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Thule Force XT Sport Rooftop Cargo Box - 11 cu ft - Black AeroSkin

Thule Force XT Sport Rooftop Cargo Box - 11 cu ft - Black AeroSkin

Item # TH6356B
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Our Price: $699.95
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Shipping Weight: 35 lbs
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74-3/4 x 24-3/4 x 16-3/4. This aerodynamic, low-profile cargo box holds small bags and carry-on luggage for up to 3 people. Built-in Quick-Grip clamps let you quickly mount the box to your roof rack, and the locking lid opens from both sides. Lowest Prices for the best roof box from Thule. Thule Force XT Sport Rooftop Cargo Box - 11 cu ft - Black AeroSkin part number TH6356B can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (14)
  • Q & A (0)
  • Photos
  • Why etrailer?

Thule Roof Box - TH6356B

  • Aero Bars
  • Factory Bars
  • Square Bars
  • Round Bars
  • Elliptical Bars
  • Small Capacity
  • Thule
  • Medium Length
  • Black
  • Dual Side Access
  • High Profile

74-3/4 x 24-3/4 x 16-3/4. This aerodynamic, low-profile cargo box holds small bags and carry-on luggage for up to 3 people. Built-in Quick-Grip clamps let you quickly mount the box to your roof rack, and the locking lid opens from both sides.


  • Low-profile, roof-mounted cargo box provides enclosed storage for your gear
    • Perfect for groceries, gardening tools, small duffel bags, or carry-on luggage for up to 3 people
    • Great for sedans and SUVs
  • Pre-installed Quick-Grip mounting clamps provide 5-minute installation on your crossbars
    • Simply turn dials to secure mounting clamps to roof rack
    • Integrated PowerClick torque indicator clicks when clamps are properly tightened
  • Aerodynamic shape helps to reduce drag and wind noise
  • Dual-side-opening lid lets you load and unload gear from either side of your vehicle
    • Hand knob on lock makes lid easy to lift and close
  • Oversize SecureLocks ensure that lid is closed and locked
    • Key can only be removed when box is properly closed and locked
    • 2 Thule One-Key System locks included
  • 2 Load straps connect to built-in anchor points on Quick-Grip hardware to secure your gear
  • Rugged ABS plastic construction resists impacts, weather and harsh UV rays
  • Black AeroSkin diamond-texture lid and base looks stylish on your roof
  • Made in the USA


  • Application: round, square, aero, elliptical, and most factory crossbars
  • Maximum crossbar dimensions: 3-1/2" wide x 1-11/16" tall
  • Crossbar spread: 23-5/8" - 36-3/4"
  • Carrying capacity: 11 cu ft
  • Ski/snowboard capacity: 3 - 5 skis or 3-4 snowboards
  • Maximum ski/snowboard length: 174 cm
  • Dimensions:
    • External: 74-3/4" long x 24-3/4" wide x 16-3/4" tall
    • Internal: 70-1/2" long x 20-1/2" wide x 14-3/4" tall
  • Box weight: 32 lbs
  • Limited lifetime warranty

Cargo Box Clearance Diagram

635601 Thule Force XT Sport Roof Mounted Cargo Carrier - 11 cu ft - Black AeroSkin

Replaces Thule TH624 and TH6356B

Customer Reviews

Thule Force XT Sport Rooftop Cargo Box - 11 cu ft - Black AeroSkin - TH6356B

Average Customer Rating:  5.0 out of 5 stars   (14 Customer Reviews)

74-3/4 x 24-3/4 x 16-3/4. This aerodynamic, low-profile cargo box holds small bags and carry-on luggage for up to 3 people. Built-in Quick-Grip clamps let you quickly mount the box to your roof rack, and the locking lid opens from both sides.


Great lightweight car top carrier for our Ford Explorer which has a sunroof---and therefore is not rated to hold a larger and heavier carrier. We already used with a bunch of lightweight camping gear and plan to use with skis.


