Force 3 Cargo Box
Style & Size:
Quantity
Thule Force 3 Cargo Box hauls gear with rugged style and streamlined performance
What Our Gearhead® Experts Are Saying:
“I’ve used the Thule Force 3 on cross-country ski trips, summer road vacations, and even grocery hauls when we needed extra cargo space. The quick PowerClick mount makes setup so easy—even solo—and the DualSide access is a lifesaver when you're parked tight or packing late at night. It's solid, quiet, and fits everything from snowboards to duffels.”
From weekend mountain escapes to long-haul road trips, the Thule Force 3 Cargo Box transforms our vehicle into an all-season hauler. Built with a rugged AeroSkin surface, it stands up to heavy use and harsh weather, while its clean lines and aerodynamic profile help reduce drag and wind noise along the way. Whether we're loading skis for winter laps or stashing camping gear for the desert, the Force 3 gives us the added space we need without compromising on style or efficiency.
We especially love the practical design that keeps up with fast-paced travel. The PowerClick mounting system makes attachment fast and intuitive, with an integrated torque indicator that clicks into place when it’s secure. DualSide opening adds flexible access from either side of the vehicle, and the SlideLock system makes sure the lid stays locked and sealed with an audible confirmation. With room for up to seven pairs of skis or five snowboards, this box is ready for whatever adventure we're chasing next.
Details
- Large rooftop cargo box ideal for road trips, ski days, and everyday hauling
- DualSide opening allows access from either side of the vehicle
- PowerClick mount system provides secure attachment with a torque indicator
- SlideLock system separates locking and opening functions for added security
- AeroSkin surface adds durability and aerodynamic efficiency
- Extensively tested for durability, crash safety, and exposure
- Compatible with most Thule bars and several aftermarket crossbar systems
- Item #THUZ3UE
- Material
- AeroSkin (plastic polymer)
- Dimensions
- [medium, external] 69 x 32 x 17.4in, [medium, internal] 65.8 x 27.3 x 15.1in, [large, external] 76.8 x 33.3 x 16.8in, [large, internal] 73.6 x 28.7 x 14.4in, [L Sport, external] 75.2 x 24.7 x 16.7in, [L Sport, internal] 72 x 20.2 x 14.4in, [XL, external] 84.8 x 34.1 x 18.5in, [XL, internal] 81.5 x 29.5 x 14.7in, [XXL, external] 91.4 x 35.2 x 15.6in, [XXL, internal] 88.2 x 30.5 x 15.6in
- Volume
- [medium] 14cu ft, [large] 16cu ft, [L Sport] 11cu ft, [XL] 18cu ft, [XXL] 21cu ft
- Opening
- DualSide accessibility
- Compatibility
- PowerClick mounting system
- Locks Included
- SlideLock
- Part Number
- [medium] 645250, [L Sport] 645650, [large] 645750, [XL] 645850, [XXL] 645950
- Claimed Weight
- [medium] 37lb, [large] 43lb, [L Sport] 34lb, [XL] 49lb
- Activity
- travel
- Manufacturer Warranty
- limited lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 12 ratings
Review Summary
Customer Images
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Selecting an option will reload the available reviews on the pageAugust 23, 2025
Great Purchase
Have a jeep grand Cherokee and this fit perfectly on the jeep crossbars. It packs more than you would think. It looks sleek on top of the vehicle and is super easy to install. Definitely recommend and would purchase again in a heartbeat. It also was delivered relatively fast, I think it was about 5 days.
Originally reviewed on thule-us-ca
August 20, 2025
No complaints
We are currently on a 1000 mile road trip, and have nothing but good things to say about this carrier. We are using it on our subaru outback, on the factory rails, and it makes virtually no noise. We keep forgetting that it's there. It's easy to get into, and keeps things very secure. We can fit a kayak next to it on the factory rails, though we can't open it all the way. Not a complaint, just a fact of using the factory rails! The carrier itself has been awesome
Originally reviewed on thule-us-ca
August 11, 2025
Perfect Size and Super Convenient for Camping Trip
I’ve been really impressed with the Thule Force 3 L for car road trip camping. It’s been a game-changer for keeping gear out of the vehicle and freeing up interior space. The size is perfect — it easily fits numerous containers, and I’ve found it to be just right for extra camping gear without being too bulky. Opening and closing it is simple, and mounting it on my own was no problem. I’m glad I chose this size, as it offers plenty of capacity while still being manageable. Highly recommend for anyone looking to add storage and organization to their camping trips.
Originally reviewed on thule-us-ca
August 4, 2025
Travel made easy
Love the space it fit 1 full size suitcase laying down and 2 carryon suitcases on there sides and lots of other stuff we had it on a 2024 Toyota grand Highlander and we did not have any problems with the antana fin or the liftgate getting in the way one not I would suggest to people is to follow the instructions and make sure to tighten every so often I did it about every 10 hrs of driving and I was able to tighten it 1/2 a turn each time
Originally reviewed on thule-us-ca
July 17, 2025
Eastern Canadian Petzl Pro Rep Van
I had an earlier version of this ski box which lasted over 20 years of 4 season service. I recently received a larger box which has proven to be a perfect size.
Originally reviewed on thule-us-ca
June 23, 2025
Great Roof Box
Happy about this purchase. Easy to put on the roof rack. Great inside space. Not too big, just perfect.
Originally reviewed on thule-us-ca
June 4, 2025
Worth the heavy price tag
I’m extremely happy with the Thule Force 3 L Sport. I had it installed and ready to go in just minutes. Great design and extremely easy to access once on the car. The dimensions of the 3 L sport hit the sweet spot for gaining enough cargo space and fitting a full-size mtb.
Originally reviewed on thule-us-ca
May 28, 2025
Great storage and looks good
Fits 4 of the thule black bags and 3 bagpacks. Fits good on the suv with nissan pathfinder crossbars
Originally reviewed on thule-us-ca
May 14, 2025
Easy to use
I've had my Force 3L for about a month now, uses it several time and left it on my car daily. It makes minimal noise even with my sunroof, it's super easy to operate and was easy to put together. The dual opening sides makes it perfect for any car.
Originally reviewed on thule-us-ca
April 1, 2025
Easy attachment, tons of room.
[This review was collected as part of a promotion.] Going from an old beat up box to this has been a dream. The fact that it opens from boths sides is absolutely crucial for me, as my car has limited access on the normal passenger side of things. The key and latch system is so easy to open and close, whereas my last box always required a wrestling match to get closed.
Originally reviewed on thule-us-ca
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