THULE REAR-MOUNTED CARGO SYSTEM
Thule Arcos Box L 400L Hitch Cargo Carrier
400 litres of secure cargo space, down low and easy to reach.
The Thule Arcos Box L moves your cargo from the roof to the rear of the vehicle, creating generous hard-shell storage without making you lift luggage overhead.
Its streamlined wedge shape is designed for efficient travel, while the low mounting position makes loading, unloading and accessing your gear considerably easier.
But there's one critical thing to understand before ordering: Arcos is a two-piece system.
REQUIRED FOR INSTALLATION
The Arcos Box Cannot Be Used By Itself.
The Thule Arcos Box L must be mounted on a Thule Arcos Platform.
The box does not connect directly to your vehicle's hitch receiver. First choose the Arcos Box L, then choose the platform that connects the complete system to your vehicle.
You have two platform styles: the standard Arcos Platform or the more advanced Arcos Tilt Platform.
BUILD YOUR ARCOS
Two Pieces. One Complete Cargo System.
STEP 1
Choose Your Cargo Box
Thule Arcos Box L
400 litres of hard-shell, rear-mounted cargo capacity with a 50 kg / 110 lb load rating.
You're looking at it.
STEP 2
Choose How You Want to Mount It
Choose the lower-cost standard platform or upgrade to the Tilt Platform for easier rear vehicle access and vertical stowing.
Your Arcos system requires one of these platforms.
WHY CARGO AT THE REAR?
Stop Lifting Everything Onto the Roof.
Roof boxes create excellent additional storage, but every duffel, suitcase and piece of gear still needs to be lifted above your head.
Arcos puts the cargo box much closer to the ground. That makes packing and unpacking easier while keeping the roof completely free for kayaks, skis, bikes or simply cleaner airflow.
Its aerodynamic shape is also designed to minimize the impact on fuel consumption or electric-vehicle range.
DESIGNED AROUND EVERYDAY USE
Big Storage Without the Rooftop Reach.
400 L / 14 cu. ft.
Generous hard-shell storage adds substantial room for luggage, camping gear and everyday cargo.
Low Loading Height
Rear mounting makes the Arcos considerably easier to load and unload than cargo carried on top of the vehicle.
Aerodynamic Design
The streamlined wedge-shaped box is designed for little impact on fuel consumption or electric-vehicle range.
SlideLock
Separate locking and opening functions automatically secure the lid and indicate when the box has been properly closed.
One-Person Attachment
The box is designed so one person can attach it to the required Arcos platform.
Compact Storage
Individual parts can be separated to make the Arcos easier to handle and more compact when stored.
STEP 2: CHOOSE YOUR PLATFORM
Standard or Tilt?
Both platforms complete the Arcos system. The difference is how much convenience you want built into the hitch connection.
| FEATURE | STANDARD PLATFORM | TILT PLATFORM |
|---|---|---|
| Purpose | Mount Arcos Box | Mount Arcos Box + added access |
| 1.25" Receiver | Yes | Choose 1.25" variant |
| 2" Receiver | Yes | Choose 2" variant |
| Tilts Down | No | Yes |
| Folds Vertically | No | Yes |
| Tool-Free AutoAttach | No | Yes |
| Best For | Value + simplicity | Convenience + rear access |
BEFORE YOU ORDER
Check Your Hitch, Vehicle Width and Rear Clearance.
The complete Arcos system mounts behind the vehicle, so receiver compatibility, hitch capacity and vehicle clearance all matter.
Thule recommends that the cargo carrier should not extend beyond the outer edges of the vehicle.
Not sure which platform or hitch you need? Talk to Cap-it before ordering and we'll help evaluate the complete system.
PRODUCT DETAILS
Thule Arcos Box L Specifications
| SPECIFICATION | ARCOS BOX L |
|---|---|
| Model | 906201 |
| Volume | 400 L / approximately 14 cu. ft. |
| External Dimensions | 170 x 80 x 48 cm |
| Internal Dimensions | 140 x 50 x 44 cm |
| Load Capacity | 50 kg / approximately 110 lb |
| Box Weight | 19.5 kg / approximately 43 lb |
| Locking System | SlideLock |
| Locks Included | Yes |
| One-Key System Compatible | Yes |
| Colour | Black |
| Country of Origin | USA |
| Required Component | Thule Arcos Platform |
THE CAP-IT TAKE
Think of Arcos as a Rear-Mounted Roof Box.
That's probably the simplest way to understand it.
You get the secure, weather-protected storage you'd expect from a premium Thule cargo box, but you don't have to climb up to the roof every time you want your gear.
The two-piece design also means you can choose how sophisticated you want the hitch side to be. The standard platform keeps the system simpler and less expensive. The Tilt Platform costs more, but makes rear access and day-to-day use substantially more convenient.
If this were ours and the vehicle is used regularly, we'd seriously consider the Tilt Platform. If the priority is simply getting 400 litres of cargo behind the vehicle for the lowest system cost, the standard platform does the job.
FLEXITI FINANCING
Equal Monthly Payments. No Interest.
The Arcos Box and required platform create a premium cargo system. Cap-it offers Flexiti financing for qualifying customers, giving you another way to purchase the complete setup at once.
Financing is subject to approval and the current Flexiti terms and conditions.
EXPLORE FLEXITI FINANCING
THULE AT CAP-IT
Build the Complete Arcos System at Cap-it.
Choose your Arcos Box, select the right platform and make sure your vehicle has the hitch capacity and clearance required for the complete system. Shop online across Canada or visit a Cap-it location for help putting it all together.
Established 1977
Decades of truck, vehicle and adventure accessory experience.
25+ Retail Locations
Real stores and real product specialists across Western Canada.
System Compatibility
We'll help confirm the box, platform and vehicle configuration.
Hitch Sales + Installation
Need a receiver? Cap-it can supply and professionally install hitches for many vehicles.
FREE SHIPPING
Shipping eligibility and any oversized or destination-related conditions are governed by the current Cap-it Shipping Policy.