This is a great car-top carrier. It is light and easy to install and move around. The opening and locking mechanisms also work well. I drove 5 hours with it in the rain and no moisture made it inside. eTrailer was also great when ordering. The freight company lost the first one and eTrailer simply sent me a replacement. Great company to work with.


Exactly what we wanted!!


Delivery was on time as scheduled.

performed as advertised.


Ordered a cargo box for my car it was delivered exactly when it was supposed to on time and in great condition. Excellent communication. Would definitely recommend.


Great service, description was accurate on the website, customer service was excellent. Delivery was quick. The product itself is high quality and perfect for us. Fits our 2014 Honda CRV factory installed crossbar.


Excellent on our Lexus GX 460 2016


Arrived when promised. Much appreciated. Easy to install and quiet at highway speeds.


Great Item, great service


Arrived on time, no damage and delivery driver was great!






See what our Experts say about this Thule Roof Box

  • Will Thule Force XT Sport Cargo Box Fit a 2013 Subaru Outback Wagon with Factory Roof Rack
    I checked with Thule and the Force XT Sport Cargo Box, # TH6356B, is a fit for your 2013 Subaru Outback wagon with factory crossbars that run side to side. There will not be hatch interference. I do not anticipate any overhang issues either though I cannot confirm that since we have not tested this box on a 2013 Outback. You can adjust the feet in the box forward and backward to move the box more forward or backwards on the rail and get it to your liking.
    view full answer...
  • Will the Thule Force fit the Crossbars of a 2007 Hyundai Santa Fe
    Yes, I checked with Thule and the Thule Force XT # TH6356B that you referenced is confirmed to fit the factory crossbars of your 2007 Hyundai Santa Fe. Check out the review video I attached for this cargo box as well.
    view full answer...
  • Will Thule Force XTj Sport Cargo Box Clear Rear Hatch on 2014 Subaru Outback Wagon
    I checked with Thule and they do list the Force XT Sport cargo box, # TH6356B, as a fit for your 2014 Subaru Outback Wagon without any interference with the rear hatch. If the crossbars on your Outback can be adjusted forward, doing so will increase clearance between the box and hatch (when opened). You can also adjust the feet in the box more forward or rearward as needed for clearance.
    view full answer...
  • Will Thule Evolution 1600 Cargo Box Clear Antenna and Hatch on 2014 Mazda CX5
    The Thule Evolution cargo box has been discontinued since 2007 so I do not have any fit information on it. But I can tell you how to figure it out. First, there were two types of Evolution cargo box. One had just drilled holes for the mounting feet and the other had slots with more adjustability. In either case you will measure from the center of the forward most mounting foot position straight back to the furthest part at the back of the box. Then with the front crossbar as far forward...
    view full answer...
  • Can a Surfboard Be Carried on Top of Thule Force Large Rooftop Cargo Box # TH624
    Rooftop cargo boxes like the Thule Force L # TH6356B that you referenced are a great way to transport cargo items that need protection from the elements. However, these ABS plastic cargo carriers are not designed to bear any weight, only to carry the specified cargo weight of what is loaded inside them. I cannot recommend placing anything on top of this or any other plastic cargo box. Transporting any rooftop cargo on a vehicle requires that you observe the vehicle's maximum rated roof...
    view full answer...
  • Will Thule Force fit the Roof of a 2013 Ford Edge Plus a Bike Rack
    Yes, the Thule Force # TH6356B that you referenced would install on the roof of your 2013 Ford Edge with Thule crossbars installed on it. It should also fit well with a single bike rack as this box is pretty skinny at 24 inches wide. I attached a review video for this bike rack for you to check out as well.
    view full answer...
  • Will Thule Force Medium Cargo Box TH624 Clear Rear Hatch and Antenna on 2014 Nissan Pathfinder
    There is one simple measurement needed to determine if the Thule Force Medium Cargo Box # TH6356B will clear your roof-mounted antenna and allow full rear hatch opening without interference. Move your front roof crossbar as far forward as it will go and then measure from its center to the rear seam where the roof and hatch meet. If this distance is at least 41-7/8-inches then the box will clear the opened rear hatch. The antenna may have to me removed when using the cargo box, or you may...
