Thule® - Sonic Cargo Box

52 reviews / Item # sp1932
Thule® - Sonic Alpine Silver Cargo BoxThule® - Sonic Alpine Silver Cargo BoxThule® - Sonic Alpine Silver Cargo BoxThule® - Sonic Alpine Silver Cargo BoxThule® - Sonic Black Cargo BoxThule® - Sonic Black Cargo BoxThule® - Sonic Silver Cargo BoxThule® - Sonic Alpine Silver Cargo BoxThule® - Sonic Cargo Box Installation InstructionsThule® - Cargo Boxes ComparisonThule® - Test ProgramThule Authorized Dealer
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Thule Accessories

Sonic Cargo Box by Thule®. The Sonic is Thule's versatile series of aerodynamic cargo boxes, with a size and color to suit every need and taste. The Sonic boxes are finished in your choice of metallic black or metallic silver. The Sonic can be mounted quickly and easily with no tools required; it's packed with easy loading features, lockable, and can be mounted on Thule rack systems, round bars and most factory racks.

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Regardless of the size you choose, any Sonic Box will look great on your roof. Each features the patented AeroNose design, with a shape that cuts through the air and reduces wind drag by up to 35%, for greater fuel efficiency and quieter travel. The Sonic Alpine also has aerodynamic dimples that further reduce drag by more than 10%. And the Sonic's patented rear angled base and expanded vehicle mounting points help ensure the cargo box won't interfere with trunk or hatch opening. Each size is available in your choice of metallic black or metallic silver.


AeroNose™ Design

AeroNose™ Design

Patented AeroNose design reduces drag by up to 35% vs. comparably sized boxes, improving fuel economy.

Patented rear-angled base

Patented rear-angled base

Patented rear-angled base and expanded vehicle mounting points help maximize trunk and hatch clearance.

AcuTight mounting system

AcuTight mounting system

Pre-installed AcuTight mounting system clicks when you reach optimal hold to ensure your box is mounted securely and properly before driving.

Dual-side Opening

Dual-side Opening

Dual-side opening for easier loading and unloading from either side of the vehicle.



Oversized SecureLock™ is easy to grasp, even with gloves on, and ensures the box is closed securely and properly prior to driving.

Made in the United States

Made in the USA

All Thule cargo boxes are proudly made in Franklin Park, Illinois.

The Sonic is super easy to install and can be mounted to Thule racks systems, round bars and most factory racks. The tool-free AcuTight mounting system lets you secure the box to the rack load bars in about 5 minutes. Each AcuTight knob will make an audible "click" when the box is securely attached to the roof rack. Along with being easy to install, the Sonic is also simple to load. The dual-side opening lid lets you load the box from either side of the vehicle. The 2 included straps can be used to tie your gear down in the box and prevent it from sliding around. Once all your gear is loaded, the 2 included One-Key lock cylinders can be used to lock the lid and lock the box to the carrier. The SecureLock feature ensures that all gear is locked and the box is properly closed prior to driving, because the key can only be removed when the box lid is closed and locked. And the ergonomic lock knob is so easy to grasp and turn; it can even be done with gloves on.

Each Sonic Cargo Box comes with everything required for installation, including detailed instructions. The limited lifetime warranty applies to the original purchaser of the product, and warrants the product against manufacturer's defects in materials or workmanship.

Thule® designs and manufactures products for outdoor enthusiasts, athletes, and those that lead an active lifestyle. They specialize in developing and marketing cargo transportation solutions so these people can bring their gear with them wherever they go, whatever they drive. Thule was founded in Sweden in 1942, and built their first roof rack system in the 1960s. Today Thule leads the market with innovative products for transporting, bicycles, watercraft, snowsport equipment and other gear on the roof, with the trailer hitch, on the trunk or hatch, or in the pickup bed. Thule manufactures the strongest, most durable and longest lasting load carrying systems on the market, and backs their products with a lifetime warranty. Over 80% of Thule products sold in North America are made in USA, and Thule employs over 1,000 American workers.

Product Reviews


Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

Thule® - Sonic Alpine Silver Cargo Box
Thule® - Sonic Cargo Box
Average Rating: 5 of 5
5 of 5
2014 Hyundai Santa Fe / Posted by (Cortlandt Manor, NY) /

The sonic looks great on my Santa Fe. I have been using it in the rain and it stays nice and dry inside. Locks work great, and dual side opening is a pleasure. There is plenty of space inside. I highly recommend this product!

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5 of 5
2005 Honda CR-V / Posted by (Lynnwood, WA) /

The Sonic L Cargo Box was all it is supposed to be and more. It was extremely well packed and shipped safely. Installation instructions were easy to follow. It easily mounted onto our Honda CR-V. Driving at highway speeds showed little change in the overall handling of our vehicle. It was invaluable in storing soft gear for our last camping trip. Overall, this box is a great value for our CR-V.

Was this review helpful for you? Yes1   people found this review helpful.
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Thule® - Sonic Alpine Silver Cargo BoxThule® - Sonic Cargo Box    
$78.95 - $558.95
52 reviews
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