Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches

Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches

Item # 3794DAT

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3794DAT - Keyed Alike Master Lock Standard Pin Lock
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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. Call 800-298-8924 to order Master Lock hitch locks part number 3794DAT or order online at etrailer.com. Free expert support on all Master Lock products. Guaranteed Lowest Price and Fastest Shipping for Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches. Hitch Locks reviews from real customers.
  • All Info
  • Reviews (47)
  • Q & A (25)
  • Videos (2)
  • Photos
  • Why etrailer?

Master Lock Hitch Locks - 3794DAT

  • Fits 1-1/4 Inch Hitch
  • Fits 2 Inch Hitch
  • Fits 1-1/4 and 2 Inch Hitch
  • Standard Pin Lock
  • Master Lock
  • Keyed Alike
  • 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
  • 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



3794DAT Installation InstructionsInstallation Details 3794DAT Installation instructions



Video of Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches


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




Video Transcript for Master Lock Hitch Locks - Standard Pin Lock - 3794DAT Review

Today we are going to show you part number 3794DAT from Master Lock. This is a Keyed Alike Trailer Lock Set. It comes in a complete kit with three different locks. It also comes in a nice bag. First off, you have the coupler lock itself, you have got the lock for the coupler latch itself, and then finally you have the lock for the ball mount that goes on your towing vehicle. And as shown, it does come with a nice carrying case comes with this part number and you also get three keys with it. And the lock set for the ball mount can also be used for an inch and a quarter hitch too. The sleeve allows you to do it in a two inch receiver and without the sleeve, you use it in an inch and a quarter receiver. And now that we have got the basic pieces here we will actually show an actual practice on a coupler and on a typical receiver hitch.

We are going to install our coupler lock on a simple coupler here. Using a two inch ball. The ball part goes into the coupler itself. You can latch it down into place like a ball and the whole body slides back into place. Slide it on as far as possible. Take the key. Latch it. And it is locked. That part of the coupler is secure. Next we will install the lock for the latch itself. And you can see the pin here will fit a variety of different locks. From this wide to a little over a half inch here. That is why they have all of the little indents here on the pin. And you just push it all the way in as needed. Take your key, lock it, pull it out, and you are good to go. All right, and the third part is the ball mount lock. And that will simply, this part will actually slide into this hitch pin hole. Start from the other side. Push all the way through and just pop the lock on. And your ball mount is securely locked to the vehicle. And with that, that covers our review with part number 3794DAT from Master Lock.


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   (47 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.

- 3794DAT
by:

One key does it all. Very convenient !! 181471



- 3794DAT
by:

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. 488041


Comments

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.

James - 03/24/2019

50916

- 3794DAT
by:

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 :) 566002



- 3794DAT
by:

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. 628861



- 3794DAT
by:

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. 49400



- 3794DAT
by:

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. 625396



- 3794DAT
by:

looks good low price, low shipping rate, and fast delivery will order from etrailer.com again 2588



- 3794DAT
by:

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. 84171


Comments

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

Toby - 07/03/2014

5290

- 3794DAT
by:

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 63135



- 3794DAT
by:

Great products from MasterLock. This was my first order from etrailer.com. Everything was processed, shipped, and received promptly. Tracking let me know exactly when to expect the items on my porch. I will definitely use etrailer.com for my future needs. 472370



- 3794DAT
by:

It worked perfectly, It took me like 30 min to install, thanks to etrailer team 715591



- 3794DAT
by:

Hopefully this will deter any would be crooks. 699945



- 3794DAT
by:

Product quality is excellent. It’s easy to use and covers multiple functions in one compact kit. 679512



- 3794DAT
by:

i love this product it has everything you need to protect your trailer and hitch from thieves 661159



- 3794DAT
by:

Received my order quickly Waiting to check it out when I get home. 660790



- 3794DAT
by:

