What Thule Motion Cargo Box Fits My Thule Crossbars on My 2021 Jeep Grand Cherokee L?

Updated 07/12/2022 | Published 07/09/2022

Question:

I have purchased a Thule rack system for my 2021 Jeep Grand Cherokee L Summit Reserve. I want to put the cargo carrier Motion any model on the vehicle, but it will not fit. The length between the crossbars can only be a minimum of 27inch or a maximum of 40. What hard carrier will fit this application?

asked by: Zory S

Expert Reply:

If you have bar spread limits of a minimum of 27-40" on your 2021 Jeep Grand Cherokee L, you will be able to fit the following Thule Motion cargo box options on your roof:

- Thule Motion XT Rooftop Cargo Box - 16 cu ft - Black Glossy # TH629706
- Thule Motion XT Alpine Rooftop Cargo Box - 16 cu ft - Black Glossy # TH629506
- Thule Motion XT Rooftop Cargo Box - 18 cu ft - Titan Glossy # TH629807
- Thule Motion XT Rooftop Cargo Box - 18 cu ft - Black Glossy # TH629806
- Thule Motion XT Rooftop Cargo Box - 22 cu ft - Black Glossy # TH629906
- Thule Motion XT Rooftop Cargo Box - 22 cu ft - Titan Glossy # TH629907

Since you can adjust your crossbars within the requirements of these cargo boxes, you will be able to mount these to your Thule crossbars. Also, given the specs on your vehicle, you will be able to mount any of these boxes to your roof and still be able to fully open your trunk.

If it were me, I would go with the # TH629906 because it has the most cargo space available. Also, the black gloss coat provides you with a stylish accessory for your new Grand Cherokee L.