Replacement U-Bolt Kit for Thule Evolution Cargo Box to Fit on 3-3/4" Crossbars
Updated 09/26/2025 | Published 04/19/2025
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Question:
I have a Thule Evolution with ubolts that have a 3inch space. Ive changed vehicles and now have a Kia Sorento with a 3-1/2inch wide bar that the carrier will attach to. Does Thule make a ubolt and quick snap for a 3-1/2inch bar that I can switch out to?
asked by: Blair
Expert Reply:
Hey Blair. I do have a replacement u-bolt kit that will work with the Thule Evolution that fits 3-1/2" crossbars. It is the Replacement Hardware Kit for Searsbox Cargo Box item # TH05603. These u-bolts measure 3-3/4" wide by 2" tall.
If you have to move the mounting locations, you can drill new holes and then use gasket sealant item # LT37467 to seal the other holes.
If you have any additional questions feel free to throw them into the comment box below.
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Product Page this Question was Asked From
Replacement Hardware Kit for Searsbox Cargo Box
- Accessories and Parts
- Roof Box
- Mounting Hardware
- Thule
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Jerred H.
9/26/2025
Hey Blair, did the replacement u-bolt kit work out for your Kia Sorento's crossbars? I'm asking because your experience could help others in a similar situation.