E- trailer is a great company! Every time I’ve ordered the products are of excellent quality and the service is the best. They really go out of their way to make sure customers are impressed 633453



- 3794DAT
by:

Just received the set. Looks decently built. Easy to install. I'm very happy with purchase. 628664



- 3794DAT
by:

Great set of locks. Just bought a pull-behind motorcycle trailer and wanted to secure it. This set will definitely do the job. 620239



- 3794DAT
by:

Needed to protect trailer from theft and this does the job. ettrailer customer service can’t be beat!! 606013



- 3794DAT
by:

This lock set works fantastic. Easy to use and definitely worth buying. 605751



- 3794DAT
by:

Love this product! Came with a high quality case as well!! Nice to know my camper is secure while traveling! 566463



- 3794DAT
by:

Nice set! 564068



- 3794DAT
by:

Can not believe how solid the lock mechanics are. And all together this set is very affordable. Super reccomended, best of all, only one key for my ring! 515165



- 3794DAT
by:

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. 501802



- 3794DAT
by:

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! 500408



- 3794DAT
by:

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. 487322



- 3794DAT
by:

Building utility trailer to haul kakaks and move stuff around. Will be stored in yard so locks are critical to keeping it secure. 463392



- 3794DAT
by:

Just what I expected .. good quality & price. Got here quickly too 461783



- 3794DAT
by:

This lock set is just what I was looking for. Heavy duty and not able to be broken. There was a couple of thefts in area and this set will prevent mine from being a statistic. Each peice has a rubber seal over the lock mechanism to keep out the weather. 442446



- 3794DAT
by:

Good product so far. One key for everything is nice. Not heavy duty but should do its job. Not going to keep a pro from steeling your stuff but not much will. 427565



- 3794DAT
by:

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!! 418023



- 3794DAT
by:

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!!! 421566



- 3794DAT
by:

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. 396877



- 3794DAT
by:

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. 395197


Comments

After a year, bought a new trailer, same style hitch, but shaped different...doesn’t fit

Christian K - 06/17/2018

39845

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.

-- Rachael H - 6/18/2018


- 3794DAT
by:

Items arrived quickly and as described. I feel very secure knowing that my trailer and hitch are safe from theives! 390647



- 3794DAT
by:

Great product! I like how everything has one key! 387651



- 3794DAT
by:

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. 342619



- 3794DAT
by:

The set of locks arrived on time as expected. All of the locks are of expected quality for the price. You could get more expensive locks sold separately and of higher quality, but these will certainly serve to deter thieves. 321402



- 3794DAT
by:

I feel very secure with these items and how effective they are. 308212



- 3794DAT
by:

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. 255247



- 3794DAT
by:

So far, it has worked as advertised and a well thought our product offering 140619



- 3794DAT
by:

Product is as advertised. 118439



- 3794DAT
by:

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. 84348


Comments

Still happy with this product.

Jeff R - 05/29/2014

4502

- 3794DAT
by:

Great product and affordable. 69306



- 3794DAT
by:

Everything to secure a trailer and hitch in one convenient package, from Master:ock a name that is trustworthy 66488



- 3794DAT
by:

Good product 49940



- 3794DAT
by:

I purchased the Master Lock receiver lock set because all the items were keyed alike, and Master Lock has a reputation for quality products. 36969


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Ask the Experts about this Master Lock Hitch Locks

Do you have a question about this Hitch Lock?


  • What is the Coupler Height of the Malone MicroSportXT Trailer # MPG460XT
  • I spoke with my contact at Malone who said that the coupler height of the Malone MicroSportXT Trailer # MPG460XT is 15". When we installed the Draw-Tite Max-Frame Trailer Hitch Receiver # 76138 on a 2017 Mazda CX-5 the coupler height (from the ground to the top of the inside of the receiver) measured 13". If this is the case with your 2018 model then that means you will need a ball mount with a 2" rise. The Curt Fusion Ball Mount # C45155 is a great option as it has a 2-1/4" rise (the...
    view full answer...

