We can't say, unfortunately because we don't have that roof box around to use for testing purposes. If you already have the roof box, take a quick measurement of how much space the mounting clamps allow. The Monkey Bars are 1-1/4 inch in diameter, so as long you can clear that, everything will play nicely together..... www.etrailer.com/Roof-Rack/SeaSucker/SEA99FR.html