Master Lock 5th Wheel Trailer King Pin Lock




Code: 2999DAT


15 reviews

Retail:$20.98

Our Price: $19.80


Quantity: 


Product Specs:

Trailer Locks

Coupler Lock


King Pin Lock

Keyed Unique

Steel

Master Lock


Easy-to-use collar locks around your trailer's king pin so that it cannot be hooked up to anyone else's hitch. Bright red color provides visible theft deterrent, and the chrome-plated, deadbolt-style lock can double as a receiver lock.

Video of Master Lock 5th Wheel Trailer King Pin Lock


Customer Reviews

Master Lock 5th Wheel Trailer King Pin Lock - 2999DAT

Average Customer Rating:  4.7 out of 5 stars   (15 Customer Reviews)

Easy-to-use collar locks around your trailer's king pin so that it cannot be hooked up to anyone else's hitch. Bright red color provides visible theft deterrent, and the chrome-plated, deadbolt-style lock can double as a receiver lock.

- 2999DAT

by: Tom09/11/2012


My first choice in king pin locks didn't work, the wedge from the Reese Sidewinder prevented me from placing the cap all the way up/around the king pin. This Master Lock was my 2nd choice. Good visibility, easy to place, but something about the lock mechanism makes it a bit tricky to get closed. As usual, great service from eTrailer.com! 54407



- 2999DAT

by: Andrew D.07/24/2017


Enclosed is a picture of the king pin lock I purchased from etrailer Great peace of mind for the RV when not using it Thanks 409883



- 2999DAT

by: John H.01/26/2017


I purchased this king pin lock for my fiver.......it fits perfectly and is well constructed. I have a Reese Fifth Airborne king pin ......the "wedge" is not an issue. I have purchased many items from etrailer and have been very happy with their service and products. No problem getting questions answered if needed. 335629



- 2999DAT

by: Neal B.09/25/2017


Received my Kingpin lock very quickly and was impressed with the overall service and e-mails for tracking my order and also the follow-up after receiving the lock. I will shop etrailer.com again! 436139



- 2999DAT

by: Richard C.07/06/2015


Just came back from camping.The products that your company sent me were excellent. I want to thank you for the great service again. 209643



- 2999DAT

by: Ben S.06/16/2017


It worked on my one trailer, but on my other trailer it wouldn't fit on the king pin far enough to put the pin through the bracket 394835



- 2999DAT

by: Keith Elliott09/26/2017


Lock collar was alittle tight but grind the pin bore out alittle and works find. No one has stolen the 5 th wheel yet! 436730



- 2999DAT

by: Kent T.09/06/2013


Works as advertised, received when promised. What more can you ask for? 98538



- 2999DAT

by: Chuck B03/02/2011


Fits well and weill add secturity when trailer is left out in storage. 8246



- 2999DAT

by: Steve04/16/2017


Fast shipping fits great ,just what I needed . 368099



- 2999DAT

by: Rick B.03/29/2017


Good 5th wheel pin lock. Works as descr iption. 360231



- 2999DAT

by: Sammy M.05/17/2012


Thank you for the fast delivery. 40840



- 2999DAT

by: David11/18/2017


Exactly what I was expecting. 453244



- 2999DAT

by: Sherry03/24/2016


Excellent and fast shipping. 241593



- 2999DAT

by: kristy p02/02/2012


Works great 30890


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Do you have a question about this Trailer Lock?

VS

Master Lock Heavy-Duty Coupler and Latch Lock Combo for 1-7/8", 2", 2-5/16" Couplers




Code: 3784DAT


43 reviews

Retail:$63.56

Our Price: $51.33


Quantity: 


Product Specs:

Trailer Locks

Coupler Lock

Surround Lock


Standard Coupler Lock

Keyed Unique

Steel

Fits 2-5/16 Inch Ball

Master Lock


Whether your trailer is being towed or being stowed, this rugged lock combo deters trailer theft. Heavy-duty steel coupler lock fully surrounds coupler when trailer is unhitched. Keyed-alike latch lock secures coupler to tow vehicle during transit.

Video of Master Lock Heavy-Duty Coupler and Latch Lock Combo for 1-7/8", 2", 2-5/16" Couplers


Customer Reviews

Master Lock Heavy-Duty Coupler and Latch Lock Combo for 1-7/8", 2", 2-5/16" Couplers - 3784DAT

Average Customer Rating:  4.4 out of 5 stars   (43 Customer Reviews)

Whether your trailer is being towed or being stowed, this rugged lock combo deters trailer theft. Heavy-duty steel coupler lock fully surrounds coupler when trailer is unhitched. Keyed-alike latch lock secures coupler to tow vehicle during transit.

