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Thule One-Key System Lock Cylinders - Qty 2
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Thule One-Key System Lock Cylinders - Qty 2

Item # TH450200
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This kit lets you add new locks or replace existing cores for all your Thule products. These keyed-alike cylinders let you lock your racks, accessories, and other gear with one key. Extra-thick tumblers help prevent forced opening. 1-800-940-8924 to order Thule accessories and parts part number TH450200 or order online at Free expert support on all Thule products. Guaranteed Lowest Price and Fastest Shipping for Thule One-Key System Lock Cylinders - Qty 2. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (449)
  • Q & A (0)
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  • Why etrailer?

Thule Accessories and Parts - TH450200

  • Hitch Bike Racks
  • Roof Bike Racks
  • Roof Box
  • Roof Rack
  • Ski and Snowboard Racks
  • Lock Cores and Cylinders
  • Keys
  • Thule

This kit lets you add new locks or replace existing cores for all your Thule products. These keyed-alike cylinders let you lock your racks, accessories, and other gear with one key. Extra-thick tumblers help prevent forced opening.


  • 2 Lock cylinders let you make all your Thule accessories keyed alike
    • Replace existing Thule locks or add new locks to racks, carriers, and other gear
  • 2 Premium, over-molded keys are comfortable to grip and easy to identify on your key chain
  • Universal master key lets you remove existing Thule lock cores and install new ones
  • Enhanced security with extra-thick tumblers and long protrusions
    • Helps to prevent forced opening with screwdriver or like device
  • 2-Year limited warranty

Note: Key numbers should be recorded on Thule's product registration page and written down in the space provided in the One-Key System manual.

Key Number location

Thule's One-Key System makes it easy to secure all of your Thule racks, accessories, and other gear with just a single key. This kit includes 2 keyed-alike lock cylinders that are designed to mount in the empty lock core sockets of your Thule rack or to replace your rack's existing cores. It includes 2 over-molded keys that are comfortable to grip and easy to identify on your key chain, and 1 universal master key for adding or replacing lock cores.

Thule Traverse foot pack accepts OKS cylinders

Many Thule products - including roof rack feet - come ready to accept One-Key System cylinders. Just pop out the plastic lock plug, then use the included universal master key to install the new core in its place.

Thule Flat Top ski carrier accepts OKS cylinders

To replace an existing lock core simply unlock it and use the included master key to remove it. Once the existing core has been removed, pop in the new One-Key System lock.

450200 Thule One Key System Lock Cores with Keys - 2 Pack

Replaces Thule TH512

Customer Reviews

Thule One-Key System Lock Cylinders - Qty 2 - TH450200

Average Customer Rating:  4.9 out of 5 stars   (449 Customer Reviews)

This kit lets you add new locks or replace existing cores for all your Thule products. These keyed-alike cylinders let you lock your racks, accessories, and other gear with one key. Extra-thick tumblers help prevent forced opening.


I purchased a used Thule roof box which the previous owner had lost keys for the lock. These lock cylinders worked perfectly and were very easy to install.


Great service from Etrailer on every item I have ordered from them. 2 hitches and a bike rack. Customer service is VERY good in todays world. They have not outsourced customer service! Thank you for that!


Awesome,Keep my records cause for sure Im gonna add more thules key.thank you very much.


Used it for my Thule cargo box and couldn’t be happier perfect fit and super easy installation thank you


I gave your company and especially the sales associate Samantha a diamond star rating for being able pull off for me what many other store and dealers claim was impossible at the time which was acquiring my Thule roof rack system. I am now ready for my kayak fishing season thanks to your team. When the shopping gets tough, find it on etrailer!


Lock cylinders arrived quickly and were exactly as described. Thule products are well made and fit perfectly in my existing system.


Works perfectly on my Thule Wing Bar Evo racks. Feel better knowing that I'm protecting my investment.


These are great just hate that Thule over charges for these things funny how the more you larger lock cylinder pack the price per cylinder drops dramatically.


The key cylinder fit perfect into my Thule T2 Classic 2 bike hitch. It works well. I feel my bike is secure with this new addition.


Upgraded my older T2 with a set of longer arms, and added this lock set while I was at it. Installation was a breeze, and now I can leave the cable lock at home.


The keys are very hard to insert. One has constantly been stuck and won't turn to lock.

It could be a couple of issues causing the keys to be hard to . It could be a contaminated lock core dirt or salt in the cylinder, to fix flush with lock lubricant. It could be a key that is rough cut, that would would need to be wire brushed or sanded. It could also be installed incorrectly.
Thomas M - 12/18/2021


Have not used yet as we found the key to the lock after the order was placed. Keeping as spare should the locks need replacement later.


Great product. My only concern is that the locks came with no instructions. I found how to install them in the instructions for the Thule bike rack. If I had simply purchased the locks, then I might have been a little frustrated.


This is just what we needed and it was easy to install. Your website made it very clear on how and what we should order for particular problem. I have no doubt will use you in the future.


Easy to install and worth the price for the security you get from locking your rack to your car.


