Will the Thule Motion 3 Low Profile Rooftop Cargo Box Fit GM OEM Crossbars?
Updated 11/17/2025 | Published 12/17/2024
Question:
Confirm 2021 GMC Denali with OEM GMC cross bars - the Thule Motion 3Low Profile - 14 cu ft will fit. Thanks and great web site jfs
asked by: Joseph S
0
Expert Reply:
Hey Joseph! I can confirm that the Thule Motion 3 Low Profile Rooftop Cargo Box item # TH47PN will indeed fit the OEM crossbars on your 2021 GMC Denali. You'll just want to make sure your crossbars are spread between 21-13/16" - 36-9/16".
expert reply by:
Jerred H
0
Product Page this Question was Asked From
Thule Motion 3 Low Profile Rooftop Cargo Box - 18 cu ft - Black Glossy
- Roof Box
- Aero Bars
- Factory Bars
- Round Bars
- Square Bars
- Extra Extra Long Length
- Low Profile
- Extra Large Capacity
- Dual Side Access
- Black
- Thule
more information >
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Jerred H.
11/17/2025
Hey Joseph, how did the fit turn out with the Thule Motion 3 Low Profile cargo box on your Denali’s crossbars? Your feedback could really help others looking at the same setup.