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Item # THU000T

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  • One Color, 2 Locks ($39.95)
  • One Color, 4 Locks ($46.95)
  • One Color, 6 Locks ($62.95)
  • One Color, 8 Locks ($78.95)
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Item # THU000T

Cheaper than replacing your equipment.

Thule Lock Cylinders are arguably the most important part of your rack, that is, the part that keeps all your gear safe and secure on the rack. Thule Lock Cylinders are designed in one size to fit many Thule rack parts, so if a situation necessitates new locks, you can buy one package of Lock Cylinders and lock your entire rack with a single key.

  • Available in one size
  • Compatible with Thule racks with lock cylinders

Tech Specs

Thule racks with lock cylinders
Part Number:
510, 512, 544, 596, 588
Recommended Use:
locking your gear
Manufacturer Warranty:

Reviews & Community


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Protect Your Goodies!

  • Familiarity: I've put it through the wringer

I've used my locks for over 3 years now and they've held up great. My rack is on year round so they've stood up to the elements really well. I've only had trouble turning them when I've misplaced the plate. Thule will also send you replacement keys if you lose any (at a price of course). Really that's my only problem, I wish they were a bit more affordable. But if they last the life of the rack I guess they were worth it. We'll see.

Necessary evil

  • Familiarity: I've put it through the wringer

These are ok, but wish they were not as expensive / included when you buy a roof rack. They've worked fine for me and I haven't had any issues with these seizing up, even after being caked in road salt in the winter. If you end up needing more locks than you bought in the first round, you can get extra locks directly from Thule that match the keys you already have, which is a nice touch. Also, if you lose a key or a lock cylinder you can get replacements from Thule as long as you have the number stamped on the key.

These things work fine and do exactly what they're supposed, just kind of a bummer that they aren't cheaper

They're pretty cool

  • Familiarity: I've put it through the wringer

They get the job done, and for that I am thankful. I have 10 of them on my roof for all sorts of Thule products and they all lock and unlock fine. After a couple weeks of use a couple of them stopped working as smooth as the others, but they still lock okay. Overall, I am a satisfied customers. I recommend them.

Lock it or lose it.

  • Familiarity: I've put it through the wringer

My favorite thing about the lock cylinders is the peace of mind I get knowing that my bikes are secure. It has gotten to the point where the bikes cost more than the vehicle they sit on top of so it's nice having solid locks in there. Very sturdy in a convenient location on the rack and I haven't had any problems with them.

My Thule Sidearm racks with lock cylinders installed. Very easy to install.

Lock it or lose it.

Don't Lose Your Keys!

  • Familiarity: I've put it through the wringer

When my rack is not in use, I leave the keys in the lock cylinder or tape them to the side of the box. Thule should write the word Thule on their keys instead of the generic number stamped on there. Easy to misplace or forget what they unlock!

Get 6 locks so you have only 1 key

  • Familiarity: I've put it through the wringer

If you planning to use it with Thule bike rack and Thule Root pack, I highly recommend to get 6 locks or more so you only have 1 key for the bike rack and the foot pack. I made mistake to get 4 packs for root pack and the purchase additional 2 for my bike carriers. They are not cheap.

can I get a key replacement if I give you...

can I get a key replacement if I give you the barrel key # N 776 ?

Not through Backcountry, no. You'll have to go through Thule directly. Here's the link.