My 2 piece lock set was in stocks. It arrived on the date I was given. It was easy to install. Good communication from the seller on my order status.


fast delivery and an easy install.


Easy to install fit perfect


They were very prompt with letting me know that the locks for a Thule bike rack were not in stock and provided options. When I chose to wait the additional one to two weeks, they were very responsive with updates right up until they were delivered.


Easy to install.


Had to drill out my locks as the previous owner broke both keys in the lock. Replacement was simple afterward and they work without issue.


Exactly what I needed. Good quality . Great service


Installed today. Installation was extremely easy. It took about one minute per lock to install.

The locks are easy to use and have been effective. They work flawlessly and as advertised.
Steven L - 06/28/2021


Easy to install, works as intended!


very easy to install, works perfectly

Show More Reviews

Ask the Experts about this Thule Accessories and Parts

  • Recommended Lock Kit For A Thule 650 Adventurer Roof Box
    The One-Key System Lock Cylinders # TH450200 will definitely be a good replacement for your Thule Adventurer roof box. This will include 2 lock cores for the 2 buttons, 2 keys, and a master key that will get the cores secured into the roof box.
    view full answer...
  • Replacement Lock Cylinder And Key SportRack Aero1300 Rooftop Box
    A Thule lock cylinder can replace the lock cylinder on your SportRack Aero 1300. Unfortunately, the Thule lock cylinders only come in multiples of two. The part you need is the Thule One-Key System Lock Cylinders - Qty 2, part # TH450200. This part comes with two lock cylinders, two one-key system locks, and one Thule Universal Change Key for Thule One Key Locks. To change out your Thule lock cylinder your box needs to be unlocked. Once unlocked you can remove the existing lock cylinder...
    view full answer...
  • Can Thule Same Key System # TH450200 Replace Lock Cylinders of Thule Cargo Box
    You could use the Thule One-Key system part # TH450200 to replace the lock cylinders of your cargo box. It comes with a key to remove the old lock cylinders and install the news ones.
    view full answer...
  • Replacement Lock Core and Keys Recommendation for an Older Thule Mountaineer
    As long as the box isn't damage you could install a new lock core with the part # TH450200. You would just need to slide the included change key into a lock cylinder and then slide the cylinder into the box.
    view full answer...
  • Replacement Thule Keys and Lock Cores to Replace Damaged Core
    To replace the lock cores and give you new keys for your Thule carrier you would want the part # TH450200. This comes with two new cores, two keys, and a change key.
    view full answer...
  • Replacement Locks for Thule Excursion Rooftop Cargo Box TH624
    You can replace the lock core in your Thule Excursion rooftop cargo box using their One-Key System Lock Cylinder Kit # TH450200. This kit includes 2 lock cylinders, two keys plus the universal control key that will be used to remove the old core and install the new one. Please refer to the linked video for more.
    view full answer...
  • Replacement Lock And Keys For Sportrack Horizon Roof Box
    The replacement lock and key you can use with your Sportrack Horizon roof box is part # TH450200. This kit included 2 lock cores, 2 keys and a universal key to swap the lock out.
    view full answer...
  • How to Replace Lock Core in Thule Roof Cargo Box When Lock Number Isnt Readable
    If you cannot make out the number stamped into the face of the lock, your best bet would be to have a locksmith pick the lock for you. Once it's unlocked, you can use a replacement lock core, like the one included with part # TH450200 to replace the existing core. The kit includes the change key used to remove the existing lock core, as well as two replacement cores and two keys. You'll want to write down the new key number and keep the number in a safe place.
    view full answer...
  • Do All Thule Cargo Boxes Uses the Same Locks
    The majority of Thule Cargo Boxes you can add locks to by obtaining lock cores, the Thule One-Key System part # TH450200. However, this is not the case for every Thule Cargo Box so I would really need to know exactly what model you have in order to recommend the correct locks for it. If you look on the inside of the box for a sticker that would then have the model number that I can use to make sure you get the correct locks.
    view full answer...
  • Troubleshooting a Thule Helium 2 Bike Rack Stuck in Trailer Hitch
    The Thule Helium can be a little tricky to operate its anti-rattle and anti-theft knob, because of the construction. First thing you'll want to try is locking and unlocking the bolt a few times, or trying to spin the key in the locked position. Sometimes during installation, this gets turned 90 degrees and will behave counter to the printed images. Next, you'll want to try lifting up a little on the rack when you try to turn the knob. The anti-rattle works off of pressure, and sometimes...
    view full answer...
  • Replacing the Lock on a Sport Rack Aero 1300 Roof Mounted Cargo Box
    Unfortunately to remove the lock as pictured will require a locksmith or removing the internal lock assembly by unscrewing it from the inside of the box. After that, you'll want to order part # TH450200 which will be the replacement lock core for this box. It will include two lock cylinders, two keys, and a change key so you can replace all of the locks on the box.
    view full answer...
    Image 1 for
  • Replacement Key and Lock Cylinder for a Thule Polar 200 Roof Box
