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Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers

Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers

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Go super sleek with this low-profile conversion kit that lets you mount your FatCat or FatCat EVO to T-slotted crossbars. Quick and easy installation with included T-Bolts and low-profile spacers. 1-636-306-4830 to order Yakima accessories and parts part number Y03098 or order online at Free expert support on all Yakima products. Guaranteed Lowest Price and Fastest Shipping for Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers. Accessories and Parts reviews from real customers.
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Yakima Accessories and Parts

  • Ski and Snowboard Racks
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  • Yakima

Go super sleek with this low-profile conversion kit that lets you mount your FatCat or FatCat EVO to T-slotted crossbars. Quick and easy installation with included T-Bolts and low-profile spacers.


  • Custom-designed for Yakima FatCat and FatCat EVO ski and snowboard carriers
  • Quick and easy installation
  • Includes slide-in T-Bolts and low-profile spacers


  • Application: Yakima JetStream, FlushBar, RailBar, and most other t-slot style crossbars
  • Dimensions: 2" tall x 1/4" wide x 1/4" long
  • Weight: 4.8 oz
  • Quantity: 4 spacers and 4 bolts
  • Limited lifetime warranty

8003098 Yakima SmarT-Slot Kit 2 for FatCat or FatCat EVO Ski and Snowboard Carriers

Item # Y03098

Customer Reviews

Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers - Y03098

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Go super sleek with this low-profile conversion kit that lets you mount your FatCat or FatCat EVO to T-slotted crossbars. Quick and easy installation with included T-Bolts and low-profile spacers.


With the durability of the Yakima accessories the ability to take advantage of the t-slot system and retro fit my big ski racks that had the wrap around clamps makes swapping on and off ski racks a breeze. Like everything outdoor related during the pandemic these were on back order everywhere. Yakima told me to order from etrailer because they restock their resellers before their own parts warehouse. Customer service and communication on order status was prompt and often. The ability to now slide on the ski racks through the t-slots on the ends instead of the multi step oval screw down clamps that came with my fat cat 6 takes all the hassle out of putting racks on for a day in the mountains, getting home and sliding them off in 2 minutes so I’m not keeping them on all season.



