Fit Guide – Cargo Box Adapter Kits

The following list shows which boxes fit small, medium and large sized adapter kits.  Please contact us if you don’t see your cargo box:


  • Yakima:  Rocketbox Pro 11
  • Thule:  Ascent 1100, Frontier


  • Yakima:  Skybox 12, Rocketbox Pro 12
  • Thule:  Sonic Alpine, Force Alpine, Pulse Alpine, Sidekick, Atlantis 1200
  • INNO:  Stream Box


  • Yakima:  Skybox LOPRO, Skybox 16, Skybox 18, Skybox 21, Rocketbox Pro 14
  • Thule:  Hyper XL, Sonic XXL, Sonic XL, Sonic L, Force XL, Force L, Pulse XL, Pulse L, Atlantis 1800
  • INNO:  Shadow 18, Shadow 16, Shadow 15, Shadow 14, Flex Top Aero, Air Cruiser, Low Down Cruiser, Ridge Box, Stream Box M