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Universal MightyMounts for Yakima Roof Mounted Accessories

Universal MightyMounts for Yakima Roof Mounted Accessories

Item # Y03590
Our Price: $58.95
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Universal MightyMounts are a simple and economical way to adapt most Yakima carriers to almost any factory roof-rack crossbars. MightyMounts are specifically designed to fit popular factory racks and install easily with no tools. 1-800-940-8924 to order Yakima accessories and parts part number Y03590 or order online at Free expert support on all Yakima products. Great prices and Fastest Shipping for Universal MightyMounts for Yakima Roof Mounted Accessories. Accessories and Parts reviews from real customers.
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  • Reviews (57)
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Yakima Accessories and Parts - Y03590

  • Roof Rack
  • Adapters
  • Yakima
  • MightyMounts

Universal MightyMounts are a simple and economical way to adapt most Yakima carriers to almost any factory roof-rack crossbars. MightyMounts are specifically designed to fit popular factory racks and install easily with no tools.


  • Adapts most Yakima carriers to almost any factory roof-rack crossbars
  • Installs easily with no tools
  • Includes Dynaflex-padded bails for protection and grip around roof-rack crossbars
    • Bails come in "A" and "B" sizes for different-sized bars
    • Fits popular factory racks with specific design and shape
  • Secures with 4 Accessory Lock Housings and 4 Same Key System (SKS) Cores (sold separately)
    • SKS Cores can be changed out to make all your Yakima locks keyed alike
  • Works on different vehicles with "one size fits all" capability


  • Quantity: 4
  • Application: Round, square or factory roof racks
    • Factory crossbars must not be more than 4" wide or 1-1/2" tall
  • Compatibility: Yakima BasketCase, most Yakima bike mounts, ski mounts and watersport accessories
  • SKS Cores:
    • For enhanced security, install 4 Accessory Lock Housings and 4 SKS Cores to lock carrier to crossbars
  • Lifetime warranty

Note: Universal Mighty-Mounts are not compatible with the Yakima Hullraiser, Anklebiter, Kayak Stacker, or Sidewinder.

8003590 Universal MightyMounts for Yakima Roof Mounted Accessories

Installation Details Y03590 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Universal MightyMounts for Yakima Roof Mounted Accessories - Y03590

Average Customer Rating:  4.8 out of 5 stars   (57 Customer Reviews)

Universal MightyMounts are a simple and economical way to adapt most Yakima carriers to almost any factory roof-rack crossbars. MightyMounts are specifically designed to fit popular factory racks and install easily with no tools.


We decided to try out skiing as a family this year. I haven’t skied in 20 years. These worked perfectly for attaching my circa 2000 era Yakima Powderhounds to Thule Aeroblade cross bars on our minivan. These mounts are pricey, but I’m so glad I didn’t have to buy a new ski rack!

The mounts fit almost flush to the top and bottom of the cross bars and there’s no play when properly tightened down. The mounts come with two bails, I used the A one and clipped it into the lower hinge on the backbone. YMMV but you want the top and bottom hinges to conform to the shape of your cross bar as best as possible.

If you find the adapter hard to install into the powderhound, start towards the middle of the ski rack, twist them into place, then slide towards the end and line up the holes.

Minus one star because these are so ugly (the opening of the clamp facces forward) and definitely not aerodynamic, but roof rack attachments rarely are. Function is more important here and these universal mighty mounts definitely get a 100% there!

Shipping was fast and good communication from the etrailer folks throughout the whole transaction.


It is not etrailer's issue but Yakima in not being more explicit as to what racks this works on. Also Yakima not manufacturing mounts for J Saddles


Super easy to attach and set up. Perfect for for my 2020 Subaru Outback crossbars.


Worked great for attaching my vintage Yakama Lockjaw to the new aero bars on my 2018 Subaru Impreza.


Perfect adapters for my 2018 Toyota RAV4! Installed Hullyrollers and Mako Saddles on them. Worked great on the Toyota factory racks.


I have oval Rhino cross rails on my car. I have an old Yakima standup bike carrier. This product brings the two together perfectly.



Still working great.


