Hardware to Adapter Thule Weekender 627 to 2020 Subaru Outback Factory Crossbars
Updated 10/30/2025 | Published 02/18/2025
Question:
We have a Thule weekender 627 and a Subaru 2020 outback with stock cross bars. The hardware it came with to mount is too small for our bars. Is there a replacement that would fit my rack on the market?
asked by: Miranda S
Expert Reply:
Hey Miranda! The only way to mount your Thule Weekender 627 on the Subaru factory bars is to use the Replacement QM3 - Quick Mount Hardware # TH04997. Installation of the kit will require modifying the mounting holes but it isn't a difficult task. The only other solution is to replace the roof box but I'm sure you would rather use what you have since that is quite the investment. I attached a review below along with some pictures from another customer who made this modification to their Weekender.
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Product Page this Question was Asked From
Replacement QM3 - Quick Mount Hardware - for Adventurer Cargo Box
- Accessories and Parts
- Roof Box
- Mounting Hardware
- Thule
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Robin H.
10/30/2025
Hey Miranda, how did things go with the QM3 quick mount hardware on your Outback’s factory bars? Were you able to make the modification and get your Weekender box mounted securely? Your update could make it easier for the next person with the same setup.