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Thule Load Stops for Square Load Bars - Qty 4

Code: TH503

20 reviews

Our Price: $94.95


Product Specs:

Accessories and Parts

Roof Rack

Cargo Control

Thule Load Bars

Load Stops


Add load stops to your Thule square bar crossbars to help secure heavy loads. Integrated tie-down points make it easy to secure lumber, ladders, canoes, or other gear.

Video of Thule Load Stops for Square Load Bars - Qty 4

Customer Satisfaction Score:

Customer Reviews

Thule Load Stops for Square Load Bars - Qty 4 - TH503

Average Customer Rating:  4.9 out of 5 stars   (20 Customer Reviews)

Add load stops to your Thule square bar crossbars to help secure heavy loads. Integrated tie-down points make it easy to secure lumber, ladders, canoes, or other gear.

by: Steve P.04/11/2022

I don’t normally write these reviews, but i really do like They have high quality products that fit and install correctly the first time and their installation videos are the best. In fact, the Toyota dealer i bought my truck from recommended when i wanted to buy a trailer hitch for my Tacoma.

by: 1Wolfpack11/20/2022

Perfect accessory for securing load on Thule square bars

by: Michael 06/19/2020

I needed a set of these so I could carry 10' lengths of 4" PVC on the roof of my Ford Transite Connect van. These are just what I need.
I was happy to see that all I need to do to mount them on the rail is to take the bolt out and slide them down over the cross bar. I thought I was going to have to remove the bar from the roof support and slide the brackets over the end.
I would give them 5 stars if they were a little taller.

by: Michael02/17/2022

Found the discontinued Thule items I needed with etrailer! Fast delivery at the right price. First order, but won't be my last. Great service!
Thank you

by: Kelly 07/23/2022

Competitive prices and fast delivery!

by: GPR10/15/2021

Fits a Thule rectangular bar perfectly. Arrived quickly.

by: Michael04/05/2022

looks like they will do the job!

by: Paul S12/08/2014

Works fine, but doesn't slide very easily along the bars.

Hi Paul, these do fit tightly to the bars. This is to ensure that no matter the size of the load, these will not move and that they will remain secure.
Michael L from - 12/10/2014

by: Michael 05/20/2021

Excellent product...easy to use

by: John02/07/2020

Out of box look like they will do the job. Wanted the canoe kit but no longer available for the square tube and did not want the universal kit for the aero blade rack.

by: Anthony12/18/2014

Good service and good product

by: Jose 08/01/2022

by: Patrick 01/16/2020

The product is great!! Fit is perfect!

by: Ed11/28/2022

by: Tom 11/19/2022

by: Aaron 01/29/2022

by: Bohumil02/18/2023

by: Douglas 12/04/2022

by: Blayne12/09/2017

Fast and quick

by: Michael 03/23/2021


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Universal MightyMounts for Yakima Roof Mounted Accessories

Code: Y03590

44 reviews

Our Price: $58.95


Product Specs:

Accessories and Parts

Roof Rack




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.

Video of Universal MightyMounts for Yakima Roof Mounted Accessories

Customer Satisfaction Score:

Customer Reviews

Universal MightyMounts for Yakima Roof Mounted Accessories - Y03590

Average Customer Rating:  4.8 out of 5 stars   (44 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.

by: Andrew08/13/2022

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.

by: Paul07/19/2022

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.

by: Nicholas 12/25/2022

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

by: AutoJunkie01/07/2023

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.

by: Sean06/24/2018

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

by: Matt 12/15/2022

It’s truly universal, lots of options are included.

by: Mark 07/19/2021

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

by: Mylene12/05/2020

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

by: Cynthia 07/17/2022

Works well with my Subaru factory cross bars.

by: David07/20/2019

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.
David - 07/21/2020

by: Tom E02/08/2017

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

by: Ron H.06/17/2014

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.

by: Bill M10/07/2014

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.


by: John 09/22/2018

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

by: Charles L.08/12/2018

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.


by: John06/22/2020

The products I ordered were shipped promptly and were exactly as ordered. One issue pre-shipment was handled perfectly by customer service. Excellent experience, will return when I need similar items. Thank you.

by: Mark 07/29/2021

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

by: Tom 07/23/2020

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.

by: Great company to deal with 07/29/2018

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.

by: Dave K.06/21/2016

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.

by: Keegan12/17/2012

Great product and wonderful doing business with

After one year of using the Yakima brackets, the product is still great.
Keegan - 06/17/2014

by: Nicholas 09/03/2021

As expected, brand new mighty mounts!

by: Cecelia07/21/2018

It has been hard to find brackets for our square bar equipment to attach to new aero bars. These fit and work great. Thanks also to the product information on the eTrailer we site which allowed us to know these would work.

by: Jack M10/19/2017

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

by: Kyle02/05/2013

I had questions on what i wanted to order. I called up and the people at the call center were very helpful. Later on i ordered the item needed, was updated on the shipping status and delivery was fast. Overall a great e-tailer to work with. Thanks!

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