Will Thule Quick Grip Mounting Assembly Fit with Mercedes-Benz Cargo Box

Updated 07/04/2026 | Published 09/02/2022

Products Featured in This Question

Replacement Quick Grip Mount Assembly - Thule Ascent, Atlantis, and Force Cargo Box - Qty 1

(347)

$54.55

Replacement Slide Strip for Thule Evolution Cargo Box

(18)

$7.79

Replacement Thule AcuTight Cradle for Thule Roof Mounted Cargo Boxes

(526)

$20.74

Question:

Jon, See attached

asked by: Peter

Expert Reply:

Would you be able to send me some photos of your roof box and the area where the mounting hardware is installed? If you have a newer Thule/MB cargo box then the Replacement Quick Grip Mount Assembly # TH05738 should work but if I could see some photos I would be able to confirm.

expert reply by: Jon G

Underside of Mercedes-Benz Cargo Box
(click to enlarge)

Mercedes-Benz Cargo Box
(click to enlarge)

Inside Mounting of Mercedes-Benz Roof Cargo Box
(click to enlarge)

Peter

9/2/2022

Jon, See attached

Jon G.

9/2/2022

Thank you for the photos! From what I'm seeing it does look like the Quick Grip Assembly # TH05738 will work when paired with the Slide Strip # TH05401 and the AcuTight Cradle # TH8523387001. The Slide Strip will be placed over the opening slits in your cargo box and then you'll drop the Quick Grip claws down through the inside of the box and secure it using the AcuTight Cradle from underneath the box.

Ed R.

7/4/2026

@JonG do you know if this worked out for Peter? I have a Mercedes branded roof box 400 and it has the same sliding t-bar setup. My 2020 Outback has the OEM integrated crossbars and I need a different solution. The Subaru bars are 2 1/4 wide. Will these clamps work for that or are there other clamp styles you would recommend? Thank you

7/4/2026

@JonG would TH34FR37ZC be an option? Is the PowerClick the same or better than the Quick Grip claws? Thank you for the assistance.