Air Brake Lock


4.95 out of 5

The Tractor Air Brake Lock protects idling and parked tractors from theft by completely and securely encasing the parking brake and trailer air valves.

Not compatible with Freightliner T600 (2015, 2016), Freightliner Cascadia (2016), International Pro Star (2016).



Weight 1.819 lbs
Dimensions 10 x 6.75 x 2.5 in
Key Options

, , ,


Die Cast Aluminum


One spray of Slick 50 One Lube every 90 days, or when needed. WD40 is NOT recommended and will have an adverse affect on your lock.

Optional Use

Lock-Out Tag-Out and Maintenance, Reusable




Hardware included

Use Our Tractor Air Brake Lock To Protect Your Unattended Tractor

The tractor air brake lock protects idling and parked tractors from theft by completely encasing the parking brake and trailer air valves.

Tractor Air Brake Lock Exterior

The WAR-LOK Air Brake Lock is made of die cast aluminum, thus making it nearly impenetrable.

Tractor Air Brake Lock Interior

This tractor lock completely covers a tractor’s air valve knobs. Equally important, it’s fortified exterior comes complete with two internal disks that will detach and spin if a thief attempts to drill into the lock. Additionally, like all WAR-LOK products, the Air Brake Lock comes with a nine-cylinder disk locking mechanism, making it nearly impossibly for a thief to pick your lock.

Keyed Alike Tractor Air Brake Locks

Air Brake Locks can be keyed differently, keyed alike, or keyed alike to a master key. Furthermore, newly purchased locks can be keyed alike to an existing lock. Ownership will be verified by WAR-LOK before any key is copied. Not to mention, our keys are cut at our WAR-LOK Assembly Shop, located in Dallas, Texas, USA.

Customers' review

Rated 4.71 out of 5 stars
21 reviews
5 stars 19 90 %
4 stars 1 4 %
3 stars 0 0 %
2 stars 0 0 %
1 star 0 0 %

21 reviews for Air Brake Lock

  1. w.tindall@yahoo.com
    5 out of 5

    Great lock Awesome extra security lock!

  2. drreid.subs@gmail.com
    5 out of 5

    Terrific truck lock This air brake lock is without peer and will secure the truck with ease. It is extremely well made, easy to apply, and may be ordered keyed alike to other War-Lok locks whether at the same time or later. Very sturdy, substantial lock. Dave Reid

  3. chloechavez@gmail.com

    Hi Tony, If you haven't already, we recommend using a desktop computer to upload your photo. The upload feature isn't available on mobile or tablet, unfortunately. If you still have issues uploading, you can email the photo to us directly at info@war-lok.com Thank you!

  4. tjm92345@gmail.com
    5 out of 5

    Life Saver I attempted to put a picture but it didn't take it here is my second attempt of my comment I made below lifesaver

  5. tjm92345@gmail.com
    5 out of 5

    Life Saver This is definitely a lifesaver they attempted to steal my truck they try to pry it with a screwdriver and realize with the amount of damage they will cause and too much time lost they will not get the truck so they just stole what's inside the truck. I will always do business with this company and I highly recommend them for their fantastic products

  6. jasoncrzytrkr@aol.com
    5 out of 5

    UPDATE: The customer service is awesome and contacted me to purchase the kit case separately which I did and it was waiting at the house when I finally got home! Awesome! Thanks so much for helping me out!

  7. bignoisy@gmail.com
    5 out of 5

    This air brake lock provides excellent peace of mind. It is well designed, built like a tank, and trouble-free. The lock includes shims to fine tune the fit, but weren't needed in my case; the lock fits my brake valves like a steel glove. Also, since all my Warlok products are keyed alike it's only necessary to keep track of one key. Highly recommended.

  8. michaelgibbons@dadeschools.net
    5 out of 5

    Our school bought 12 locks after two of our trucks were stolen over a long holiday weekend. We had another attempt to steal a truck several months later. A few trucks were damaged in the attempt to remove the air brake lock, one broke the valves off. None of the trucks were able to be driven away.