  • Recommended Coupler And Hitch Lock Combination Keyed Alike
  • For your sleeve-lock coupler, I recommend the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches # 3794DAT. This will give you the hitch lock, the coupler ball lock and the pin lock. This kit is the best kit that has all three components keyed alike. If you want a better fit, you may need to move to a system with different keys. This Master Lock Set is very nice, but if you want the best coupler lock, I recommend you get something like the Blaylock...
    view full answer...

  • Coupler Lock for Borrowed Trailer with Surge Brakes
  • Due to the unique style of coupler that you send in a picture of the hitch lock that would work the best is the Fastway coupler lock part # DT25013KA since this is a very universal style of lock that fits most couplers out there.
    view full answer...

  • Trailer Locks that are All Keyed Alike
  • There isn't a way to order Blaylock wheel, coupler, and hitch locks keyed a like but we do have other lock sets that are keyed alike. However they do not include a wheel lock. Set # 3794DAT includes a coupler lock, latch lock, and hitch locks for both 1-1/4 and 2 inch hitches. Set # 2848DAT is similar but drops the coupler lock. If trailer theft is a problem in your area you might want to consider Linxup GPS Tracking Device # 300-AT3-S so that even if the trailer is stolen it can be...
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  • Recommended Tow Setup for 2014 Acura MDX and Jayco Trailer
  • For your 2014 Acura MDX, I recommend starting with the Curt Trailer Hitch Receiver # C13146, which is an easy bolt on installation. Then for 4-way wiring, I recommend the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118628 which plugs into your Acura MDX's junction box, which is located in your rear cargo area, behind the driver's-side trim panel in the spare tire compartment. Once connected, insert the fuse in the junction box. I've attached a video to assist. Then...
    view full answer...

  • Keyed Alike Coupler and Hitch Lock Recommendation
  • The Master Lock 1-7/8" and 2" Trailer Coupler Lock # 377DAT can be keyed alike meaning that if you ordered several we could make sure that all of the ones you receive would use the same key. The Master Lock Hitch Receiver # 1481DAT does not have a keyed alike option. This product would ship with it's own key design. Based on what you are looking to do I think your best option would be the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set # 3794DAT. This comes with two coupler...
    view full answer...

  • Compatibility of Keyed Alike Extended Length Locking Hitch Pin and Trailer Coupler Locks
  • The Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches # 3794DAT are keyed alike, but adding the extended length locking pins will not allow the keyed alike to also include those pins. For the 3-5/8 inch usable length, I recommend the etrailer.com Trailer Hitch Receiver Lock - Extra Long # e98881 which can be keyed alike. For the coupler locks and the hitch pin length you are seeking, you will have two different keys because you have two different manufacturers...
    view full answer...

  • What Size Couplers Will the Coupler Lock Fit in Universal Keyed Alike Trailer Lock Set # 3794DAT
  • The coupler lock that is part of the Master Lock Universal Keyed Alike Trailer Towing Lock Set, # 3794DAT, is a universal fit coupler lock designed to fit most couplers. It fits 1-7/8 inch, 2 inch, and 2-5/16 inch couplers. I have included a video review of just the coupler lock below. The Hitch Lock fits both 1-1/4 inch and 2 inch trailer hitch receivers and the coupler latch lock will fit latches up to 2 inches wide with a 1/4 inch or less hole diameter. I have included a link below...
    view full answer...

  • Recommendation For Locks To Prevent Theft Of A Camper Trailer
  • If you are wanting to lock the trailer to your 2002 Isuzu Trooper and you have a 2 inch hitch receiver, I would recommend the etrailer Trailer Hitch Receiver And Coupler Lockset, part # e99039. This is a set of locks that will lock the ball mount to your tow vehicles 2 inch hitch and also lock the trailers coupler to the hitch ball. Both of the locks can be keyed alike, so only one key is needed for both locks. Locking your trailer at both connections will add time when somebody is...
    view full answer...