    view full answer...
  • Will Thule Force Medium Rooftop Cargo Box Fit Onto Factory Roof Rack on 2016 Mazda CX-5
    The Thule Force XT Sport Rooftop Cargo Box # TH6356B referenced in your question is compatible with most factory crossbars. I did some research on the factory roof rack for your 2016 Mazda CX-5, and it looks like they include aero-style crossbars which have a low profile design and a wider surface for roof rack accessories to mount onto. I could not find the actual dimensions of the crossbars, but the Thule Force Cargo Box will fit onto crossbars with a maximum width of 3-1/2 inches and...
    view full answer...
  • Thule Force XT Roof Box and Other Options Compatible with 2014 Subaru Outback Wagon
    To help you determine what roof racks will fit your 2014 Subaru Outback, I've attached an article to assist with the products that will fit certain sizes of vehicles. There are many models that will fit your vehicle, so you won't be limited to a 11 cubic foot capacity of a box like the Thule Force XT Rooftop Cargo Box # TH6356B. You will need to take a measurement to determine what clearance you need and then compare it to the chart on the attached article. To help you with this measurement,...
    view full answer...
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  • Will Thule Force XT Sport Rooftop Cargo Box Fit Factory Crossbars On 2015 Chevrolet Equinox
    The Thule Force XT Sport Rooftop Cargo Box, part # TH6356B is verified to fit the factory crossbars on your Equinox. This cargo box measures 74-3/4 inches long x 4-3/4 inches wide x 16-3/4 inches tall and has 11 cu ft of cargo space with a weight capacity of 110 lbs. To make sure this cargo box will not interfere with the rear hatch opening you can take a quick measurement. As the attached photo shows, you measure from the center of the front crossbar rearward to the seam between the...
    view full answer...
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  • Does Lock on Thule Cargo Box have to be Changed
    You should not have to change the lock on the Thule cargo box # TH6356B. The lock should already be installed. If you can tell me what kind of problem you are having I can help you. If you want the lock to match other Thule locks you already have then yes, it would have to be changed. Otherwise there is no need to change it.
    view full answer...
  • Recommended Mounting Location of Thule Cargo Box on 2012 Subaru Outback Wagon
    Thule recommends that all of their boxes be placed as far back as possible, with the crossbars as far apart as the box will allow. They also do not recommend using the box when it is empty. The box is not made to be used with a tie-down and it isn't really necessary. It's made to stay secured without the use of any straps.
    view full answer...
  • Will Thule Force Alpine # TH623 Clear Rear Antenna Fit of 2014 Toyota 4Runner
    I looked up pictures of the antenna/fin you have on the rear of your 2014 Toyota 4Runner and it only appears to be slightly taller than the top of the roof rack crossbars, so the tapered rear of the Thule Force XT part # TH6356B would pretty easily clear above it. If you check out the picture I attached you can see that the rear of the box angles up compared to where it mounts to the crossbars.
    view full answer...
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  • Will the Thule Force XT Sport Interfere with Satellite Radio on 2011 Toyota Highlander
    Although cargo boxes, like the referenced Thule Force XT Sport # TH6356B, are great ways to carry and protect equipment, the box itself is not made out of a material that will completely block your satellite signal. It may cause a little interference depending on what you are carrying in the box, but the cargo box itself should not be an issue. I have attached a review video of this box for you to check out.
    view full answer...
  • Could Roof Mounted Cargo Box Hang Over Outside of Roof Line
    As long as the box is narrower than the side mirrors you'll be fine. Most drivers are aware of the width of their vehicle using their side mirrors as a gauge for that. If your boxes are narrower than that you'd most likely never run into an issue.
    view full answer...
  • Use of Weather-Strip Material to Prevent Water Entering Thule Rooftop Cargo Box