  9. jasoncrzytrkr@aol.com
    5 out of 5

    I am a company driver and my company uses a bar and padlock to lock out steering knuckle which requires me to open the hood every time but I've had this for about 8 years??? Can't remember really but it's saved me a TON of time and I feel much more secure in leaving the tractor to go in for extended periods for showers and such. Highly recommended. I only wish I could buy the blow molded kit case separately because I also have the War-lok glad hand lock and kingpin lock & one padlock here in the truck but all were not bought in the kit. Please make that available!!! I need one!

  10. onefast3k@gmail.com
    5 out of 5

    Used for about a year, worked great. Nice to have when you have opti-idle to let on while you are not in truck.

  11. kit.bucy@nattinc.com
    5 out of 5

    Great product for Dealers that need to lock down a truck in high risk areas.

  12. sharon@wcoastskr.com
    5 out of 5

    Tractor Air Brake Lock is a quality item. A thief would not be able to remove this without a key in my opinion. My first truck was a 2000 Freightliner Century, and the lock fit great and was easy to apply. Unfortunately, the Air Brake Lock will not go over brake valve knobs on my 2016 Cascadia because the dash face behind the knobs has a slight curve.

  13. Jordanoatsenterprises@gmail.com
    5 out of 5

    Great Product for when you're away from your truck and you want your truck to be secured.

  14. skeeter@sawmilltruck.com
    5 out of 5

    This thing is great. You would have to destroy the truck to remove this thing. The key would be hard to copy, looks like a cross between a golf tee and a skeleton key.

  15. skscottlogistics@icloud.com
    5 out of 5

    This is a rock solid lock. I use it every time I leave my truck. Even when I pull forward from the fuel pump. I let my truck idle, apply the lock and go inside to grab a coffee, use the restroom, etc. when I take home time, I sleep like a baby knowing that my truck is parked at the truck stop safe and secure. Spend a few more dollars for this one and leave the plastic junk on the shelf.

  16. jphowe32177@yahoo.com
    4 out of 5

    One of the best ways to secure a tractor and trailer. I used one of these for years and the only downside that I experienced was that it was a little awkward installing it with the switches that I had for my trailer dump valves. A great product.

  17. joshp@tsiwesternstar.com
    5 out of 5

    These are great locks we have used them for many years to secure trucks on our lot.

  18. dldayllc@yahoo.com
    5 out of 5

    Works great

  19. dmckinnons@gmail.com
    5 out of 5

    Used for two years on the road. Great product.

  20. steveadkins69@gmail.com
    5 out of 5

    I love this product. I bought a pair of them for my drivers. We work for a company that slip seats trucks. This allows us to lock them up at the terminal and know that when we come back our truck will still be there

  21. Mohavewood@frontiernet.net
    5 out of 5

    This on my brake valves if someone whated to sell my truck it would be almost impossible to do so.

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Installation & Removal

TAB-Installation-DiagramThe WAR-LOK Truck Air Brake Lock is designed to fit standard air brake controls. Due to the various sizes and types of knobs used on truck brake control valves, please follow this procedure to set your Truck Air Brake Lock for the valve knobs in your vehicle.

1. Ensure that the vinyl tips are installed on the allen set screws.
2. Using the 1/8″ allen wrench provided, adjust until the vinyl tip is touching the back of the knob. (This is a one time adjustment.)
3. If you are using the standard red and yellow knobs, install the self stick foam pads in the inner body.
4. If you are using the large chrome knobs, discard the foam pads.

To install the lock:
1.  Slip one half of the lock around the valve knobs.
2. Slide the other half in place until the two halves are together.
3. Push the lock button in to secure the lock.

To remove the lock:
1. Insert the key into the lock cylinder and turn clockwise approximately 3/4 turn. The lock cylinder will spring extend to release the lock.

Return Policy

You may return your purchased products within 30 days from the ship date for a full refund or exchange. WAR-LOK will cover additional shipping costs to correct any mistakes it has made in fulfilling an order.

In the event you are unsatisfied with your purchase, returns may be subject to a restocking fee up to 25% of the purchase price.