  • Recommended Trailer Locks Keyed Alike
  • We don't have a specific page for keyed alike locks and because it is an older answer, we may have had one at that time. We do have a few lock kits that are keyed alike for coupler, latch, and hitch pin. I recommend the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches # 3794DAT to get all the locks for a trailer keyed alike for securing the entire trailer. If you let me know what you are looking for specifically, I can be of further help.
    view full answer...

  • Recommended Trailer Locks for Rented U-Haul Trailers to Secure When Connected and Disconnected
  • Since you are looking to lock your trailer when connected as well as when disconnected, I recommend the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches # 3794DAT. This kit will give you a hitch pin lock for your ball mount, the trigger lock for the trailer when connected or disconnected from you vehicle, and the coupler lock to secure it when disconnected. These locks are all keyed alike for your convenience. I've attached a video to assist.
    view full answer...

  • Is the Hitch Lock Included in Master Lock Set # 3794DAT Long Enough for 2-1/2-Inch Hitch Receiver
  • The Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set # 3794DAT that you referenced is intended for use on smaller 1-1/4-inch (Class I and Class II) and 2-inch (Class III and Class IV) hitches. The hitch lock included has a center span of 2-3/4-inches and this will be too short for 2-1/2-inch hitches. However, we do offer separate hitch locks suitable for use on your 2-1/2-inch hitch. The link I attached will let you see all such standard hitch pin locks for this size hitch....
    view full answer...

  • Recommended Trailer Coupler Locks Keyed Alike for Multiple Trailers
  • The Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches # 3794DAT does not allow for a keyed alike option at all. For a keyed alike option, I recommend the Fastway Universal Trailer Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers # DT25013KA if you just need the coupler locks. To order multiples, select keyed alike and then adjust the quantity before adding to cart. If you need coupler and trigger locks keyed alike then I recommend the Curt Trailer...
    view full answer...

  • Masterlock Trailer Hitch Lock Set Recommendation for a 2014 Forest River Rockwood 21ss
  • The Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set # 3794DAT should work on your 2014 Forest River Rockwood. The fact that you have a weight distribution hitch should not matter. This locking set comes with 3 different ways that it protects your towing setup. First it has a coupler lock that will deter your trailer from being stolen when not connected to your tow vehicle. Secondly, it has a coupler latch lock that keeps others from releasing your trailer once it is hooked...
    view full answer...

  • Will Master Lock Coupler Lock Fit a Yoke Style Trailer Coupler
  • Yes, the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches Item # 3794DAT should still work just fine on your yoke style trailer coupler. I have included a link to a video review of this lock set for you.
    view full answer...

  • Keyed Alike Lock Set for a 2017 TAB Trailer
  • I recommend Master Lock set # 3794DAT. It comes with various styles of locks that are all keyed the same so you won't have to worry about different keys for different locks. Three locks are included: hitch lock (for 1-1/4 or 2 inch hitches), latch lock, and coupler lock. I have linked a video review of this lock set.
    view full answer...

  • Keyed Alike Hitch and Coupler Lock Set Recommendation
  • What you would want is the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set # 3794DAT that comes with two kinds of coupler locks and two sizes of hitch pin locks that are all keyed alike. I attached a review video for you to check out as well.
    view full answer...

  • What Hitch Ball Sizes Can Be Secured With Coupler Lock in Master Lock Set # 3794DAT
  • The Master Lock Trailer Hitch Receiver and Coupler Lock Set, part # 3794DAT, includes three locks, one for the coupler, one for the coupler latch and one for the receiver. The coupler lock does fit three sizes of hitch ball: 1-7/8, 2 and most 2-5/16-inch balls. I confirmed this with Master Lock. The receiver lock will fit both 1-1/4- and 2-inch hitch receivers. All three locks come keyed-alike for convenience and this Master Lock product carries a limited lifetime warranty.
    view full answer...

