Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches
(77 reviews)
Price: $64.51
Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches
Item # 3794DAT
Retail:$85.06
Our Price: $64.51
You Save: 24%
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Master Lock Trailer Hitch Lock - 3794DAT
- Fits 1-1/4 and 2 Inch Hitch
- Fits 1-1/4 Inch Hitch
- Fits 2 Inch Hitch
- Standard Pin Lock
- Keyed Unique
- Master Lock
- 2 Inch Span
- Bent Pin
Kit includes a universal coupler lock to prevent towaway theft; an adjustable latch lock to ensure that your trailer won't be unhooked from the coupler; and a trailer hitch receiver lock that fits 1-1/4" and 2" hitches.
Features:
- Towing kit includes 3 locks for ultimate security
- Universal-fit coupler lock deters trailer theft by fitting over the coupler, preventing hookup
- Designed for use when trailer is not in tow
- Constructed with a laminated, riveted steel frame for strength and durability
- Center section that fits inside coupler is finned steel - will not warp or bend
- Coupler latch lock keeps others from releasing your trailer once it is hooked up
- Stainless steel construction is durable and rustproof
- Adjustable lock with 6 locking positions fits:
- 5/8" Latch width - most standard couplers
- 1" Latch width - most 2-5/16" ball couplers
- 2" Latch width - most wide-latch ball couplers
- Trailer hitch receiver lock is used in place of standard pin and clip to prevent theft of ball mount or accessories such as cargo carriers and bike racks
- Patented, stainless steel swivel head rotates 360 degrees for easy access
- Brass keyway with aluminum casing conveniently faces toward you, not off to the side
- Included pins will work with both 1-1/4" and 2" hitch receivers
- Chrome-plated steel is durable and corrosion resistant
- Patented, stainless steel swivel head rotates 360 degrees for easy access
- All locks have integrated keyhole covers to keep out dirt and moisture
- 3 Keyed-alike keys and convenient storage bag included
Specs:
- Coupler lock fits most 1-7/8", 2" and 2-5/16" ball couplers including:
- Straight lip, rolled lip and surge brake/hydraulic couplers
- Reese, Fulton, Valley, Atwood, Shelby, Putnam, Bulldog, Dutton-Lainson and UFP couplers
- Pin diameter of coupler latch lock: 1/4"
- Pin diameter of receiver lock: 1/2" and 5/8"
- Inside pin length of receiver lock (span): 2-3/4"
- Limited lifetime warranty
Replaces 3774DAT
3794DAT Master Lock Coupler Lock, Swivel Head Receiver Lock and Coupler Latch Lock
Installation Details
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- etrailer mistake
Customer Reviews
Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches - 3794DAT
Average Customer Rating: 4.7 out of 5 stars (77 Customer Reviews)
Kit includes a universal coupler lock to prevent towaway theft; an adjustable latch lock to ensure that your trailer won't be unhooked from the coupler; and a trailer hitch receiver lock that fits 1-1/4" and 2" hitches.by: Timmy04/15/2019
Master locks are a name brand. It is so nice to have all locks keyed the same. This decreases the chance the camper will get stolen.
by: D. Nguyen12/10/2020
Great product. All the locks work fine with my trailer and hitch. I feel more secure now leaving my boat park on the driveway. I was skeptical that it wouldn’t work with the square tongue but it fits really well and sturdy.
by: Tracy10/26/2023
great product to keep everything secure until i lost the tiny little keys .I had to unfortunately cut everything off. products were definitely difficult and time consuming to cut with a cutoff blade. speaks well of the construction.
by: Mel 06/20/2023
This a great kit, with everything you need to make sure your Trailer is safe.
by: James01/23/2020
This is my second purchase of this kit. I have used the products to secure a small cargo trailer I haul behind my motorcycle. The locks are easy to install and provide added security. I have never been disappointed with any prodducts purchased at etrailer.com. Customer service has been excelent. I would recommend this product to anyone.
James
1/24/2021
I am still happy with the performance of this item and recommend it to anyone.
by: Toby06/11/2013
Ample room for the bits in the bag, which is nice. I used some of the shipping bubble wrap to pad it. Everything looks nice, works properly, and I've already installed the two trailer locks on my trailer. Decent theft deterrent, will at least slow 'em down or walk if they're lazy.
Toby
7/3/2014
Ive had this for a year now and its worked flawlessly. Granted, it is used on our trailer that is stored indoors. The locking mechanisms and key tumblers are still smooth. The bits have been exposed to rain and sun and still look
by: Larry12/04/2021
Being that it is a master lock set I would have expected better quality. The hitch part is riveted together and has a plastic cover on it. It looks very flimsy and cheap. The locks are very cheap and I am sure a big hammer would knock it right off, The lock that goes to the hitch with the long pin could be knocked out of place with a big hammer. The truck hitch pin is ok and is under the truck. Still a cheap lock.
Jenny N.
12/6/2021
I will have our customer service team reach out to you. I can say that the locks are a theft deterrent and I can not say that there are any lock systems out there that will 100 percent not come off. It really comes down to how good the thief is and how hard he is willing to work for it. I checked and I do not have another lock set that provides as many locks that this one does.
by: Michael 08/30/2023
Just what I was Looking for.
by: James03/23/2018
I've had this now for about a year, and it works very well. I like the fact that it all fits in the included case, and that all of the locking mechanisms are the same. I only have to carry one key for everything. I do think the lock for the coupler could be better, but overall I am very happy with these locks.
