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Blue Ox Tow Bar to Roadmaster EZ5, MS, and MX Base Plates Adapter Brackets

Blue Ox Tow Bar to Roadmaster EZ5, MS, and MX Base Plates Adapter Brackets

Item # BX88185
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Our Price: $142.80
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Shipping Weight: 3 lbs
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Use your Blue Ox tow bar with Roadmaster base plates. Works with EZ5, MS, and MX series base plates. Call 800-298-1624 to order Blue Ox accessories and parts part number BX88185 or order online at etrailer.com. Free expert support on all Blue Ox products. Guaranteed Lowest Price and Fastest Shipping for Blue Ox Tow Bar to Roadmaster EZ5, MS, and MX Base Plates Adapter Brackets. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (18)
  • Q & A (64)
  • Videos (2)
  • Photos
  • Why etrailer?

Blue Ox Accessories and Parts - BX88185

  • Base Plates
  • Tow Bar
  • Adapters
  • Blue Ox
  • Blue Ox to Roadmaster

Use your Blue Ox tow bar with Roadmaster base plates. Works with EZ5, MS, and MX series base plates.


  • Fits Roadmaster base plates
    • EZ5, MS, and MX base-plate models
  • Works with Blue Ox motor-home-mounted tow bars
    • Can also be used on the Blue Ox Acclaim car-mounted tow bar (BX4330) if the space between your base plates is 23" to 30"
  • Simple installation
    • Brackets replace lug-style brackets on arms of tow bars
    • Use RM-910029 pins (sold separately) as the pins from your tow bar are too small
  • Includes 2 adapter brackets
  • Made in the USA
  • 1-Year warranty

BX88185 Blue Ox Tow Bar to Roadmaster Bracket Adapter - No Crossbar

Installation Details BX88185 Installation instructions

Video of Blue Ox Tow Bar to Roadmaster EZ5, MS, and MX Base Plates Adapter Brackets

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

Video Transcript for Review of Blue Ox Base Plates - BX88185

Today we're going to take a look at the Blue Ox tow bar, the Roadmaster EZ5, MS, and MX base plate adapter brackets. Now this adapter kit is designed to adapt to Blue Ox tow bar to fit the Roadmaster direct connect base plates, which are equipped with the cross bar already, and the dirt Roadmaster direct connect base plates are the model numbers, EZ5, MS, and MX base plate models. This will work with the Blue Ox motor home mounted tow bars. Now it can also be used with the Blue Ox acclaimed car mounted tow bar, which is part number BX4330, if the space between your base plates is 23 inches to 30 inches.Now this is a very simple installation. These brackets will replace the lug style brackets on the arms of your tow bars, and you do need to use the .. it is required to use the RM-910029 pins, which we do sell separately on our website, as the pins that are on your tow bar already will be too small, and those pins are list ...

that we do sell separately, are listed on this product page as a related product.Now this kit will include everything shown here, the two adapter brackets, the two bolts, the two lock nuts, four large washers, and eight small washers, nice set of instructions, and this part is made in the USA. That should do it for the review on the Blue Ox tow bar to Roadmaster EZ5, MS and MX base plate adapter brackets.

Customer Reviews

Blue Ox Tow Bar to Roadmaster EZ5, MS, and MX Base Plates Adapter Brackets - BX88185

Average Customer Rating:  4.9 out of 5 stars   (18 Customer Reviews)

Use your Blue Ox tow bar with Roadmaster base plates. Works with EZ5, MS, and MX series base plates.

- BX88185

Dealing with etrailer was good experience that includes timely, good prices, good salesperson and great installation. Thanks, when I need something else etrailer will be my first choice. I tell everyone to go to etrailer but most have never of etrailer.

- BX88185

The kit was easy to install and simple to hook up to my jeep awesome product thanks

- BX88185

All the products I ordered from etrailer,fit and worked excellent for me to be able to flat tow my 2015 Chevrolet Colorado behind our motorhome. I live in Canada and fast delivery on the products I ordered. I will order from etrailer again

- BX88185

Needed this adapter to connect my blue ox tow bar to the roadmaster base plate on the car. The adapter was in stock and shipped quickly to meet my needs.

- BX88185

I JUST GOT HOME AND FOUND MY ORDER FROM ETRAILER WAITING FOR ME ON MY PORCH. I have not as of yet tried to install it, but everything I will need for installation was included. I will comment later on as to how the installation went. Thank you etrailer for your fast response and delivery.

- BX88185

Etrailer originally told me that they could not help me with an adapter I needed. They did not give up the following day Bob the shop supervisor called me and said he had taken another look and had figured out what I needed. They shipped the part the same day. Great service. I will be a repeat customer.

- BX88185

I called, and got the right information. Later on that day I ordered online and everything came on time. The mount, and the wiring kit fit exactly as expected. I bought several items over the years and I highly recommend etrailer.

- BX88185

Great product. Worked perfect. Didn't realize that it didn't come with the pins (my fault) and the pins I had were too small. Had to order correct pins and pay additional shipping. The correct pins are 3/4" diameter so if yours are smaller than that, order the right ones with the kit to avoid additional shipping charges.....just FYI.

- BX88185

This product saved me time and money by not having to make an adaptor from my Blue Ox tow bar to Roadmaster base.

- BX88185

Excellent Quality. etrailer Lisa D the best customer service. God bless, Carlos

- BX88185

Everything fits great. Thanks

how wide are they ?
-- comment by: mark d - 10/12/2013

I spoke with my contact over at Blue Ox and they come in right about 2 inches wide.

-- Etrailer Expert Patrick B - 10/18/2013

- BX88185

Product works great and Angie K is an absolutely wonderful person to work with, very knowledgeable and keeps up with your order and keeps you informed. Again it was a pleasure working with a knowledgeable person . Thanks

- BX88185

Very good -Service excellent !

- BX88185

Great website, easy to use and you have everything I need.

- BX88185

Arrived Quickly and does the job!

- BX88185

Delivered as ordered.

- BX88185

Came on time fit fine

- BX88185

thank you got it on time and well call again thanks


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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeff D
Installed by:
Jeff D
Employee Chris R
Video Edited:
Chris R
Employee Sarah W
Updated by:
Sarah W
Employee Jonathan Y
Video by:
Jonathan Y
Employee Robert C
Test Fit:
Robert C

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