  • Availability of Keyed Alike Padlocks and Trailer Coupler Lock Set
  • The Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches # 3794DAT does not offer an option to be keyed alike to other kits or individual parts. The Master Lock Shrouded Padlock # 37DAT does have the option to key alike multiple padlocks, however there is not an option available to have them match the # 3794DAT lock set. Unfortunately for keyed alike locks, the padlocks are your only option for your slide in ramps that I can find.
    view full answer...

  • Coupler Lock For a 2014 Rockwood Roo 21ss
  • I looked up pics of the coupler on the 201 Rockwood Roo 21 SS and that the style of coupler is compatible with the part # DT25013KA that you referenced. You will just need to measure the width of the lip on your coupler to be certain. The # DT25013KA is compatible with couplers that have lips up to 4-1/2 inches in width. If yours measures less than that, as I suspect it will, it should work very well. Since you are looking for a hitch lock and coupler locks I would recommend you go...
    view full answer...

  • Can 2 Master Lock Trailer Hitch Lock Sets # 3794DAT be Keyed Alike to Each Other
  • The Master Lock Trailer Hitch Receiver Lock and Coupler Set # 3794DAT referenced in your question cannot be keyed alike with another set but it will still be the best solution we have available for your two hitch receivers and couplers. This will allow you to use just a single key for each trailer lock setup. What I recommend doing is simply putting a small piece of tape on the lock and key and write an identifier on it (such as "1" and "2") so you can quickly remember which key is...
    view full answer...

  • Can Different Styles Of Trailer Locks Be Keyed Alike?
  • The Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches, # 3794DAT is the closest we come to a keyed alike option for all your trailer locks. We don't have the option of the keyed alike shackle padlock. The wheel locks can be keyed like each other, but not like the other locks so you can have multiples of the same part but you can't key the other parts the same as the wheel locks. We have the The CLUB Tire Claw XL # WI491KA and the option with the...
    view full answer...

  • Can Multiple Sets of Master Lock Trailer Hitch Lock Set be Keyed Alike
  • There is not an option to get two sets of the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set # 3794DAT all keyed alike but ordering two sets of these still gets you a total of six locks - two universal coupler locks, two trailer hitch receiver locks and two coupler latch locks - that can be unlocked with just two keys. So all you really need to do is put some masking tape on the locks and keys with an identifying mark (like putting "1" on a set of locks and keys and "2"...
    view full answer...

  • Ball Mount, Ball, Sway Control, Locks, Spare Tire for Hallmark Trailer and 2006 Toyota Highlander
  • First, to determine the correct ball mount you can follow the help article I have linked. It is important to measure ahead of time to get a ball mount with the right rise or drop needed to tow the trailer level. Or you can go with an adjustable ball mount such as # MT70067 which is great for more than one trailer or if you might be towing something different in the future. It has a maximum rise of 8 inches and maximum drop of 10 inches. For a 2 inch ball that is compatible with this...
    view full answer...

  • Availability of Universal Keyed Alike Trailer Lock Set that Fits 2-5/16 Inch Couplers
  • The Master Lock Universal Keyed Alike Trailer Towing Lock Set, # 3794DAT, is a universal fit coupler lock designed to fit most couplers. It fits 1-7/8 inch, 2 inch, and 2-5/16 inch couplers. I have included a video review of just the coupler lock below. The Hitch Lock fits both 1-1/4 inch and 2 inch trailer hitch receivers and the coupler latch lock will fit latches up to 2 inches wide with a 1/4 inch or less hole diameter. I have included a link below to a demo video of this set.
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Info for this part was:

Video Edited:
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Expert Research:
Robert G
Expert Research:
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Expert Research:
Jameson C
Expert Research:
Adam R
Updated by:
Adele M
Installed by:
Cole B

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