500HD up for flat towing. I total understand there are a lot of options and the manufacturer's parts sometimes do not like to work together. To flat tow your Sierra you will need the following parts: Tow Bar and Safety Chains - etrailer XHD Non-Binding Tow Bar - item # e94ZR Base Plate Kit - Demco Classic Base Plate Kit - Fixed Arms item # DM9517321 Wiring Harness - Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit item # RM-15267 Supplemental...
    view full answer...
  • Does This Tow Bar Come With Brackets and Safety Cables
    This tow bar does come with safety cables, which is a nice bonus. If by "Brackets" you mean "Base Plate Kit" that fits your vehicle, then no, those are made specifically to fit your towed vehicle and sold separately. For your 2015 GMC Sierra 3500 you can use the Demco # DM9517321 Base Plate Kit to connect your truck to your etrailer # e97ZR tow bar. To flat tow you will additionally need the Roadmaster # RM-152-98146-7 Universal wiring kit, and the Brake Buddy Supplemental Braking System...
    view full answer...
  • Blue Ox Tow Bar And Demco Base Plate Compatibility
    I spoke with Demco and because you have an older model you'll need the # DM9523034 adapters to connect your # BX7460P tow bar to your # DM9517321 base plates. You'll unhook the tabs from the tow bar arms and bolt the adapters in their place and then can bolt the tab end into your base plates.
    view full answer...
  • Recommended Parts to Flat Tow a 2015 Chevrolet Silverado 2500 HD Duramax
    Out of the wiring kits available for your 2015 Chevrolet 2500 HD I recommend the # RM-15267. The kit includes a 6-way connector that will be installed at the front of the truck. Then there's an 8 foot cord that connects the 6-way and a 7-way on the back of your RV. It also includes the diodes and wiring to install on the Chevy. I recommend the Exali-Bar II tow bar, part # DM9511013 with base plate kit # DM9517321. This way they'll connect right up to each other and you won't have to...
    view full answer...
  • Which Demco Classic Base Plate Kit Fits 2012 GMC Sierra 3500
    Yes the Demco Classic Base Plate kit part # DM9518200 that you referenced fits the 1500 models but for a kit that fits the 3500 you'd want the part # DM9517321.
    view full answer...
  • Tow Bar and Base Plates for 2011 Ram 3500 and 2011 GMC Sierra 3500
    We have a lot of great solutions for towing your 2011 Ram 3500 and your 2011 GMC Sierra 3500. For your tow bar, I recommend the Roadmaster BlackHawk 2 All Terrain Non-Binding Tow Bar # RM-422. This tow bar can tow up to 10,000 lbs and features non-binding crossbars to make disconnecting easier. Now for the base plates. For your Ram, I recommend the Roadmaster # RM-293-3. For your Sierra, my recommendation depends on whether you have tow hooks or not. If you do, I recommend the Roadmaster...
    view full answer...
  • Flat Towing Parts For A 2011 Chevy 2500 Behind A 2018 Jayco 25 R E450
    Yes you can flat tow a 2011 Chevy 2500 with the Jayco 25 R E450. To do so you will need the following parts: Tow bar, Base plate kit, Safety cable set, Tow bar wiring and supplemental braking system. I recommend the Demco Excali-Bar III Non-Binding Tow Bar - # DM9511013 which includes safety cables so that's one less purchase to make here. Each arm attaches and detaches from base plates with 2 easy-to-access pins and adjustable-width arms fit a wide range of base plates. This saves...
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Manda E
Updated by:
Manda E
Employee Jonathan Y
Video by:
Jonathan Y
Employee Conner L
Test Fit:
Conner L
Employee Kristina F
Written by:
Kristina F

At etrailer 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.