    Virtually no manufacturer actually wants/encourages owners to modify their products; this is certainly true for Thule and their various cargo boxes. My contact there advised that Thule cannot recommend making such a change although I do understand your interest in making your rooftop cargo box as water-tight as possible. It is all but impossible to make a rooftop cargo box totally waterproof. My Thule contact did say that on older cargo boxes that have seen a lot of use sometimes the front...
    view full answer...
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  • Will Thule Force XT Sport Allow Hatch on 2016 Honda CR-V to Open
    For the Thule Force XT Sport Rooftop Cargo Box # TH6356B to allow the hatch on your 2016 Honda CR-V to fully open without interference you need to have at least 48-1/4" from the middle of your forward most crossbar to the line where your roof and your hatch meet up. From what I could find it looks like this shouldn't be an issue for you. I'm not really sure where your antenna sits in relation to your crossbars so it is a little hard to determine if the Force XT Sport will clear it but...
    view full answer...
    Image 1 for
  • Will Thule Force XT Sport Rooftop Cargo Box Fit OEM Crossbars on a 2011 Honda CR-V
    Yes, the Thule Force XT Sport Rooftop Cargo Box # TH6356B will fit your 2011 Honda CR-V with the OEM crossbars. I confirmed this with Thule directly. Be sure not to go over the weight rating of your crossbars (which I believe is 165 lbs) and follow any guidelines on driving found in your owner's manual. Remember the box weighs 32 lbs so you'll need to subtract that from the weight rating (leaving you at 133 lbs) of your crossbars to avoid overloading your roof rack.
    view full answer...
  • Does Thule Force XT Fit 2009 Toyota Venza with OEM Crossbars
    I checked with Thule and the Thule Force Alpine 623 which was replaced by the Thule Force XT part # TH6356B is a fit for the factory crossbars of your 2009 Toyota Venza. The Force XT requires your Venza to have at least 48-1/2 inches from the center of the front crossbar to the rear hatch seam to allow the hatch to open whereas the 623 requires 52-1/4 inches.
    view full answer...
  • Does Thule Force XT Sport Rooftop Cargo Box Fit Factory Crossbars of 2014 Honda CR-V
    Yes the Thule Force XT cargo box part # TH6356B is a fit for the factory crossbars of your 2014 Honda CR-V.
    view full answer...
  • Are There Lift Brackets Available for a Roof Box To Mount Inside Factory Rails on 2004 Jeep Liberty
    I'm not aware of there being a specific part available for this and most roof rack crossbars like this will have a slight upward bow to them. Either way, I don't think this is going to affect your ability to mount a box like the Thule Force XT Sport # TH6356B since they'll sit inside the side rails you're referring to. This box is only 24-3/4" wide, so it shouldn't be impeded, but there are some other boxes that are more narrow that will also fit on your factory crossbars. If a 24-3/4"...
    view full answer...
  • Can Rainwater Leak into the Thule Force XT Cargo Box?
    While no cargo carrier is 100% water tight, it is highly unlikely that water will leak into the Thule Force XT box like the # TH6356B. This is because the lid has a lip that goes all the way around the box that allows water to drop off from the lid onto the roof without going into the bottom base of the box where your cargo is stored. I went ahead and attached an image that shows this lip. The Force XT fits crossbars that do not exceed 3-5/16" wide x 1-1/2" tall. If you need a crossbar...
    view full answer...
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  • Will an Enclosed Cargo Carrier Interfere with Backup Camera and Sensors on 2011 Infiniti QX56
    Due to the location of the backup camera and sensors, the Rola Swinging Enclosed Cargo Carrier, # 59109, and all other enclosed cargo carriers will interfere when backing up. Like your QX56, most vehicles with backup cameras and sensors are located in the bumper and around the lift gate handle. Because enclosed carriers install in the trailer hitch, they block most of that area. The only way to use an enclosed cargo carrier and have full use of your backup camera and sensors is to use...
    view full answer...
  • Will the Thule Force XT Cargo Box Fit a 2010 Toyota 4Runner without Hatch Interference
    I checked with Thule and on a 2010 Toyota 4Runner there will be interference with the rear lift gate if you were to use Thule Force XT cargo box # TH6358B. The largest box that you can use without rear hatch interference is the medium box # TH6356B. Going with the smaller box will be the way to go.
    view full answer...

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Info for this part was:

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