- 3784DAT

by: Kenneth S.12/31/2013


Works and looks great, Did have to play around with it a little before figuring out the best way to install that would make a tight fit. Did use the additional part, that is included for 1 7/8 hitch, on my 2 5/16 A -frame hitch to make a snug fit. When installed, the looks are very deterring in the sense that it looks like a lot of work to cut off, not to mention covers the entire ball hitch. Nice work MasterLock. 111624


Comments

Have been very happy with this lock and have had a lot of people ask where I bought it. Still looks and works great and has worked well even in below zero weather since we moved to the north where it gets much colder over the winter months. I still recommend this to anyone looking for that total secure hitch look and feel.

Kenneth S - 12/31/2014

8309

- 3784DAT

by: William H.04/08/2014


After the theft of our wood trailer, we purchased three master lock heavy duty coupler and latch lock combo for each of our three trailers - wood, boat, and camp trailer. The lock system has several security components allowing less possibility of break in and theft of the trailer. The wood trailer lock fits well and has allowed us the freedom to park the trailer outside of our gated property without the fear of theft. We will use the other two when in use of the boat/boat trailer at the parking lot to secure the trailer from theft as well as the camp trailer while camped from place to place to allow us the freedom to travel away from the trailer during our stay in those locations without the concern of theft. Well worth the price in giving us a peace of mind. I only wish we could have had them keyed to match so we did not have to keep three sets of keys on our key rings and remember which goes to which. 124309



- 3784DAT

by: Dave05/12/2015


I bought this lock because could not get the Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers for another month. ( Out of stock) The Master Lock is OK but as a lot of the reviews on the lock it is so loose seems like going to fall off when mounted on the trailer. I have the 2-5/16 coupler. They have a good idea but did not carry out on there idea to make it a good product. So not to very happy with it. I will have to do some mods on it to make it fit better. Not dissatisfied with etrailer have bought a lot of items from them and had no trouble with the order or the shipping and they keep you informed THANKS etrailer 192040



- 3784DAT

by: ken k10/07/2016


E trailer says I bought this a year ago. Actually we bought 2. 1 for a jobsite trailer and 1 for an equipment trailer. About 6 months ago our job trailer had a robbery attempt. They never touched the ball lock, but can opened the door. If it was just a pad lock I am sure they would have taken the trailer. One of our equipment trailers was taken, a couple of years ago, and that only had a pad lock, and was parked on our property. It takes a little time to get used to installing it, but after a couple of times it get very easy. 304472



- 3784DAT

by: Kevin W.09/03/2013


Price was good, shipping was fast. The coupler lock works for me and I am satisfied with my purchase. However, the lock does not fit snuggly on the coupler. I feel that it is secure and provides me peace of mind as there have been a rash of trailer/equipment thefts in my area recently. I suspect the reason it isn't snug is because it is designed to fit several different coupler sizes. Nevertheless, I don't think anyone will be able to remove the lock easily so I feel confident that my trailer is secure. 97981



- 3784DAT

by: J04/13/2016


Rated as good just because it seems better than most I could find but.... Looks good but looks can be deceiving; fits loose, black bottom part is plastic and probably couldn't fend off a regular hammer let alone a 5 pound or more which would expose the guts of the lock...game over. Grey housing looks like steel but have my doubts about its quality/strength. I would like to see a video of how long it would last against a crow bar and 5 pound hammer... my guess, not long. May return it. 244074



- 3784DAT

by: JW06/01/2014


Purchased for a 2" receiver and although it is a substantial, heavy duty unit it fits "sloppily" on the hitch and you need to use a 2" x 2" metal shim that is supplied with the lock that slides under the top of the unit. Over time, that shim could become misplaced. I am going to try and use some industrial double sided tape to hold it in place so it won't get set aside and lost when not in use. It does fully cover the hitch (sides, top and bottom) and looks like it will deter thief's. 133570



- 3784DAT

by: Luke Lewis08/05/2016


This lock is awesome! I have the older model of this, and it didn't fit my boat trailer very good.... BUT this model fits snug and it looks extremely tough and deterring. This lock is a huge improvement over the old model. I would definitely buy another, and I am very happy with my purchase. I use this lock to keep my 28' Offshore fishing boat secure, and I can sleep at night 280260



- 3784DAT

by: Jim C.05/06/2017


The product fits well. Not a big fan of the vacuum packaging. They are alway hard to open and can cut you if you're not real careful. I know it looks great on the shelf at the store but it is a real pain in the butt to open. I'm wondering how tough this thing is seeing it in person now. I hope someone doesn't just stick a crowbar in it and pry it off. 377150



- 3784DAT

by: Ross B.02/17/2014


Quality, cost effective solution. My company has started to use these to secure trailer units that we store at remote, semi-secure locations where they are used. We have also bought some to lock-out trailer units that are in need of service. Being able to order them with matching keys would be a benefit. 116759



