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BOLT Trailer Coupler Lock - 1/2" to 3-3/8" Span - Codes to Center Cut GM Key

BOLT Trailer Coupler Lock - 1/2" to 3-3/8" Span - Codes to Center Cut GM Key

Item # BL7025287
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This coupler pin lock ensures that your trailer is securely hitched and helps keep it safe from theft while being stored. With this lock, you won't have to carry an additional key - it codes to your vehicle's ignition key. 1-636-306-4830 to order Bolt bolt locks part number BL7025287 or order online at Free expert support on all Bolt products. Guaranteed Lowest Price and Fastest Shipping for BOLT Trailer Coupler Lock - 1/2" to 3-3/8" Span - Codes to Center Cut GM Key. BOLT Locks reviews from real customers.
  • All Info
  • Reviews (22)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Bolt BOLT Locks - BL7025287

  • Coupler Pins Locks
  • Bolt

This coupler pin lock ensures that your trailer is securely hitched and helps keep it safe from theft while being stored. With this lock, you won't have to carry an additional key - it codes to your vehicle's ignition key.


  • Coupler pin lock is used in place of a standard pin to prevent theft of your trailer
  • Lock slides back and forth along pin to allow use with couplers from 1/2" - 3-3/8"
  • 1/8" Incremental adjustments allow for a snug fit
  • 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
  • Heavy-duty construction with security features
    • Plate tumbler sidebar prevents picking or bumping
    • Locks automatically when key is removed
    • Double ball bearing locking mechanism
  • Weatherproof, automotive quality construction
    • Stainless steel pin is durable and rustproof
    • Stainless steel lock shutter keeps out dirt and moisture
    • Outer casing is painted black to resist corrosion


  • Application: trigger-latch-style (or lever-latch-style) ball couplers
  • Inside pin length (span): 1/2" to 3-3/8"
  • Pin diameter: 5/16"
  • Limited lifetime warranty

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

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.

7025287 Strattec Programmable BOLT Coupler Pin Lock - GM Center Cut Key

This Product Fits The Following Vehicles

Video of BOLT Trailer Coupler Lock - 1/2" to 3-3/8" Span - Codes to Center Cut GM Key

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for BOLT Trailer Coupler Lock Review

Today we're going to be taking a look at the Bolt line of trailer coupler locks. These are designed to fit with your standard ignition key. They can be keyed to Ford, Chevy, GM, Nissan, Toyota, just about whatever you got. They use an automotive quality lock. It has a six-plate tumbler that's going to prevent it from being picked. There's a stainless steel shutter that you can see right here.

That keeps dirt and debris out of our cast zinc cylinder. It's going to give us superior corrosion resistance. It attaches to the stainless steel rust-proof shaft using a double ball bearing, and it's going to lock automatically when the key is removed. They make these right here in the United States and they're going to offer a limited lifetime warranty. Now to get our lock set up we're simply going to take our ignition key, our key that we're going to use everyday with our vehicle. We're going to place it right into the lock and we turn it all the way over until it stops.

At that point our lock is unlocked and our tumbler is keyed. That's all there is to it. As you'll see here now we can slide it right down in there, get our secure fit. These are adjustable anywhere from 1/2" all the way up to 3-3/8". That's on an 1/8" increment.

We've got several different spots there where we can get it connected to give us a good snug fit. Now that we've gone over how it works, we'll show you how to use it on your trailer. Here on our trailer we're just going to slide the pin right through our coupler. We'll bring our bolt lock onto the other side. We'll then just turn our key and remove it. When we're ready to head down the road we'll know that nobody's going to be able to remove the trailer from our vehicle or hook up to it when our trailer's unattended.

To remove it we'll just place our ignition key in, give it a turn, and pull it right off. Now that we've seen how it works and we've gone over all the features, that will complete today's look at Bolt line of trailer coupler locks. .

Customer Reviews

BOLT Trailer Coupler Lock - 1/2" to 3-3/8" Span - Codes to Center Cut GM Key - BL7025287

Average Customer Rating:  4.8 out of 5 stars   (22 Customer Reviews)

This coupler pin lock ensures that your trailer is securely hitched and helps keep it safe from theft while being stored. With this lock, you won't have to carry an additional key - it codes to your vehicle's ignition key.


Really like that it keys to the vehicle instead of having a separate key for each lock. Pairs perfectly with our Bolt hitch pin lock.


Secure and safe

2012 Chevrolet Equinox

Works perfect. Exactly what I needed.


What a slick setup. Lock and pin all in a line and rubber cover over keyhole. Since it uses my Toyota tailgate key it is easier than fumbling for yet another key to get ready to hook up a trailer.

I still like all of the Bolt products and am still using them. I would say that I do not recommend the Bolt padlocks as while they have the same great key setup I think the shackle is too long, too thin, and too exposed for easy removal by a small grinder or bolt cutter. Otherwise great stuff. I do wish they actually made a hockey puck style padlock instead
Brian - 05/22/2019


What could be better than a lock that keys to your ignition key! Although does not explain that the lock keys to your key the first time you use it, it does! I thought that anyone with a GM key could then unlock it but this is not the case. While I don't think it would take much to bust this off with a crowbar it does serve two purposes very well. It makes it very easy to secure the locking mechanism in place while towing and not towing to prevent trailer theft. It also acts as a visual theft deterrent. If someone is really determined to steal your trailer they will, this will slow your average criminal by a little bit. Be sure to order the correct one for your key!
Thanks again for your excellent service!


Liked the Bolt receiver lock. For security while traveling decided to tryout the Bolt coupler lock. Bit pricey, but the convenience of single key operation for all locks might be worth it. The rod with is relatively thin due to the indentation where the locking mechanism catches. Less dents and longer solid section might make for a bit stronger lock. Require the thief a few more saw strokes or more oomph with the bolt cutter.

The +: Single key operation. Simple and functional. Materials and manufacturing seem sold. Time will tell.

The -: Relative cost. No dust cover for key opening. Just gated like most quality locks. JMHO, not designed for leaving an unattended trailer.


Bolt hitch and trailer locks are a great idea since they key using my vehicle key. Feel well built and solid. Only thing I question is the coupler lock does not have a protective cover. Otherwise great.


Best lock I have found, like the keyed to the truck ignition key


This is just exactly what I was expecting and needed.


I've been buying from etrailer for years they have the best customer service. One key for all my trailer locks , Simplifies things.


Worked as advertised. Looking forward to the added security and convenience it will provide us in the upcoming camping season


I still have my trailer so this must be working or they are to lazy to cut it.


Works as expected, very convenient to use 1 key

2014 Chevrolet Silverado 1500

works good, used for my pop up camper


Product worked great! Customized to my GMC truck key with no issues!


Excellent concept, and a great, solid product to accomplish it.

2022 GMC Sierra 2500

2019 GMC Sierra 1500

Absolutely love the programming to my trucks key!!


Affordable, easy to program and quality product.




Great product, works perfectly!


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Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Tammy D
Written by:
Tammy D
Employee Matthew S
Updated by:
Matthew S

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