The Thule 603 Ascent 1500 cargo box is 15 cubic feet, and the ulitmate in a luggage style box. The Thule 603 Ascent cargo box has a smooth, aerodynamic design, minimizing wind resistance. This cargo box is easy to mount, open and lock.
15 cubic feet of storage
Box Outer Dimensions 65 in. X 35 in. X 16.4 in.
High grade impact & scratch resistant material sets the Ascent series apart from all the rest
New Quick Grip hardware for easy on/off attachment to roof racks
Access gear from either side of the car using patented dual-side opening feature
Smooth, aerodynamic design for minimal wind resistance
Easy opening and closing with the one key, NO-GO Central Locking
Mounts to most factory installed racks, and aftermarket racks
Diffuser Technology - improves aerodynamic and torsional stability
The Thule Ascent will ship directly from Thule, please allow 7 - 14 business days for delivery.
Manufacturer Part Number:
Ask A Tech if This Rack Fits Your Car
Frequently Asked Questions
Below you will find a list of the most frequently asked questions for this product. If you need more assistance you can email a rack-install technician, or call us at:
If you drive an SUV or van, probably not. Be sure to measure the total height of the vehicle with the Thule 603 Ascent 1500 installed, and keep that information handy (on the inside of your sun visor is a great place). Running into your garage will, unfortunately, void the box's warranty.
While the weight limit of your roof rack may differ, cargo boxes can hold up to 165 pounds.
As long as your vehicle is equipt with the crossbars (side to side) then all of our cargo boxes will attach directly to the rack. If you have a rear hatch, make sure to measure how much room you have and compare to the box length to make sure the hatch won't hit the box when opening. If you don't have crossbars, you will first need to add those prior to adding in a cargo box.