    You'll likely need to replace the entire cylinder by temporarily uninstalling the lock housing so you can attempt to remove the broken key. To replace, you'll order part # TH450200. This will come with two cylinders, two keys and a change key. This ends up being cheaper and easier than individually ordering the lock, cylinder and change key. If you're unable to remove the broken key from the lock with pliers, you may be able to disassemble the lock housing to remove the core.
    view full answer...
  • Replacement Key for a Sears Rooftop Cargo Box, Cylinder # 2856
    We have a replacement, but core 2856 is no longer available. Part # TH450200 to replace your lock core and keys with a matching set. This kit also includes the change key you'll need to fully swap your locks with new keys.
    view full answer...
  • Replacement Locks and Keys for Sport Rack Cargo Box with Cylinder # 2808
    I have a solution for you, however Cylinder 2802 is no longer available. You can, however, completely replace the locks with a new set wtih part # TH450200, which is a new pair of lock cores with two keys and the control key for you to remove and switch out the existing locks with the new set.
    view full answer...
  • Replacement Locks and Keys for SportRack Horizon 7016 Cargo Box
    For your SportRack Horizon 7016 Cargo Box, you can use the Thule One-Key System Lock Cylinders # TH450200 to replace the existing lock cores on your box. Thule is the parent company of SportRack and these will be compatible with your Horizon Cargo Box. This will include 2 keyed-alike lock cylinders as well as 2 keys.
    view full answer...
  • Replacement Lock Core For Thule Evolution Roof Cargo Box
    The lock is not an item that is offered by Thule. If you have the lock and just need a new lock core you can order part # TH450200. This comes with two lock cores and two keys. Since this roof box is no longer available I cannot say it will definitely work with your crossbars. The best way to find out is to do a trial fit before ordering the replacement lock cores.
    view full answer...
  • Adding Lock Cylinders to a Thule Adventurer Cargo Box
    The Thule One-Key System Lock Cylinders - Qty 2, # TH450200, can be added to your Thule Adventurer cargo carrier. The lock kit will include 2 lock cylinders, 2 keys, and a master key that will allow you to install and remove the lock cylinders.
    view full answer...
  • How to Remove Lock Cylinder in Thule Snug Tite Hitch Lock When Locked and No Key
    Without a key and the lock unlocked removing the lock cylinder will involve having the lock drilled out and then replacing the cylinder. A locksmith will be able to drill the lock cylinder for you. The Thule One-Key System Lock Cylinders, # TH450200, will give you two lock cylinders, two keys, and a change out key. This set will replace the lock cylinder in the hitch lock.
    view full answer...
  • Tips for Removing Stuck/Broken Key from Thule Roof Cargo Box
    I spoke with my contact at Thule, and she did have a few suggestions for you to try. She said some people have had success retrieving broken keys using a paperclip. Try wiggling the key out using the paperclip along the ridged side of the key. I have had luck in the past using dental picks to work broken keys out of a lock cylinder. If enough of the key stem is protruding from the lock, you could also try grasping the key with needle nosed pliers and removing it that way.
    view full answer...
  • Lock Kit Recommendation for Thule T2 Classic Bike Rack
    The locking hitch pin of the Thule T2 Classic part # TH9044 or # TH9044-TH9046 comes with a lock core. You'd want the part # TH450200 to give you the two additional lock cores for the arms of the rack and then you'd be set.
    view full answer...
  • Is It Possible To Put the Key In a Thule Cargo Box the Wrong Way
    I don't think it is possible for the key to be inserted into the lock core the wrong way but it is possible that some dirt has gotten inside the lock core which is then not allowing it to turn. I recommend you apply some pressure to the key while turning as well as spraying some lube inside the lock core. If all else fails and you can't get the key out then you will just need to drill out the lock core and replace it with the Thule One-Key System Lock Cylinders part # TH450200. If you are...
    view full answer...
  • Lock Kit Recommendation for Thule Sidearm Roof Bike Rack
    The lock kit you want for your Thule Sidearm bike rack part # TH594XT is the Thule One Key kit part # TH450200 which comes with the two lock cores you'd need to lock the rack to a set of crossbars and a bike to the rack.
    view full answer...
  • Tips for Removing Damaged Lock Core of Sears Cargo Box with Stuck Key
    If you drilled the lock core then I'd imagine it is most likely damaged beyond repair at this point. Getting the lock core out now that it's permanently damaged will be difficult. You can continue drilling it till it's totally destroyed and able to be pulled out or you could take it to a locksmith to have them advise you on the best approach considering it's current situation. Then for a kit to give you a new set of cores, keys, and change keys we have the Thule kit part # TH450200 that...
    view full answer...
  • Replacement Lock Cores for Thule Cargo Box
    It sounds like you are just needing a new lock cylinder for your Thule Cargo Box. If this is the case, then you can use the Thule One-Key System # TH450200 that includes two lock cores and two matching keys. I have attached an installation video on the lock core that you can also check out. If you still have the keys and are able to tell me the number that is stamped on them, I can also see if we have a replacement cylinder available that will work with your existing keys.
    view full answer...

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Info for this part was:

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