Availability of T-Track Adapter for Thule 669ES Mountaineer ES
Updated 12/15/2025 | Published 11/03/2024
Question:
Im considering the rhino 71inch vortex cross bars t slot mounted to a retrax pro xr tonneau. I might buy an older thule 669es to mount to rhino bars. Will this kit make that happen?
asked by: Brian
Expert Reply:
Hi Brian; the T-Track Adapter for Thule Cargo Boxes with PowerClick # TH27PQ is designed for roof boxes with PowerClick. The Thule 669ES Mountaineer ES uses EasySnap mounts which Thule does not make an adapter for. You can probably make these mounts work with the T-track in the crossbars but it will require modifying the roof box to install them. If you aren't comfortable with doing that I would consider a roof box like the # TH6358B instead.
Product Page this Question was Asked From
T-Track Adapter for Thule Cargo Boxes with PowerClick
- Accessories and Parts
- Roof Box
- Adapters
- Thule
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Robin H.
12/15/2025
Hey Brian, how did things turn out with the Thule 669ES on your Rhino crossbars? Your update could make it easier for others trying to mount an older box to a T-slot setup.