Looking for Replacement Key/Lock Core for Thule GM Roof Top Cargo Box

Updated 09/15/2026 | Published 09/09/2026

Products Featured in This Question

Universal Change Key for New Thule Locks

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$11.65

Replacement Key for Thule Racks and Carriers - N119

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Replacement Lock Cylinder for Thule Racks and Carriers - N119

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Question:

I have what appears to be a Thule/Gm rooftop cargo box that I purchased used with no key, the lock itself is scratched so no number can be found, but it is unlocked. Can you recommend a replacement?

asked by: George E

Expert Reply:

Hey George, if you are sure it is a Thule box and it is currently unlocked you can use the Thule change key part # TH42BJ to remove the core. I would try this first as this will verify that it is for sure a Thule lock core. Once removed you can then use a replacement lock core like the part # THLOCKN119 with the matching key part # THKEYN119 and you would be set.

expert reply by: Jameson C