Product details
Thule Force 3 XXL Rooftop Cargo Box
Maximize your vehicle’s storage with the Thule Force 3 XXL Rooftop Cargo Box. Its expansive 21-cubic-foot capacity provides room for skis, snowboards, camping equipment, luggage and other bulky cargo while freeing up valuable passenger and cargo space inside your vehicle.
As the largest Force 3 size, the XXL is designed for families, winter-sports enthusiasts and travelers carrying substantial loads. Its long profile accommodates skis up to 215 cm, while the durable AeroSkin surface and streamlined shape provide dependable year-round performance.
Product Highlights
- 21 cubic feet of storage for luggage, camping equipment, skis, snowboards and other bulky gear.
- Room for skis up to 215 cm makes it ideal for longer winter-sports equipment.
- PowerClick quick-mount system provides fast, tool-free installation with an integrated torque indicator.
- DualSide opening provides convenient access from either side of the vehicle.
- SlideLock security separates opening and locking functions and indicates when the lid is securely closed.
- Durable AeroSkin surface is designed for frequent use and changing road conditions.
- Forward roof position helps improve rear-hatch clearance on compatible vehicles.
- Locks included and compatible with the Thule One-Key System.
Why Choose the XXL Size?
The Force 3 XXL is the largest option in the Force 3 lineup. Its 21-cubic-foot interior is intended for customers who need maximum rooftop storage for extended trips, family vacations, camping adventures and winter travel.
The extended 91.4-inch length can accommodate skis up to 215 cm, while the 35.2-inch width provides generous space for luggage and general cargo. Because of its substantial size, carefully confirm your available roof space, vehicle roof capacity, crossbar placement and rear-hatch clearance before ordering.
Maximum Capacity for Every Season
The Force 3 XXL can accommodate up to 5–7 pairs of skis or 3–5 snowboards. Outside of winter, its spacious interior is ideal for suitcases, duffel bags, tents, sleeping bags, strollers and other bulky travel equipment.
The cargo box has a maximum load capacity of 165 lbs. Your actual allowable cargo weight is determined by the lowest-rated component in the system, including the vehicle roof, crossbars, mounting system and cargo box.
Fast and Secure PowerClick Installation
Thule’s PowerClick quick-mount system makes installing the Force 3 straightforward and intuitive. The tool-free mounting hardware tightens around compatible crossbars from inside the cargo box.
An integrated torque indicator produces an audible click when each mounting point has been tightened correctly, helping remove the guesswork from installation. Because the XXL weighs 57 lbs, having two people available can make lifting and positioning the box easier.
Convenient Access from Either Side
DualSide opening lets you load and unload the cargo box from either the driver or passenger side of the vehicle. This flexibility is especially useful in garages, parking lots and campsites where access may be limited on one side.
The sculpted lid creates a natural grip for easier opening and closing without a bulky external handle.
SlideLock Security
The integrated SlideLock system separates the opening and locking functions. It automatically locks the lid and indicates when the cargo box has been closed correctly, helping ensure your equipment is secure before you drive away.
Built and Tested for the Road
The durable AeroSkin surface is designed to handle the demands of regular use while maintaining a clean black matte appearance. Its streamlined profile complements modern vehicles and helps limit unnecessary wind resistance and road noise.
Thule tests its rooftop cargo boxes at the Thule Test Center and in real-world road conditions. The Force 3 has undergone extensive safety and durability testing to help protect your cargo mile after mile.
Roof Rack Compatibility
The Force 3 XXL installs directly on several Thule crossbar systems. Some truck, van and platform-rack applications require an adapter.
| Thule WingBar Evo | Compatible |
| Thule AeroBlade | Compatible |
| Thule ProBar Evo | Compatible |
| Thule Xsporter Pro | Requires the Thule T-track Adapter 697-6 |
| Thule TracRac – Truck | Requires the Thule T-track Adapter 697-6 |
| Thule TracRac – Van | Requires the Thule T-track Adapter 697-6 |
| Thule Caprock | Requires the Thule Caprock Cargo Box Kit |
Specifications
| Volume | 21 cu ft |
| External Dimensions | 91.4 x 35.2 x 17.9 in |
| Internal Dimensions | 88.2 x 30.5 x 15.6 in |
| Height Above Crossbar | 21.4 in |
| Load Capacity | 165 lbs |
| Cargo Box Weight | 57 lbs |
| Mounting System | PowerClick |
| Locking System | SlideLock |
| Locks Included | Yes |
| Thule One-Key Compatible | Yes |
| Ski Capacity | 5–7 pairs |
| Snowboard Capacity | 3–5 snowboards |
| Maximum Ski Length | 215 cm |
| Color | Black matte |
| Country of Origin | USA |
| Thule Model Number | 645950 |
Fitment Notice: The Force 3 XXL is the largest cargo box in the Force 3 lineup. Compatibility depends on the vehicle, roof rack, crossbar dimensions, crossbar spacing, roof-load capacity and rear-hatch clearance. Confirm all measurements and load limits before ordering. Contact The Rack Shop if you need help verifying compatibility.
Manuals and Fit Resources
Review installation instructions, cargo box comparisons, accessory compatibility and vehicle hatch-clearance information before purchasing.
Questions?
Need help with fitment, compatibility or choosing the right product? Our team is happy to help. Reach out by email, give us a call, or stop by our Austin showroom.
Email Us About This Product >Prefer to talk?
Call us at (512) 351-9849
7200 McNeil Drive, Suite B2
Austin, TX 78729
- Product Note:
- In Shop Only (Austin, TX)
