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BOLT Trailer Hitch Receiver Lock for 2" and 2-1/2" Hitches - Codes to Late Model GM Key

BOLT Trailer Hitch Receiver Lock for 2" and 2-1/2" Hitches - Codes to Late Model GM Key

Item # BL7018446
Our Price: $35.99
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This 5/8" diameter receiver lock codes to your vehicle's ignition key. Made of automotive-grade materials and nearly impossible to pick or bump, this corrosion-resistant lock helps keep your ball mount safe and secure. 1-800-940-8924 to order Bolt bolt locks part number BL7018446 or order online at Free expert support on all Bolt products. Great prices and Fastest Shipping for BOLT Trailer Hitch Receiver Lock for 2" and 2-1/2" Hitches - Codes to Late Model GM Key. BOLT Locks reviews from real customers.
  • All Info
  • Reviews (54)
  • Q & A (0)
  • Photos
  • Why etrailer?

Bolt BOLT Locks - BL7018446

  • 5/8 Inch Receiver Locks
  • Bolt

This 5/8" diameter receiver lock codes to your vehicle's ignition key. Made of automotive-grade materials and nearly impossible to pick or bump, this corrosion-resistant lock helps keep your ball mount safe and secure.


  • Hitch lock is used in place of a standard pin and clip to prevent theft of your ball mount or hitch-mounted accessories
  • Lock uses your vehicle's ignition key - you'll always have the right key with you
    • Insert your ignition key into the BOLT cylinder
    • Turn the key once
    • Lock is permanently coded to your key
  • 6-Plate tumbler sidebar prevents picking or bumping
  • Automotive-quality lock is durable and weatherproof
    • Cast zinc cylinder offers superior corrosion resistance
    • Stainless steel lock shutter keeps out dirt and moisture
    • Durable, easy-to-grip hard rubber casing protects lock
    • Attached hard rubber dust cover protects lock face
  • Lock cylinder attaches to shaft with double ball bearing locking mechanism
    • Locks automatically when key is removed
  • Stainless steel pin shaft is rustproof


  • Application: 2", 2-1/2" (Class III, IV, and V), and 3" trailer hitch receivers
  • Maximum gross towing weight: 16,000 lbs
  • Maximum tongue weight: 1,600 lbs
  • Pin diameter: 5/8"
  • Limited lifetime warranty

Note: BOLT locks permanently code to only 1 vehicle. They cannot be re-coded or re-keyed.

Key Compatibility

Diagram showing compatible key styles

BOLT Locks for Convenience and Security

Are you tired of carrying a bulky ring of keys - for your hitch lock and coupler lock, your pickup cover or trailer door, and all the various padlocks securing your equipment? Tired of fumbling for the right key or having to replace a lost key?

BOLT (Breakthrough One-key Lock Technology) has solved that problem by designing a line of locks that can operate with a key you already have handy - your vehicle ignition key.

When you insert your own key into the cylinder, spring-loaded plate tumblers move up and down until they are matched exactly to that key. The first time the key is rotated, the cylinder is uniquely coded to that key. When the key is removed, the cylinder moves into the locked position. When the key is turned again, it will rotate to the unlocked position.

BOLT for Commercial Applications

BOLT is particularly useful in commercial applications. Imagine being able to send a crew without having to sign out multiple keys for a work truck, trailer, hitch pins, and equipment locks. With BOLT, the vehicle key becomes a master key. It opens all those locks and you no longer have the hassle of getting to a work site only to find that you've brought the wrong keys.

7018446 Strattec Programmable BOLT Hitch Receiver Lock - GM Late Model

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

BOLT Trailer Hitch Receiver Lock for 2" and 2-1/2" Hitches - Codes to Late Model GM Key - BL7018446

Average Customer Rating:  4.8 out of 5 stars   (54 Customer Reviews)

This 5/8" diameter receiver lock codes to your vehicle's ignition key. Made of automotive-grade materials and nearly impossible to pick or bump, this corrosion-resistant lock helps keep your ball mount safe and secure.

2008 GMC Sierra

I never thought much about locking my trailer hitch but since I leave my bike rack unattended at places along my cycling route and they are not cheap, I thought maybe it would be a good idea. This is a really neat answer to this problem as I don't have to carry an extra key and this seems to be very heavy-duty.


