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Get all that luggage & gear out of the car and up on the rooftop! The Thule 603 Ascent 1500 Roof Box is part of the all-new Thule Ascent cargo box series, delivering the ultimate combination of value and feature-packed gear transport convenience & rugged durability. The Thule 603 Ascent cargo box is the shortest length roof box model in the series and is ideal for vehicles with shorter roof lines or anyone that doesn't need to transport long items such as skis. The Thule 603 Ascent cargo carrier has a hefty 15 cu. ft. capacity, a very popular option for those seeking a fully protective and waterproof luggage box for all types of gear such as golf clubs, baby jogger / baby stroller, luggage, camping equipment & many other uses! Holds up to 4 snowboards, not long enough for skis. Smooth, aerodynamic design for minimal wind resistance.
Includes the new Thule QuickGrip hardware (previously found only on Thule Racks most expensive cargo box models) allowing the Thule 603 Ascent 1500 to connect quickly, using no tools, directly to all styles of Thule base rack load bars, Yakima base roof rack round cross bars, Inno Racks cross bars & other after-market roofrack manufacturers and of course virtually all factory roof rack crossbars. Dual-side opening for convenient loading and unloading. SecureLock central locking system with Thule locks included for locking your equipment and belongings inside the Thule 603 Ascent roof box. Beautiful matte black anti-scratch finish and constructed of ultra-strong and UV resistant A.B.S. for an amazing strength to weight ratio. Dimensions: 66.9"(L) x 35.1"(W) x 16"(H) / Weight: 35 lbs.
- Hefty 15 cu. ft. cargo capacity. A very popular option for those seeking a fully protective and waterproof luggage box for all types of gear such as golf clubs, baby jogger / baby stroller, luggage, camping equipment & many other uses! Holds up to 4 snowboards, not long enough for skis.
- The Thule 603 Ascent cargo box is the shortest length roof box model in the series and is ideal for vehicles with shorter roof lines or anyone that doesn't need to transport long items such as skis.
- Load straps included for securing in place all gear contents inside the cargo box during travel.
- Patented dual-side opening allows you to access gear from either side of your vehicle.
- Wind tunnel tested aerodynamically shaped design reduces wind drag, helping to reduce your fuel costs.
- Thule 603 Ascent car roof box is universally compatible with any Thule base roof rack load bar styles (including Thule Xsporter & Pro Series truck racks), Yakima base rack round cross bars, Inno Racks crossbars and virtually all factory rack crossbars.
- Thule Racks QuickGrip mounting system included! The easist and fastest on/off attachment system available. No tools needed for roof box installation or removal.
- Constructed with high impact resistant and UV protected ABS materials. Diffuser Technology improves aerodynamics and torsional stability.
- Modern matte-black scratch resistant finish.
- Convenient single key access from either side of Thule 603 Ascent cargo box with SecureLock central locking system (Thule locks and keys included). Improved locking system features a user-friendly key and readable decal. And as with all other Thule boxes, there is a built-in safety feature, the Thule NO-GO Central Locking System, so the key can only be removed when the cargo box is completely closed. No worrying whether the box is properly shut when heading down the highway.
- Dimensions: 66.9"(L) x 35.1"(W) x 16"(H) / Weight: 35 lbs.
- Easy to follow Thule 603 Ascent roof box installation instructions included.
- Thule Racks Lifetime Warranty!
» Thule 603 Ascent roof box installation instructions
» Thule cargo roof boxes comparison chart
Thule 603 Ascent 1500 Roof Box Resource Wall
Product Reviews
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Product Discussion
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ORS Racks Direct Crew says - The Thule Ascent car roof boxes have a long range of adjustment to fit nearly any distance between the front roof rack crossbar and the rear roof rack cross bar (referred to as crossbar spread). In fact the Ascent 1700 fits any crossbars with a spread as short as 23-5/8" inches and as long as 37", Ascent 1600 fits any crossbars with a spread as short as 23-5/8" inches and as long as 35-5/8", Ascent 1500 fits any crossbars with a spread as short as 23-5/8" inches and as long as 33-1/2" and Ascent 1100 fits any crossbars with a spread as short as 23-5/8" inches and as long as 37-1/2".
Product Videos
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Customer Installation Pictures
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Chevrolet Equinox Roof Rack Luggage Box with Thule 603 Ascent 1500 Cargo Box |
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ORDERING NOTES
This car roof mount luggage / cargo box connects directly to all styles of Thule base rack load bars, Yakima multi-purpose base rack round crossbars, Inno roof rack bars and virtually all factory roofrack cross bars. At order checkout we will obtain your vehicle year/make/model info to ensure this cargo carrier is compatible.
PLEASE NOTE: An additional freight charge of $50.00 will be added to your order as this item cannot be shipped via UPS/Fed Ex due to its oversize dimensions and must be shipped via freight & we ask that you please allow up to 2-3 weeks for delivery of this item. For your convenience this item ships directly to both residential and commercial business addresses, please supply either a residential or commercial business address for delivery at checkout. Please inspect your Cargo/Gear Box before signing and accepting delivery from freight company as ORS Racks Direct cannot accept returns of these items after delivery has been accepted by the customer. If you have any questions concerning shipping and/or delivery please contact us, we're glad to help!
In order to offset the cost of shipping we have discounted this item from the MSRP price. Additionally there is no sales tax charge on all destinations outside of Vermont.
QUICK ORDERING SOLUTION
Alternatively, we suggest using our easy Thule Racks automated fit guide to quickly select the correct Thule multi-purpose base roof rack system and/or cargo carrier if you don't have one already installed:![]()





















