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Thule 634B Sonic M

Attack the great outdoors in stealth and style with the Thule 634B Sonic M cargo box atop your vehicle. The high-gloss automotive shell adds great fit and finish while SecureLock ensures your equipment is always safe.  The Sonic's 13 cubic feet of space allow you to bring gear for the whole crew!

Availability: In stock




  • Finished in Glossy Black
  • 13 cubic feet of storage space
  • Dual-side opening for quick and easy loading/unloading from passenger or driver side
  • AcuTight mounting system produces an audible click when box is properly tightened and secured
  • Exclusive AeroNose design reduces drag and noise while driving
  • Oversized SecureLock system ensures a tight and secure closure
  • Fits Thule rack systems, round bars and most factory racks
  • Exterior Dimensions: 72" x 34" x 16"
  • Interior Length: 64" or 163cm
  • Maximum Ski Length: 158cm

Also available in Glossy Silver - Thule 634S Sonic M Cargo Box
NOTE: Cargo boxes must be shipped "Freight Carrier". Please allow up to 2 weeks for delivery


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Installation Instructions PDF
Thule 634B Sonic M

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