
RETRUE Adjustable Trailer Coupler Lock – Heavy Duty Anti-Theft Lock for RV & Boat Trailers
Secure your trailer with the RETRUE trailer coupler lock, designed for reliable anti-theft protection. This adjustable coupler lock pin fits various trailer setups while helping prevent unauthorized towing. It also works as a durable trailer hitch lock, providing dependable security for parking, storage, and everyday towing applications.
Adjustable Universal Fit:
This adjustable trailer coupler lock fits multiple coupler sizes for RV trailers, utility trailers, camper trailers, cargo trailers, and equipment trailers. It works as a versatile universal trailer lock for different towing setups and everyday security needs.
Reliable Anti-Theft Security:
The reinforced design blocks the coupler opening and helps prevent unauthorized connections to a hitch ball. This durable anti theft trailer lock provides dependable protection for outdoor storage, travel stops, and daily parking.
RV & Boat Trailer Storage:
Designed for marinas, campsites, driveways, storage yards, and jobsites, this trailer hitch lock adds visible protection against unwanted towing. It also functions as a compact boat trailer lock and RV trailer lock for recreational use.
Durable Coupler Protection:
Built for long-term outdoor exposure, this heavy duty trailer lock resists weather, tampering, and daily wear. It also supports trailer tongue lock, tow hitch lock, and cargo trailer lock applications for reliable trailer security.
Coupler Compatibility
Fits 1-7/8" trailer couplers
Fits 2" trailer couplers
Fits 2-5/16" trailer couplers
Not compatible with:
Gooseneck couplers
Fifth-wheel couplers
Specialty oversized coupler systems
Locking Adjustment Range
11 locking positions
Adjustable U-bar spacing
Designed to minimize coupler movement
Always verify coupler size before purchase
Shipping:
We ship our products primarily through USPS/UPS. All items will be shipped within 72 business hours upon receipt of payment (except Saturday and Sunday). Orders placed on weekend will be shipped within 4 days.
Returns:
Items purchased from RETRUE may be returned in original unused condition within 30 days from the date of purchase for a refund, to the original form of payment. All returns must be pre-approved by RETRUE. Otherwise, unauthorized returns will not be accepted.
Product Type: Trailer Coupler Lock
Compatibility
·1-7/8 inch couplers
·2 inch couplers
·2-5/16 inch couplers
Locking Positions: 11 adjustable locking positions
Material
·Aluminum lock body
·High-strength A36 steel U-lock
Security Features
·Anti-theft design
·Cut-resistant structure
·Tamper-resistant lock cylinder
Weather Protection
·Rustproof coating
·Weatherproof rubber keyhole cap
Applications
·RV trailers
·Boat trailers
·Utility trailers
·Travel trailers
·Cargo trailers
·Livestock trailers
Package Includes
·1 × Trailer Coupler Lock
·2 × Keys
Warranty: 120-day product warranty
Frequently Bought Together
Customers praise this heavy-duty trailer coupler lock for its solid construction and ease of use. Reviews highlight it's "very easy to put on and take off" and "too big for bolt cutters." Shoppers appreciate the peace of mind for securing RVs, boats, and cargo trailers. One concern: chrome coating may rust after a year.
- Like it a lot, very easy to put on and heavy duty
- Work great! Too big for bolt cutters to cut through.
- Hefty lock, easy on easy off highly recommend this product!
- 5 stars: 28 (97%)
- 4 stars: 1 (3%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
Like it a lot , very easy to put on and heavy duty
Works as described
Just what I wanted.
Hefty lock, easy on easy off highly recommend this product!
Worked great on travel trailer
Finally! I didn't realize that trailer hitch locks were vastly different for different types of hitches. This is my third one purchased, each being different in style. I have a bull-nose hitch, and not only did it fit wonderfully, but the keys has the name of the lock embossed on them, so I won't have to try to either mark them myself or remember what/where the keys fit. For that alone, I would have given it a 10 out of 10, if the scale went up to 10.
work great! Too big for bolt cutters to cut through.