Does not work with my 2018 Chevy Silver ado

I show that the Bolt lock that would work with the 2018 Chevy Silverado 1500 would be part # BL7023582
BOLT Trailer Hitch Receiver Lock for 2" and 2-1/2" Hitches - Codes to GM Center Cut Key
-- Etrailer Expert Jenny N - 04/19/2022


Every time I purchase a new vehicle, I get a set of BOLT locks for it. Hitch pins, a couple of locks and any other products I might need. These are great products from a great company. Great customer service. I once put the wrong hitch pin on the wrong vehicle and had to change hitche away from home. Totally my fault. I cut the pin to remove the hitch. Called them to order a new replacement pin and they replaced it for free.

Still great locks and I buy everything they make that I can use.
Steven C - 02/28/2021


I haven't had it long, but initial impression is great. The rubber seems to seal the lock well against the weather, so hopefully it lasts many years. I love not having the extra key. Super easy to code my key to it.


Thanks works just as advertised. It's coded to my ignition key now. Shipping was quick I believe came a day before promised. Thanks so much.

Just Great-One Less Key To Carry
Michael - 08/27/2021


I researched receiver locks and found this model to be the most resilient to removal. There is a video on the web which I'm sure was produced by the manufacturer which shows other locks easily broken off with a piece of pipe. While no lock is 100% this is heavy duty and it keys to your ignition key during the first use. Be sure to order the correct one! I figured the "late model GM" would work as I could not find a link for the "GM center cut" key but the center cut key is on the etrailer website. Thank goodness I tried testing the key BEFORE I locked my hitch in place!!!! A word of caution.. if you order the wrong lock and try using the wrong key you may render the lock useless and not eligible for refund. I have sent my original lock back to etrailer and they will determine if it is eligible for refund. If it isn't, this will now be a $70.00 lock due to additional shipping fees and being a non-returnable item!


I like the product that it takes the key that fits the truck, you always have that key with you. The only problem that I have is that the lock part is to big, once I got it installed to lock in the receiver it covers up the hole where I connect the safety chain on that one side. I now have to loop the chain under the trailer to connect it to the other side of the receiver.

2011 GMC Sierra

Great product. Easy to code the key. Had it on my truck locking my hitch to the truck in less than 5 minutes.


I bought this after reading lots of reviews and I absolutely love it. The fact that your ignition key can unlock it is perfect for those who want to minimize the amount of keys you have. I love the quality and the thick rubber coating seems to want to withstand the harsh weather here in the Pacific NorthWest. I would highly encourage anyone wanting to have less keys and a quality hitch pin lock purchase this. Thanks for a great product and will recommend to everyone.


Device accepted my vehicle key and was programmed perfectly. I would recommend this hitch pin.

Still in great condition.
Bob F - 06/09/2020


Super fast delivery. Hitch pin and lock seem like very high quality. Coded to my old Chevy key in seconds.


The quality of this hitch is second to none. Very happy with the options and ease of use. The machine work is beautiful and worth every penny. Glad to purchase a product like this that was made in the U.S.A!!! After you see how nice this hitch is I suggest you purchase the lock pin also. Very nice that you don't have to carry another key. If you're in your truck you can always unlock it. Really like the idea of the ignition key doing both. And so simple to set up my three year old could do it.


Very good company to do business with.
are just as advertise
I will order again from etrailer

doing very well and have purchase more products since then
Tommy - 11/27/2018


Once I figured the best side of the hitch to have the keyed portion it was a snap...worked well with my TEXANS team logo
hitch cover!!! I would recommend this item to friends.


Very high quality build, all stainless internals and pin. I have these on every one of my vehicles that have a hitch and it works flawlessly. I’d highly recommend it.


Haven’t used it yet but it did work as advertised.


This is a great product, no need for another key on my key chain. Just a simple coding of my truck key and your done. Both the pin and lock assembly are of high quality and rugged.


Looks good, the lock keyed to my truck key is great

Great thanks
Bill - 06/16/2017


Looks like a good product. Keying it was a breeze. I think it will work well.


Great product that is what it is suppose to be a great receiver lock. Staff at trailer are excellent!


Great product.


Item as advertised. Prompt delivery. Insterted key, turned key as instructed, lock worked perfectly with truck igntion key. Very robust construction. One less key to carry.


Pin & lock with one key is the ticket for me ! Its great & it works very well! Thanks


I've had this lock for a year. No problems so far. I like having it keyed same as my truck.

2015 GMC Sierra 2500

Excellent product. Keeps my receiver very secure. Easy to set up and use.

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