I had old Yakima Powerhounds mounted on round bars, but need to mount them on the factory bars of my new Crosstrek. These Universal MightyMounts saved me from buying a new ski add-on. Only drawback I can see is the system doesn’t lock to the car like when I had them mounted to my round bars. However, I usually view the rack as a means of transport rather than storage.’s customer service was solid. I made the purchase around April, but due to the part being back ordered, did not revive them until August. emailed me updates about once a month until I received my order.


It took a while to arrive, but it was exactly what I needed to attach my existing Yakima rack to my new car. It is tough to find the right part sometimes, but I found it here!


The conversion from round to flat cross bars went great.


Well made and work perfectly


very good for multiple style crossbars
are plastic but seem well made
i am using them on Hully Rollers and Saddles which required
some ingenuity to make them work but in the end work well

ETrailers were honest about delay is supplu chain
Having said that there time estimate and delivery were spot on
i am ordering a second set for use with my second kayak


I just bought a tadpole trike and I wanted to place it on my factory installed roof rack for my 2016 Toyota RAV 4. James A. was fantastic on trying to make this work. He came up with using the Yakima Boa wheel trays and the Yakima Universal Mighty Mounts. Only 2 of each was required due the length of the trike. The optional "B" lower bracket was needed. The set up is working very well. Thanks James


The Universal Mighty Mount Y03590 is the only adapter that fits the 2017 Subaru Outback factory crossbars. I learned that after ordering the 39H that was too big. Thank you,Greg, for helping me return the 39H adapters and order the Universal adapters.



This product was awesome in allowing me to mount an older tandem bike rack onto the factory Audi Q7 roof rack. Held our road tandem with no issues during 1000 miles at highway speeds (I.e. 80 mph). Slight concern that rubber pads wilm go missing over time.


I searched the internet trying to understand what I needed to convert my Yakima Hullraisers and Lockjaw to work with my new Subaru Outback. My old set up worked on round Yakima crossbars. The internet was not clear at all about whether there was a workable conversion to the built in crossbars of the Outback. Finally I etrailer and talked to Jordan. He contacted Yakima himself. He identified exactly the parts I needed, and then called me back. Very old school and very effectively. Everything worked as it should.

A quick note, the Hullraiser conversion kit doesn't include any instructions -- Yakima gives me more engineering credit than I deserve. For those who might be doing the same conversion, get the instruction manual for the Hullraiser Aero which shows how it is done.

Thanks Jordan


I needed to adapt hundreds of dollars worth of Yakima Kayak and Ski carriers to the Aero Rhino Rack I bought from
Ricky researched the issue, contacted Yakima, confirmed the correct adapters and I had them in less than a week.

Fantastic customer support - these guys came through for me.



I was amazed at how quick I received my order. The mounts I ordered were exactly what I was looking for to mount some Yakima bicycle roof racks I purchased used on craigslist. I thought I wasted my money on the racks when there was no mounts with them. I went to REI and was told I was going to need a whole different system that would cost over $300. The mounts from etrailer I bought, REI had no idea they were available. I plan on buying another set soon.


Brackets for older Yakima bike rack were needed for a different roof rack on another car. The eTrailer web site was easy to navigate and lead me to exactly what I needed. Received the shipment quickly.


I purchase some Yakima universal Mighty mounts to mount my bike rack to my roof rack. I purchased them from etrailer. Great transaction, great communication and emailed me with the mounting instructions when the package was delivered.


I was very happy to find adapters which fit my Yakima accessories, specifically in this case a Kayak rack, to a BMW rack which I just picked up. Haven't install them yet but it looks like everything needed is included and her order and delivery were very smooth.


Product is as presented. Etrailer did great job identifying what I need and getting it to be timely (earlier than expected).


Work great!


Great product and wonderful doing business with



After one year of using the Yakima brackets, the product is still great.


Just what I need to mount my Yakima hullrisers on my BMW cross bars. Arrived very quickly.


the universal mounts work well
you need
to adapt them to use them with roller mounts
and saddle mounts but that is not difficult
the direcions do no show doing that but essentiallty you have to reverse the
direction of the bolts to make it work

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