Fits perfectly, delivered faster than expected, hopefully never gets tested by a thief.
Works great.
Works just it said it would
Purchased this for my first little travel trailer and with this I now have some peace in mind that my trailer is staying on my property. Looks to be made very well made and easy to put/take off. Highly recommend.
Quality and well built; worked perfect for our log splitter.
Heavy duty!
Easy install. Great price. Its a deterrent and thats what I needed.
Solid piece. Well made. Glad I bought this one!
It is as advertised. Works well and easy to use.
good
works good and easy to use
Works perfect
This is the second one I've purchased. One for my camper one for my cargo trailer. Very sturdy, love that they added different colors now. A little thicker coat of chrome on the u part would be the only thing id change. My first one is starting to rust after only a year. Other than that solid choice
Buen producto
Great price
It was good
Very solid heavy duty. Red color is nice.
Worked perfectly as soon as I opened the perfect box it came in with no damage. The beefy still is definitely a plus. I bought a $20 quick lock at a store here in these parts called Bi-Mart. It was puny compared to this. I had the red bar and gray base. First thing I did was check the lock and key functioning. Smooth as a bottom dollar. Looks great works great. Unless you are going hardcore all locks are just to keep honest people honest. I would suggest if you're serious about stopping or making it harder for your rig to stay yours is wrap some New York bicycle antique theft chain through your leaf springs through the tires rims with an American Lock on the inside of everything so it's hard to access with a cutter. Because you're not going to use bolt cutters on those chains. They are specifically shaped so that bolt cutters cannot cut through them and they have a sleeve made of cloth that definitely stops bolt cutters either way that's not going to work. They'll have to start carrying apart leaf springs axles and the tire with the rims etc. You got to make it harder than the next guy. I doubt your rig will be worth the time because it's easier to take the next guys. And don't show your neighbors what you have or how you do it to keep it safe. Use cameras, it's 2025. The more you put on remote solar lights and everything else you can do if you really look into it. This applies to all personal property. Either make it hard enough to they go to the next Target or if they take it it's destroyed and it's useless to them. Always watch your surroundings and actually look around yourself because you have to be the watcher because no one else is going to be watching out for you. And if they do you never know who they know and what information they have for the people wanting your property. People use anti-theft bars on their steering wheel. You can bend the steering wheel or cut right through it removing that and teeth theft bar. Here on Amazon you can buy a $20 pedal lock stainless steel and they're not going to take the time to cut through that. I put three of those on my rig. Along with a lot of other things. All rigs are easy to steal. The be creative watch YouTube and see how they break stuff and think outside the box. Look up New York Kryptonite KryptoLok Series chains and locks. Research d style locks. Put a couple of these heavy duty chains and locks through your tires leaf springs axles etc. Good luck on stealing that without being seen or heard. Or moving it while we're moving the tires and cutting through chains that are definitely going to attract attention. But this lock was awesome I like it super bulky not weak looking. You have to send a message by the things you put on your rigs and property. You're not going to get this easy and it's going to cause you time and you're probably going to get noticed and caught. Because you can't count on the police to protect your property or find it. Put some air trackers on it. Basically invest as much as you want to if it means that much to you. I can't see anybody taking off for those chains and locks on every tire wrapped around every axle I leave spring. And that's just for starters. Solo-powered lights work great because they have the capability of weather resistance functionality and battery charge. Cameras are easy to use. Duh, always test out anything you buy immediately or before you purchase if possible. That is the owner and purchaser problem if they don't. Those are the people that are the ones that will be the target instead of you. Because it's easier to steal from someone who doesn't know what the heck they're doing. It's 2025 wake up
Great
Worked great.
No matter what type of trailer you own, your investment is at risk of being stolen. By installing Retrue hitch lock on your trailer, your less likely to experience this type of loss. The lock is easily installed, but extremely hard to remove without a key. To me, the cost of the lock is insignificant when compared to the value of my trailer and cargo.
Put it on the trailer took the truck to dinner stayed in hotel overnight not worried about the parking lot
