Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars - Qty 4
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Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars - Qty 4

Item # Y03539

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Accessories and Parts Y03539 - MightyMounts - Yakima
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These easy-to-use adapters let you mount round and square bar carriers and accessories on Yakima CoreBar and JetStream crossbars. Brackets use your accessory's existing hardware - no tools required. Call 800-298-8924 to order Yakima accessories and parts part number Y03539 or order online at etrailer.com. Free expert support on all Yakima products. Guaranteed Lowest Price and Fastest Shipping for Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars - Qty 4. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (4)
  • Q & A (19)
  • Photos
  • Why etrailer?

Yakima Accessories and Parts - Y03539

  • Roof Rack
  • Adapters
  • MightyMounts
  • Yakima

These easy-to-use adapters let you mount round and square bar carriers and accessories on Yakima CoreBar and JetStream crossbars. Brackets use your accessory's existing hardware - no tools required.


Features:

  • Adapters let you mount round and square bar accessories on your Yakima CoreBar and JetStream crossbars
  • Easy, tool-free installation - adapters use existing accessory hardware
    • Replaces your accessory's existing mounting brackets
  • Durable nylon construction


Specs:

  • Application: Yakima HighRoller (Y02091), King Cobra (Y02084), and Raptor (Y02085) bike racks; WheelFork (Y02067) wheel carrier; HullRaiser (Y04035), Kayak Stacker (Y04036), Mako Saddles (Y04037), HullyRollers (Y04035), and LandShark (Y04030) kayak carriers; and BasketCase (Y07012) cargo basket
  • Maximum crossbar dimensions: 3-1/8" wide x 1" tall
  • Quantity: 4 mounting brackets
  • Limited lifetime warranty


8003539 Yakima Mighty Mount 39H Accessory Adapter for CoreBar and JetStream Crossbars - Qty 4



Y03539 Installation InstructionsInstallation Details Y03539 Installation instructions




Customer Reviews

Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars - Qty 4 - Y03539

Average Customer Rating:  5.0 out of 5 stars   (4 Customer Reviews)

These easy-to-use adapters let you mount round and square bar carriers and accessories on Yakima CoreBar and JetStream crossbars. Brackets use your accessory's existing hardware - no tools required.

- Y03539
by:

The mighty mounts fir perfectly on my rack system... excellent quality... speedy shipping as well. Looking forward to mounting my kayak system before summer. 638241



- Y03539
by:

Easy, solid conversion that allows us to continue using all of our old carriers on our new rack. Perfect for kayak cradles. 637328



- Y03539
by:

Excellent shipping and tracking coordination. Product delivered as represented and performs as expected. 561306



- Y03539
by:

Shipping was extremely quick and packaged well. Product works great on crossbars. 558585


4
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Ask the Experts about this Yakima Accessories and Parts

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  • Will Yakima 39H Mighty Mounts fit on Rola Aero Bars on 2018 Jeep Grand Cherokee?
  • On your 2018 Jeep Grand Cherokee with black and chrome roof rails the Rola Sport GTX Series Roof Rack # 59967 or the Rola APE Series Roof Rack # 59966 are confirmed to fit. The Sport GTX has a factory look where the APE has an aftermarket look. The crossbars in both options are 3-1/8" wide x 1" tall so the Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars - Qty 4 # Y03539 will fit and allow you to use your older Yakima ski rack. I've attached photos to allow...
    view full answer...

  • Bike and Kayak Carrier Options for a 2019 Subaru Crosstrek
  • I contacted Yakima who instead recommended the Universal MightyMounts for Yakima Roof Mounted Accessories # Y03590 to fit your Mako saddles to the factory Aero bars on your 2019 Subaru Crosstrek. I also contacted Yakima regarding their ShowBoat 66 Slide-Out Rear Load Assist Kayak Carrier # Y04068 and they were confident this rack will provide clearance of your spoiler and will work for you. My recommendation is a side loading carrier as an attractive alternative for hatchbacks,...
    view full answer...