See what our Experts say about this Yakima Accessories and Parts

  • Differences Between the SmarT-Slot and Replacement FatCat Mounting Kit for Yakima Ski Racks
    Between these two parts, the SmarT-Slot, part # Y03098 and the Replacement Mount kit, part # 8860085, the primary difference is the height at which they sit. The FatCat 6 will operate normally. Both of these kits will allow you to channel mount the FatCat 6 on your aero style crossbars. The Replacement Mount kit, part # 8860085 is likely the better choice if you have higher bindings as it sits taller than the SmarT-Slot kit, allowing you to clear the roof with the taller bindings.
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  • Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat 4
    Yes, you can use the SmarT-Slot Kit 2 # Y03098 to attach your Yakima FatCat 4 like part # Y03095 to your flush mounted AeroBlade crossbar roof rack. It's a very useful kit to have since the FatCat4 version is known for having short straps that don't fit around certain bars. A tip while using this kit though it to make sure you evenly tighten down on the T-slot on each side of the crossbar.
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  • How Much Height Will I Lose with the Aero Crossbar SmarT-Slot Kit 2
    The distance from the top of the crossbar to the top of the carrier while using the mounts that are included with the Yakima FatCat EVO like part # Y03095 is 4-5/8". This same distance while using the Aero Crossbar SmarT-Slot Kit 2 part # Y03098 is 3-1/2" therefore it will become about 1-1/8" shorter.
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  • What Upgrades Were Made to the Yakima Fat Cat EVO over Previous Generation
    There are a few noteworthy improvements for the FatCat6 EVO, part # Y03096 over the previous version of the FatCat 6. First being Yakima's newer rubber coated steel strap mounting system. This is an extremely quick to mount system that locks using the integrated Same Key System. It fits AeroBars sized up to 3.5 inches wide by 1.75 inches tall, and didn't fit those in the previous version. The EVO also includes additional adapters for round and square bars, letting it attach to a wide...
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  • Distance Between Mounting Location on Yakima Fatcat 4 and Fatcat 4 EVO
    The Yakima FatCat EVO 4 Ski and Snowboard Carrier - Locking - 4 Skis or 2 Boards - Black # Y03095 has mounting holes that are inches apart. I reached out to my tech contact at Yakima and he said the Old FatCat 4 mounting holes are 12 inches on center and the newer FatCat 4 EVO will be longer at about 16 inches. Once you account for the width of the Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers # Y03098 it will be another 1/2 inch on each side for the T-slot...
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  • Ski Rack for 2020 BMW X3 With Factory Roof Rack
    We do have an option for you but I checked with both Thule and Yakima and neither of their ski racks will clamp directly around the wider 4 inch crossbars of your 2020 BMW X3's factory roof rack. However, based on my research it looks like your BMW's rack does have a T-slot (channel) at the top of the bars. What I recommend is the Yakima FatCat EVO 6 Ski and Snowboard Carrier - Locking - 6 Skis or 4 Boards # Y03096 with the Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard...
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  • Can A T-Slot Adapter Be Used With The Yakima Powderhound 4
    The Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers # Y03098 is not compatible with your Yakima Powderhound 4. This has been confirmed by Yakima that there is no adapter for the Powderhound 4, and the only mounting hardware available is the Replacement Mounting Hardware for Yakima PowderHound, Big PowderHound or FreshSesh # Y8860040 which attaches to the carrier, and wraps around the crossbars.
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  • What Is The Difference Between T-Slot Mounting Hardware 8860085 And Y03098
    Yes, the Replacement T-Slot Mounting Hardware for Yakima FatCat and Whispbar Ski Carriers # 8860085 you mention will work with your Yakima Fat Cat 6 Locking Rooftop Ski and Snowboard Carrier # Y03088 (INACTIVE). The difference between # 8860085 and # Y03098 is the primary height at which they sit. The Yakima FatCat 6 will still operate normally, and will all you to channel mount your FatCat 6 into your aero style crossbars like the Yakima JetStream Crossbars # Y00425. For a low profile...
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  • Will Yakima Aero Crossbar SmarT-Slot Kit Bolts # Y03098 Fit Thule M6 Wing Nut
    I actually went out to our warehouse to test a bolt from the Yakima Aero Crossbar SmarT-Slot Kit # Y03098 with an M6 wing nut from Thule (part # 753-0783). The Yakima bolt threaded into the nut perfectly which means it is indeed an M6 bolt. They will work just fine with a Thule M6 wing nut like what you have.
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  • Can I use Yakima SmarT-Slot Kit in Thule Xsporter Crossbar
    Yes, you can use the the SmarT-Slot Kit 2 part # Y03098 to mount your FatCat EVO part # Y03096 to the T-slots in the Thule Xsporter crossbars. I went to the warehouse and tested the Yakima bolt in the T-slots of a Thule Xsporter bar and it fit perfectly. You can use the Yakima SmarT-kit 2 in any Thule Xsporter bar T-slot. The FatCat EVO part # Y03095 fits crossbars up to 3-7/16 inches wide by 1-1/2 inches tall. The Crossbars of the Thule Xsporter ladder rack are 3-1/3" inches wide by...
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  • Recommended Yakima Ski and Snowboard Rack With T-Slot Channel Mounts
