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🔐 Lock it down like a pro — because your trailer deserves the best!
The Proven Industries Model 2178-B Trailer Lock is a heavy-duty, industrial-grade security device designed specifically for 2-inch Ram and Bulldog trailer couplers. Constructed from hardened alloy steel with a power-tool resistant cover, it features a unique pick-proof key system to prevent unauthorized access. Made in the USA, this 13.6-pound lock offers robust protection against theft, ensuring your trailer stays secure wherever you go.
| ASIN | B01IRA72NC |
| Best Sellers Rank | #275,930 in Automotive ( See Top 100 in Automotive ) #358 in Towing Hitch Locks |
| Brand Name | Proven Industries |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (152) |
| Item Dimensions | 7.26 x 5.13 x 8.36 inches |
| Lock Type | Pin Tumbler |
| Manufacturer | Proven Locks |
| Material Type | Alloy Steel |
| Model Number | 2178 B |
| Style Name | Industrial |
| UPC | 709293265713 |
| Unit Count | 1.0 Count |
R**K
Good product
Very secure and easy to apply to hitch
R**N
being a good trained monkey I soon got the hang of it
This lock is outstanding. Fits my Bulldog hitch coupler perfectly. Only minor gripe is the learning curve for inserting the key to unlock. Finding the keyhole in the blind was difficult at first forcing me to lie on the ground to look underneath to insert the key. However, being a good trained monkey I soon got the hang of it. I can see why it might deter some theives from just the inconvienience of having to get low enough to see. After a few uses, I can insert the key easily from above now that I know the alignment. This lock is heavy, well designed and easy to install and remove. I am very pleased with my purchase and have every confidence that no one is going to drive off with my trailer when the lock is installed. I highly recommend. Sure it's expensive, but when weighed againt protection of my trailer and contents, it is well worth the price I paid. I plan to buy again for my next trailer.
J**Y
Perfect fit.
Perfect fit. Very well made and sleek design. No longer will I worry about the safety of my new trailer. Definitely worth the money.
J**M
I was skeptical
The price made me concerned, but this is an excellent, well designed product and it even looks cool. Leaving my travel trailer with this in place makes me feel it is secure and that it would take more than an angle grinder to remove it.
V**O
My gear is now safe.
Worked perfectly out of the box. Easy to attach. Looks and feel solid and safe.
F**N
Best lock
Best lock I know of. I don't have to worry about my trailer.
A**R
Near perfect
Overall, this is a really good trailer hitch lock. It was the most secure one that I could find. The only reasons that I didn't give it 5 stars is because I have a bulldog hitch and the hooks don't fit in the lock like the videos show. Granted the videos are for ram hitches, so that is likely why. The other thing that kept me from giving it five stars is the key and lock can be tricky at first. If you don't get it 100% of the way in it still turns and jambs things up. Then you have to jiggle it around until the tumblers get lined up again.
M**C
This is the one you need - totally worth it!
After searching high and low, I finally found this trailer lock that works with our trailer's Bulldog/Ram coupler. This thing is heavy, thick, and well designed. Anyone who might have wanted to steal your trailer is going to take one look at this beast and rethink their life choices. ;^)
A**R
Great design and will protect your trailer. Worth the price for piece of mind.
Trustpilot
1 month ago
4 days ago