  • Replacement Mounting Hardware for a Yakima Rooftop Cargo Case
  • This will depend on the specific model of Yakima cargo box and crossbars you have. If you have a Skybox or Rocketbox branded model, you'll need to figure out which year the box was made. If you have a RocketBox that was manufactured between 2005 and 2011, you'll need part # Y8870084. This will replace each mounting clamp individually. This clamp is compatible with most crossbars on the market. If you have a SkyBox, or your carrier is a Rocketbox 16 model, you'll need part # Y90135....
    view full answer...

  • Will Yakima MightyMounts Work on Rhino Rack Vortex Aero Crossbars?
  • If you have the Yakima Universal MightyMount Adapters, part # Y03590, you are in good shape. The Universal MightyMounts will work with all aero style crossbars that are no more than 4 inches wide or 1-1/2 inches tall. The Vortex bars are just 3-1/8 inches wide and 1-3/16 inches tall, so they will be a good fit. If you have the Yakima MightyMount 34H, part # Y03534 or the 39H, part # Y03539, you will need to replace them. These are specifically contoured for smaller factory aero bars...
    view full answer...

  • Mounting Yakima Hully Roller and Mako Saddle on 2005 Toyota Highlander
  • We have a way for you to mount your Hully Roller and Mako Saddle to your 2005 Toyota Highlander, but you will first need to determine which crossbars you have on your roof rack system. If you have factory crossbars you would use the Universal Mighty Mount # Y03590 to attach the accessories to your crossbars. If you already have the raised factory side rails, but no crossbar system I recommend going with the Yakima Roof Rack # Y00421 and # Y00147 which has the Timberline Towers and 50"...
    view full answer...

  • Adapter Kit to Mount HullRaiser Kayak Carrier Y04035 on Yakima JetStream Crossbars
  • The adapter you need to mount your HullRaiser kayak carrier on your Yakima JetStream roof crossbars is kit # Y03539. The adapter # Y8860031 that you referenced is for use with factory crossbars.
    view full answer...

  • Dimensions of Yakima MightyMounts 39H and Fitment to Mopar Roof Bars
  • I was able to go out to our warehouse and measure the Yakima 39H adapter # Y03539 for you. This adapter will fit around crossbars that measure 1 inch tall by 2-3/4 inches wide. If your Mopar bars are within these measurements then these adapters could work for you. If you could tell me the year, make, model and the dimensions of your crossbars; I would be more than happy to help you find a roof bike rack that can accommodate your needs. I have linked a couple pictures of the adapter's...
    view full answer...

  • Yakima MightyMounts that Will Fit on Thule AeroBlade Roof Rack Crossbars
  • Yakima Mighty Mount 39H # Y03539 are designed specifically for Yakima Core and JetStream crossbars. For the Thule AeroBlade crossbars the best option is the universal MightyMounts # Y03590.
    view full answer...

  • Yakima MightyMount Recommendation that Fits Bars that are Near 3/4 inch Thick and 2.9 inch Wide
  • The Yakima MightyMount 39H # Y03539 fits crossbars that are up to 1 inch tall and 3-1/8 inch wide. This would probably be your best option but since I don't know what bars you have it's harder for me to say.
    view full answer...

  • Recommended Yakima Mighty Mount Fit for Rhino-Rack Sport Aero Crossbars
  • The Rhino-Rack Roof Rack System w/ 2 Sportz Crossbars - Fixed Mount - Black - 44" Long # Y05-460 has aero bars that are 3-1/8" wide x 1-1/4" tall. For this fit you will need the Universal MightyMounts for Yakima Roof Mounted Accessories # Y03590. If you want to add a lock to those, I recommend the Yakima Accessory Lock Housing - Same Key System (SKS) Compatible # Y07220 and lock cylinder # Y07202.
    view full answer...

  • Yakima Mighty Mounts Compatibility with Rola Haul-Your-Might T3 # 59799
  • The Rola Haul-Your-Might T3 Truck Bed Ladder Rack # 59799 has load bars that are 65-1/16" long x 3-1/16" wide x 1" tall. The Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars - Qty 4 # Y03539 will fit on those crossbars.
    view full answer...

