The Thule 603 Ascent 1500 has been replaced by the Thule 624 Force M
Thule 624 Force M

Thule 624 Force M

The Thule 624 Force M cargo box offers value and space while still offering key conveniences. The 624 Force M has a cargo capacity of 13 cubic feet and is only available in matte black.

Thule 603 Ascent 1500

Thule 603 Ascent 1500
  • Thule 603 Ascent 1500 Alternate Image Thumbnail
Status: Discontinued

Product Code: 100603


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

Buying Notes

The Thule Ascent will ship directly from Thule, please allow 7 - 14 business days for delivery.


Weight: 35lbs

Length (carton): 66.9"

Width (carton): 35.1"

Height (carton): 16"

UPC: 091021603509

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