Thule Motion 3 XL black rooftop cargo box with aerodynamic design for extra storage on vehicles
Thule Motion 3 XL rooftop cargo box mounted on a gray SUV with a person standing beside it in a mountainous landscape.
Thule Motion 3 XL rooftop cargo box in gray designed for extra storage on vehicles and easy mounting system
Black Thule Motion 3 XL roof cargo box mounted on a white car side view isolated on white background
Black Thule Motion 3 XL rooftop cargo box mounted on a white compact car model from rear angle
Top view of a white car with a black Thule Motion 3 XL roof cargo box mounted on its roof racks
Close-up of Thule Motion 3 XL car roof cargo box mounted on vehicle rear section in black finish
Close-up of the Thule Motion 3 XL rooftop cargo box showing its open lid and support mechanism
Thule Motion 3 XL rooftop cargo box mounted on car roof shown in multiple open positions
Thule Motion 3 XL black rooftop cargo box with aerodynamic design for extra storage on vehicles
Thule Motion 3 XL rooftop cargo box mounted on a gray SUV with a person standing beside it in a mountainous landscape.
Thule Motion 3 XL rooftop cargo box in gray designed for extra storage on vehicles and easy mounting system
Black Thule Motion 3 XL roof cargo box mounted on a white car side view isolated on white background
Black Thule Motion 3 XL rooftop cargo box mounted on a white compact car model from rear angle
Top view of a white car with a black Thule Motion 3 XL roof cargo box mounted on its roof racks
Close-up of Thule Motion 3 XL car roof cargo box mounted on vehicle rear section in black finish
Close-up of the Thule Motion 3 XL rooftop cargo box showing its open lid and support mechanism
Thule Motion 3 XL rooftop cargo box mounted on car roof shown in multiple open positions
Thule

Thule Motion 3 XL

$1,349.95
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Thule Motion 3 XL Cargo Box – 18 cu ft of Aerodynamic, All-Season Roof Storage

The Thule Motion 3 XL adds big, weather-protected capacity without extra noise or hassle. With dual-side opening, secure SlideLock latches, and the tool-free PowerClick mount, it’s a premium roof box for Canadian road trips, ski weeks, and multi-sport family adventures.

A sleek, low-drag shape helps minimize wind resistance and noise, while a forward mounting position improves rear-hatch clearance on many vehicles. Glove-friendly handles and lid lifters make opening and closing easy in real-world conditions.

Key Features & Specifications

  • Volume: 18 cu ft (≈ 510 L) — swallows bulky kits for longer trips
  • Opening: Dual-side lid access with SlideLock security and closure indicator
  • Mounting: PowerClick quick-mount with built-in torque “click” for a secure fit
  • Load Capacity: up to 165 lb (follow vehicle/rack limits; use lowest rating)
  • Rack Fit: Works with most aero, square, round and factory crossbars within Thule bar-spread guidance
  • Weight: two-person lift recommended for install/removal
  • Model: Thule Motion 3 XL

Who It’s For (Target Audience)

Perfect for active families, skiers/snowboarders, campers and road-trippers who want more space than Motion 3 L without jumping to XXL. Great on SUVs and wagons running quality crossbars.

Popular Search Themes

  • Thule Motion 3 XL cargo box Canada / 18 cu ft roof box
  • SlideLock dual-side opening / PowerClick mounting system
  • aerodynamic rooftop carrier low noise / large roof storage
  • Motion 3 XL capacity and specs / Thule Motion 3 lineup
  • best Thule cargo box for ski trips, camping and family travel

Compare Thule Roof Boxes

Motion 3 L

16 cu ft • Dual-side
  • SlideLock + PowerClick
  • Best for compact kits & shorter skis
  • Great all-rounder size

Compare Motion 3 L

Motion 3 XL (this page)

18 cu ft • Dual-side
  • More length/volume than L
  • SlideLock + PowerClick
  • Best for bigger family loads

View Motion 3 XL

Motion 3 XXL

21–22 cu ft • Dual-side
  • Max capacity and length
  • SlideLock + PowerClick
  • Best for extended trips

Compare Motion 3 XXL

Motion 3 XL Low

Low-profile • Dual-side
  • Slim height for clearance
  • Urban parking & low garages
  • Best for lower rooflines

Compare Motion 3 XL Low

Pulse M

14 cu ft • Value
  • Great capacity-to-size ratio
  • Passenger-side opening
  • Best budget mid-size

Compare Pulse M

Pulse L

16 cu ft • Value
  • Larger volume, rugged ABS
  • Passenger-side opening
  • Best value high-capacity

Compare Pulse L

Thule Motion 3 XL – Frequently Asked Questions

How much gear fits in the Motion 3 XL?
About 18 cu ft (≈ 510 L) — more length and volume than Motion 3 L for skis/boards, duffels and family kits.
Is it easy to install and remove?
Yes. The PowerClick quick-mount “clicks” when tight, so you know it’s secure. Two people recommended for lifting on/off.
Can I open it from both sides?
Yes. It features dual-side opening with the SlideLock system that indicates secure closure.
Will the rear hatch clear?
On many vehicles, yes. The Motion 3 forward position improves hatch clearance—always check your rack/vehicle combo.
What’s the maximum load?
Up to 165 lb, but never exceed the load limits of your vehicle or roof rack system (use the lowest rating).
What crossbars will it fit?
Works with most aero, square, round and factory crossbars within Thule’s recommended bar-spread. Verify fit before purchase.

 

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Testimonials

★★★★★

Wow! Great service today as the educated and patient staff walked me through many of the Thule cargo box options. Then they helped me install it and it works great. Incredible service from start to finish and I appreciated the zero-pressure environment. Highly recommended!

Gregory Osmond
★★★★★

Kaelen was incredibly helpful, knowledgeable, and kind with helping us out with picking out a roof rack. She even helped with taking the time to efficiently set up the racks for us which was really helpful. Highly recommended!

Justin Lee
★★★★★

Excellent experience from start to finish. After a negative experience with a competitor, Sam ordered my Thule caprock and snowpack ski racks which were received and installed within one week. Great customer experience - highly recommend.

Peter Dawson
★★★★★

Excellent experience!! We called the store and they answered right away, which was awesome. Ordered a Thule bike rack. The gal on phone said she would ordered it and it came the next day which was a pleasant surprise. Staff was professional and friendly! They will be getting all of our business going forward!

Daunalee Zentner

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