  • Yakima MightyMounts for Malone AirFlow 2 Roof Rack Crossbars
  • You will need to use the Universal MightyMounts # Y03590. They will crossbars that are up to 4 inches wide and up to 1-1/2 inches tall. The AirFlow 2 bars are 3 inches wide and 1 inch tall so they are within the range accepted by the Universal MightyMounts. The 39H model, # Y03539, were designed specifically for the Yakima CoreBar and JetStream crossbars which have a unique shape so other bars will not fit properly.
    view full answer...

  • Yakima Mighty Mount Compatibility With Factory Crossbars On 2007 Honda Odyssey
  • The Universal MightyMounts for Yakima Roof Mounted Accessories # Y03590 will fit on your 2007 Honda Odyssey EX OEM crossbars as long as they are not more than 4 inches wide or 1-1/2 inches tall. The Yakima 39H adapter # Y03539 will fit around crossbars that measure 1 inch tall by 2-3/4 inches wide. If your factory bars are within these measurements then these adapters could work for you.
    view full answer...

  • Yakima Corebars Compatiblility With Yakima Snowboard/Ski Rack
  • There is an option for a Yakima Ski and Snowboard Carriers that is compatible with Corebars without any adapter needed. The Yakima FatCat EVO 6 Locking Rooftop Ski and Snowboard Carrier - 6 Skis or 4 Boards # Y03096 is designed to fit all the various styles of crossbars including the Yakima CoreBar Crossbars like # Y00421 without adapters needed.
    view full answer...

  • Thule Roof Rack Adapter fro AeroBlade Crossbars
  • If you do not want to use the Yakima Universal Mighty Mount kit # Y03590 on your Thule AeroBlade cross bars you might prefer the Thule Ride-On Adapter # TH532 which fits on roof rack bars up to 3-1/2-inches wide x 1-1/2-inches tall. Since AeroBlade bars measure 3-1/8 wide x 1-1/8 tall the Ride-On adapter will fit. The adapter then provides basic square bars that will accept a wide range of rack-mount bike carriers so long as they fit square bars.
    view full answer...

  • Adapting Yakima Land Shark Cradles To Yakima JetStream Bars
  • I do have an option for you but I contacted Yakima and the Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars part # Y03539 are designed specifically for Yakima CoreBar and JetStream bars so they will not fit your OEM 3/4" thick bars. The Universal MightyMounts for Yakima Roof Mounted Accessories part # Y03590 will fit factory cross bars to adapt your accessory to the bars however, there are some Yakima accessories that are not compatible. I would need to...
    view full answer...

  • Will the Thule Compass Kayak and SUP Carrier Work with Yakima CoreBar Crossbars
  • The Mighty Mount 39H Accessory Adapter part # Y03539 is designed to allow for rooftop mounted accessories that use round or square crossbars to be used with the Yakima CoreBar and JetStream aero crossbars. The Thule Compass Kayak and SUP Carrier part # TH890000 is not designed specifically for round or square crossbars as it will fit aero crossbars too just like the Yakima CoreBar. Therefore, the Mighty Mount 39H Accessory Adapter should not be needed to fit the Thule Compass Kayak and...
    view full answer...

  • MightyMount Recommendation to Install Yakima High Roller on 2015 Subaru Outback Factory Crossbars
  • I checked with Yakima and for your 2015 Subaru Outback with factory crossbars the recommended Yakima MightyMount needed to install the High Roller is the part # Y03539 that you referenced.
    view full answer...

  • Compatible MightyMount Adapter for Rola Sport Crossbars and Yakima Mako Saddles
  • The Mighty Mount 39H Accessory Adapter for Yakima CoreBar and JetStream Crossbars # Y03539 will work with your Rola Sport Roof Rack # 59786 because the crossbars are the same dimensions. This will allow you to mount your Yakima Mako Saddles.
    view full answer...


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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Updated by:
Sarah W
Written by:
Daron K

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