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 >
Continue Researching
- Q&A: Will Thule Motion 3 Cargo Box Fit 2016 Subaru Outback and 2023 Toyota RAV4 TRD
- Q&A: How to Determine if Thule Motion 3 Low Profile Cargo Box Lets Hatch Open Fully
- Q&A: Using Hub Centric Rings on Trailer Wheels
- Q&A: Is There an RV Roof Vent Assembly that Can be Thermostatically Controlled
- Article: Best Hitch Cargo Carriers
- Article: Winter Vehicle Preparedness: 5 Tools to Stay Ready
- Q&A: Do Yakima Roof Cargo Boxes Have Weight Capacities
- Q&A: What Size Snowboards Will Fit In The Inno Box 320 Rooftop Cargo Box IN94FR?
- Q&A: Will Thule Motion 3 Hold Skis and Other Equipment on 2024 Subaru Forester Wilderness
- Article: Rooftop Cargo Carriers
- Article: Roof Rack Information
- Article: Thule AeroBlade Sizing Dimensions
- Article: Our Team Picked The Best Camping Gear of the Year - Here Are Their Top Choices
- Article: Best Vehicles to Flat Tow Behind an RV
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.