James
3/24/2019
I have been using this periodically since I purchased it, and it is still working great. I did lose one of the pins, so I might be purchasing a new one in the near future, but it isnt because the product isnt working as it is suppose to work, its because I cant find one of the pins.
by: Christian K. 06/17/2017
Great product, the bag is not as cheap as you'd think. Hitch lock fits my camper hitch perfect. These are better than the Reese/Curt ones.
Christian K.
6/17/2018
After a year, bought a new trailer, same style hitch, but shaped different...doesn’t fit
Rachael H.
6/18/2018
This Master Lock trailer coupler does fit a wide variety of coupler sizes, profiles, and brands. I have included a link to our current offerings of trailer couplers if you would like to consider a different option.
Helpful Links
by: Philip08/01/2022
Probably not the best product available, but it provides a decent layer of protection for the money. I’m got it to make sure my utility trailer doesn’t walk away. My only complaint is that my trailer tongue was powder coated and the lock for when it isn’t connected to a tow vehicle scratched up the powder coating quite a bit.
by: Brad04/12/2019
Nice to have a set of locking devices in one case all keyed the same.
HOWEVER, Not well designed & typical Chinese poor quality.
The coupling lock doesn't fit tight , its sloppy and loose. There is a short video of this same coupling lock being knocked off a trailer with one blow from a hammer.
The hitch shank pin has the locking cap perpendicular to the pin. With my tow vehicle I need to get on the ground to see and insert the key. Better to have the key hole in line with the pin and insert the key horizontal so the key hole slot is visible.
I wouldn't recommend this lock set.
by: Jeff R.06/12/2013
This seems to be exactly what they say. It works, I feel better knowing my trailer is not going to be taken easily !! A drop of oil in the key hole will help keep moisture out and the keys work better.
Jeff R.
5/29/2014
Still happy with this product.
by: Rus06/01/2016
Just took on it's first camping trip and so far everything is great. Seems like sturdy construction and having 1 key for everything is AWESOME. Caps over lock are nice for keeping dirt and water out. One bonus is the hitch lock creates a sort of "shin protector" for that time in the dark when you walk into your hitch. Another buddy is ordering his set this week.
by: Dave N02/16/2017
Recently purchased a boat and need to park my boat on trailer at a storage lot due to HOA restrictions. The Master Lock set secures all components of the trailer and hitch lock. Operation is smooth and all locks protected from weather. Recommend.
by: Peter K07/26/2012
Disappointed....
I wanted a set of 3 trailer locks and because the website has so many to choose from, I called etrailer for advice. I explained that I wanted top quality locks to secure an Airstream and that nothing short of the sturdiest would do. I was pointed at this Master Lock set and told it was well-regarded by buyers. So I took it. When it arrived I could see straight away how flimsy most of it is. Only the receiver lock appears to be anywhere near robust.
I wouldn't buy this again - individual locks are a better way to go.
by: Diane K06/21/2017
We feel like we've done everything we can to keep our trailer from being stolen. This lock set works great right out of the box (bag). Plus having the brand name of MasterLock gives us the added assurance that it will last more than one season. The directions were easy to understand and follow.
by: Paul 09/17/2018
I just made a significant purchase from etrailer to fit out my SUV and a new trailer to haul my Teryx UTV. Because they specialize in "everything trailers", I found their selection of options to be one of the most extensive on line ...and the pricing is very competitive too. The only place I found a full set of trailer/hitch locks with common keying was on this site. The set looks well made as I'd expect from Master Lock.
Packaging was excellent , delivery was fast and I will order from them again. Not a giant web sales enterprise so very good customer service follow-up... and a phone number that a real person answers! Imagine that :)
by: Ron T08/09/2017
Amazing product and the highest quality on everything I ordered - Draw-Tite Hitch Receiver, Harness, and Lock and Coupler Set for my 2016 Chevy Traverse. The video online made it so easy to install. Also, the wire harness instructions on where to install fuses and replays was so easy! If I need any trailer needs in the future I’m definitely ordering only from etrailer. Thank you etrailer Team!!
by: Sparky03/21/2018
This lock is easy to apply and remove. All locks are keyed alike for convenience. Works well for me on a small trailer with a two inch ball connector.
by: Cynthia01/15/2013
All five products ordered are great! They are just what we where hoping for. The Aluminum Ball Mount you had to back order was worth the wait, and shipped to us as soon as you recieved it. You kept in contact with us and well informed us of what was going on with the order, thanks and we will probably use you again. We are on our way to pickup our new trailer now with all the equitment we just recieved from you for towing. Thanks Cindy
by: Michael D04/25/2018
Product works exactly as stated. Easy to use and higher quality than I expected. etrailer.com has been excellent through every step of the process instilling confidence in that if there was a problem I know they'd handle it. etrailer.com definitely deserves consideration when there's a choice between them and others. etrailer.com earns it!
by: Duke04/28/2018
The harness for my Pathfinder and Master lock kit were exactly as advertised. Good equipment at a reasonable price, not cheap junk. Will but from etrailer again. Thanks.
by: Gary06/08/2017
Items arrived quickly and as described. I feel very secure knowing that my trailer and hitch are safe from theives!
by: Bo B08/08/2017
This was a very easy installation. The custom fit design was exactly what I wanted. Wife and I installed it ourselves. Saved us hundreds of dollars and it looks professional. The video was very well done. Thanks etrailer for having these products available. We will definitely be using your services again!!!
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Timmy B.
4/16/2020
Very pleased. Glad to have one key for all locks.