    The Yakima FatCat EVO 6 Locking Rooftop Ski and Snowboard Carrier # Y03096, or the Yakima FatCat EVO 4 Locking Rooftop Ski and Snowboard Carrier # Y03095, will fit directly to the T-Slot of your roof rack but only with the adapting hardware kit. The necessary hardware can be found in the Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers # Y03098. I spoke with my contact at Yakima and confirmed this hardware is what you will need to mount the FatCat to your crossbar's...
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  • Is the Yakima Aero Crossbar SmarT-Slot Kit 2 Compatible w/ Yakima HD Crossbars and the FatCat EVO 4
    Yes, the Aero Crossbar SmarT-Slot Kit 2 for Yakima FatCat Ski and Snowboard Carriers # Y03098 will work with Yakima HD Crossbars Aero Crossbars # Y01157 and the Yakima FatCat EVO4 # Y03095. The SmarT-slot kit is designed to mount your FatCat EVO 4 to T-slotted crossbars, the Yakima HD Crossbars are T-slotted crossbars so this is exactly what you need.
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  • Using the Yakima FatCat Evo 6 with Rhino-Rack RSP and the Yakima SmarT Kit
    The FatCat EVO 6, part # Y03096 can use Yakima's SmarT Kit, part # Y03098 to fit to your Rhino Rack RVP's, part # RRRVP27 T-Channel slot. I recommend tightening the T-Screws as tight as possible to make sure that the carrier seats onto the bars.
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  • Recommended Ski and Snowboard Carrier for 2016 Jeep Patriot
    The Thule SnowPack Ski & Snowboard Carrier - 6 Skis or 4 Boards # TH7326 will fit on a 2016 Jeep Patriot but you may have issues with taller bindings. If you are concerned about fit, I recommend you look at the Yakima FatCat EVO 6 Locking Rooftop Ski and Snowboard Carrier - 6 Skis or 4 Boards - Mirror Black # Y03096 as an alternative. It has the integrated SkiLift to provide clearance for tall bindings. It is also able to be used with T-slots if you add the Aero Crossbar SmarT-Slot Kit...
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  • Best Yakima Roof Rack For 2020 Jeep Grand Cherokee With Black and Chrome Track
    I recommend the Yakima JetStream Crossbars # Y00425 with the SkyLine Towers part # Y00148 and landing pads for the towers part # Y00244. The JetStream and CoreBar are very similar with a 165 lb capacity and aerodynamic design to cut down on wind noise. However, The JetStream bars offer the T-slot for accessories with a rubber weather strip that does not require trimming like it did in the past. I highly recommend using the JetStream bars with the T-Slot and getting the Yakima FatCat Ski...
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  • How To Mount The Yakima HD Cross Bars On A 2018 Subaru Outback Wagon
    To add the Yakima HD cross bars to the existing roof rails on your 2018 Subaru Outback wagon. I don't suggest making holes in the roof rails. We cannot provide the information to install them in that manner. I recommend using the HD Bar SL Adapter for Yakima BaseLine, SkyLine, TimberLine, and RidgeLine Towers - Qty 4 Item # Y03541 the Landing Pad 15 for Yakima Control Towers - Qty 4 Item # Y00241 and the SkyLine Towers for Yakima Crossbars - Fixed Mounting Points, Flush Rails, and Track...
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  • Recommended Accessory Bar for Rhino-Rack Pioneer Platform on Jeep Wrangler
    With your Rhino-Rack Pioneer Platform Rack with Backbone Mounting System, the accessory bar you may want is the Rhino-Rack Accessory Bars for Pioneer Platform Rack - 54" Long - Heavy-Duty Bars - Qty 2 # RR43120B. If you are concerned about the angle of install, you can use the the Roller Accessory for Rhino-Rack Pioneer Platform Racks - 50" Long # RR43131 to roll your snowboards into place. Your Yakima snowboard carrier will be able to install right on your platform using the Aero...
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  • Best Roof Rack System for a 2016 Mazda CX-5 with Naked Roof for Skis and Fishing Poles
    The best option for the 2016 Mazda CX-5 is the Yakima BaseLine kit. This kit has the ability to adjust the pitch and angle of its foot packs and bars to create a more level platform than other setups. This kit consists of: Yakima JetStream Crossbars, 60 inches, part # Y00426 Yakima BaseLine Towers, part # Y00146 Yakima BaseClip 130, part # Y06130 Yakima BaseClip 132, part # Y06132 Be sure to order both BaseClip kits, as one is for the front of the vehicle and one for the rear of the...
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  • Roof Rack and Ski Carrier for a 2014 Lexus RX 350
    For your 2014 Lexus RX 350 I recommend keeping things lower profile with your roof rack and ski carrier. Yakima's RailBar kit, part # Y00434-2 for Silver and part # Y00449-2 for black, provide a low profile, easy to install kit to add roof bars with a factory look onto your Lexus RX 350. These bars are easy and quick to install and include channel mounts, important to keeping a low profile on the vehicle. One of the best features of this rack is that the top channel's rubber inset actually...
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  • Yakima High Speed Roof Bike Rack with SmarT-slot Mounting Kit and Thule AeroBlade Compatibility
    The Yakima HighSpeed Roof Bike Rack - Fork Mount - Clamp On # Y02115 will work well with the SmarT-Slot Mounting Kit for Yakima HighSpeed and HighRoad Roof Bike Racks # Y02122 to mount to any crossbars with the top channel. The Thule Aero Blade crossbars like # TH7603B-TH7603B with fit your 2017 BMW X5 but you will also need the discontinued fit kit 4023 for that specific fit. You may want to consider a different option if you don't already have that roof rack. I've linked the page to...
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Info for this part was:

Employee Daron K
Edited by:
Daron K
Employee Jonathan S
Written by:
Jonathan S

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