Looking for Replacement Key/Lock Core for Thule GM Roof Top Cargo Box
Updated 09/15/2026 | Published 09/09/2026 >
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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.
Product Page this Question was Asked From
Universal Change Key for New Thule Locks
- Accessories and Parts
- Hitch Bike Rack
- Roof Bike Racks
- Roof Box
- Ski and Snowboard Racks
- Keys
- Thule
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