- 3784DAT

by: Rick N.07/22/2016


I live in a small town in western Texas, and this year we've had some crazy weather, from deep freezes, heavy rains winds and hail, to extreme heat. This lock has handled every minute of it. I've had this lock for a year now and it works just as great as it did the 1st day I got it. Highly recommend. 275223



- 3784DAT

by: Mike B08/16/2016


Shopping with etrailer is great! Coupler lock does fit, but it seems a little loose. The latch lock fits tight and seems fine. The only way to get a "great" review is if someone attempts to steal the trailer and cannot, which I hope doesn't happen. 284358



- 3784DAT

by: Matthew S02/02/2017


This lock is plastic on the bottom and metal on the top. I think having the two locks for the connection is better than one. There is no opening for a crow bar. 338133



- 3784DAT

by: Ted S04/11/2017


Excellent product, it was everything the review said it would be. Easy to use, but yet strong and study when in place. Would recommend to everyone. 365865



- 3784DAT

by: Haylie S09/18/2017


Reesa T was very helpful in referring me to this product. She answered all of my questions and made the experience enjoyable. Thank you! 433595



- 3784DAT

by: Tom T08/23/2011


Well made, easy to use. 22593


Comments

Will the latch lock fit a Titan surge coupler Aero 7500. The security pin on the coupler is awfully small.

-- comment by: Don - 07/22/2013

1794

I pulled one of the MasterLock coupler locks and one of the Titan Aero couplers from our warehouse and did some measuring. The MasterLock pin has an OD of .275 inches. The retention pin on the coupler measures .311 inches. The pin diameter checks out, the problem is the length. The pin would not be long enough to span through the latch and allow the lock to engage.

-- Patrick B - 7/30/2013


- 3784DAT

by: Ron M.02/06/2015


When I got the lock it was even better than I could have even thought. Great product great price you will not be disapointed! 172598



- 3784DAT

by: virgil w04/10/2012


Great piece, I was really impressed. It would definatly take torches to get this thing off the trailer 36808



- 3784DAT

by: Jake W09/09/2017


Great product. I do wish I could order additional keys. Most secure box tongue lock I’ve seen. 430428



- 3784DAT

by: George S.10/22/2011


Perfect. Just what I wanted. Great price and fantastic fast shipping. Free and only 3 days!!!! 25956



- 3784DAT

by: Matt11/04/2017


I have not installed it yet but it looks stronger than the aluminum one I have on there now. 448976



- 3784DAT

by: Gary10/26/2017


Works like it should. Very easy to put on took only a few minutes and was ready to go. 446216



- 3784DAT

by: John K.10/04/2016


Outstanding customer service!!! Product quality was much better than I expected! 303049



- 3784DAT

by: John K.02/01/2012


Great product, it seems to be very heavy duty and it also fit nicely on my trailer. 30810



- 3784DAT

by: Jerry F.06/10/2016


I recommend this lock combo for the trailer coupler.I like the key alike option. 259752



- 3784DAT

by: Martin08/21/2014


from Wentzville, USA to Quebec City, Canada in 3 days..WOW thank's Etrailer !!! 147968



- 3784DAT

by: CP04/23/2014


I have purchased these products from you before. These locks work great. 127004



- 3784DAT

by: Michael P02/25/2014


Very solid. Should do a great job of making it difficult for thieves. 117606



- 3784DAT

by: Ron C08/18/2016


Receiver lock was delivered quickly and fits my 2 5/8 hitch perfectly. 284943



- 3784DAT

by: Greg D05/24/2013


Fits a little looser than what I'd like but overall a decent product 81793



- 3784DAT

by: Marty W10/06/2017


It’s not coming off without serious power tools and a lot of noise. 440178



- 3784DAT

by: Rex07/23/2017


Fast shipping. The coupler lock fits my coupler as it should. 409767



- 3784DAT

by: Mark M01/12/2017


poor lasted about a month and lock system would not function. 331954



- 3784DAT

by: JohnR08/02/2017


I haven't used the item yet so I can't give an honest review 413909



- 3784DAT

by: chris c05/20/2012


the boat is still in my yard...need I say more? easy to use 41054



- 3784DAT

by: Tommy D04/28/2017


Great product and great service shipping was fast 373581



- 3784DAT

by: Roger H10/25/2016


Great products, great service, fast del ivery 310362



- 3784DAT

by: virgil w04/10/2012


Awesome piece, better than I expected. Thanks 36807



- 3784DAT

by: Jimmy D09/25/2013


Excellent Product, great customer servi ce! 101481



- 3784DAT

by: Fernanda02/14/2014


Great product and easy to install. 116527



- 3784DAT

by: debM05/08/2017


love it quick delivery 377996



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by: Ted T Selever06/19/2015


Great Product 204634



- 3784DAT

by: Charles W08/16/2016


works 284107


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Do you have a question about this Trailer Lock?