Master Lock 5th Wheel Trailer King Pin Lock




Code: 2999DAT


12 reviews

Retail:$20.98

Our Price: $19.72


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:  4.6 out of 5 stars   (12 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: 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: 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: Sherry03/24/2016


Excellent and fast shipping. 241593



- 2999DAT

by: kristy p02/02/2012


Works great 30890


12
12


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Master Lock 1-7/8", 2", and 2-5/16" Trailer Coupler Lock - Nickel Plated Zinc




Code: 377DAT


60 reviews

Retail:$39.28

Our Price: $30.72

Keyed Alike?: 

Quantity: 


Product Specs:

Trailer Locks

Coupler Lock

Surround Lock


Standard Coupler Lock

Keyed Unique

Fits 1-7/8 Inch Ball
Fits 2 Inch Ball
Fits 2-5/16 Inch Ball

Master Lock


Nickel-plated die-cast zinc trailer coupler lock guards against trailer towaway theft. Fits most 1-7/8", 2", and 2-5/16" ball diameters.

Video of Master Lock 1-7/8", 2", and 2-5/16" Trailer Coupler Lock - Nickel Plated Zinc


Customer Reviews

Master Lock 1-7/8", 2", and 2-5/16" Trailer Coupler Lock - Nickel Plated Zinc - 377DAT

Average Customer Rating:  4.8 out of 5 stars   (60 Customer Reviews)

Nickel-plated die-cast zinc trailer coupler lock guards against trailer towaway theft. Fits most 1-7/8", 2", and 2-5/16" ball diameters.

- 377DAT

by: Jessie J09/18/2015


works great, fits well. Shipping was incredibly fast! Outstanding product support, Bill was great 226239


Comments

Very durable, holding up well to the outside elements. Great product highly recommend

Jessie J - 09/17/2016

21046

- 377DAT

by: CanDo07/03/2014


This hitch lock is strong and well made. It's also easy to install and secure; just what I was looking for. 138937


Comments

This is a quality product, it still works great.

CanDo - 07/03/2015

13017

- 377DAT

by: James02/14/2013


Product was exactlly what I ordered and expected. I purchased 2 locks and requested they be "keyed alike". I received the locks (that worked great, and were keyed alike) very quickly. I got several emails from real people that let me know the status of the shipping. This is the first time I have purchased a product from etrailer.com, but it will not be the last. The cost was 25% cheaper than retail. I could not find the product on retailers shelves. I found the product, saved money, and got it fast with etrailer.com 66300



- 377DAT

by: charlie06/26/2015


they worked perfect for my trailers 207605


Comments

great

charlie - 06/26/2016

18968

- 377DAT

by: 377dat03/04/2017


The assembly is not secure. Its construction and implementation allows for people with large crowbars to break the locks off. That is due to the loose-fitting of the ball and the retainer which doesn't allow you to make a tight fit into the receiver. I would rather that they offer hitch ball locks in sizes that the customer the customer needs so that a tighter fit can be achieved. To me this was a waste of money. 348328



- 377DAT

by: Bill L.09/09/2017


I purchased the Coupler lock #377DAT to aid in securing my utility trailer. I found it more sturdy that I originally thought. I installed quickly and easily and fits my perceived needs exactly. I use it together with a pin style coupler lock. Both work well and are worth every penny spent. I give etrailer 5 1/2 stars As a new customer, I am more than satisfied. 430469



- 377DAT

by: Robert H05/10/2017


Product appears to be made with quality materials and appears to work effectively to stop or deter theft. It was heavier than I expected which is a good thing, meaning it should stop and make a theft think about how much trouble it would be. I feel it should withstand attempts at theft and remain intact thus stopping someone from taking the trailer. 378840



- 377DAT

by: Master Trailer Coupler Lock10/24/2013


...nothing will keep a determined thief from stealing your stuff, but there are ways to make them look elsewhere for a target. The trailer coupler lock from Master makes this point. This thing feels bomb-proof & it's easy to use. My 13' Zodiac RIB on a trailer could be easy pickings if it wasn't for this. Money well spent... 104959



- 377DAT

by: Nathanael Hawkins02/27/2017


We purchased this about a year ago and so far there is no sign of rust or corrosion. I can't really rate the durability because thankfully, no one has tried to steal our trailer. But the build looks strong and hopefully it will hold up for many years. Overall we're glad we went with Master Lock. 346438



- 377DAT

by: mike morris11/20/2012


lock arrived today, have,nt tried it on traler yet, but found out that key was very hard to insert in lock for some reason, had to keep trying till i coud insert key to open. If there is some trick to inserting the key, please instruct me. merchandise came in a timely manner. thanks mike. 59836



- 377DAT

by: NB309/07/2017


Very robust product other than the ball is sized to fit a 1 7/8" coupler as well as a 2" coupler so the fit is a bit loose when installed in a 2" coupler. Would be a better product if it was available for the exact sized coupler that a person needed. 429884



- 377DAT

by: Ken W09/16/2017


Had to return this lock as it didn't fit our coupler. A 1976 trailer with a large roll/lip kept it from working. Lock was very heavy and seemed well made. Very easy to use. Would have been a nice lock had it fit our particular trailer. 433015



- 377DAT

by: Andy. E03/23/2013


I really like this style lock. Very sturdy and secure. I had already owned two others before this one and was very satisfied!! I really like everything about etrailer.com and will definitely order from them for future needs. Thanks. 72026



- 377DAT

by: Pat03/16/2011


I couldn't find a trailer lock to work on my car hauler anywhere in Denver, Colorado. etrailer had not only one but 5 that fit the bill. I love a choice. It got here in 2 days using regular shipping and fit like a glove. 9513



- 377DAT

by: Vernon W.11/03/2011


Picture of lock. 26495



- 377DAT

by: Mark S04/18/2015


I purchased 2 of these and had them keyed alike. These fit great and work excellent with very little maintenance. Very strong and dependable. Now access to my trailers is even easier. 186086



- 377DAT

by: Jim O.03/22/2016


Great lock, I looked at a lot of locks before choosing this lock and after owning this lock for a year I think I made the right choice. I would recommend this lock to anyone. 241246



- 377DAT

by: Dave W.03/07/2011


Product was shipped same day and arrived quickly. We purchased these locks in the past and the quality remains great. Will continue to do so in the future! Thanks etrailer! 8679



- 377DAT

by: joe m08/28/2015


Solid, well made. Looks like it will do the job. Web site was easy to navigate, very organized and helpful. Service was excellent; very fast delivery. Couldn't be happier! 222292



- 377DAT

by: Jim B.05/24/2017


Thank you so much for your assistance in selecting the lock that fit our needs. You helped to make the process easy and thanks also for the follow-up. jim 384400



- 377DAT

by: Earl (Jeff) Jefferson11/08/2013


This is a solid Lock. Well designed and build! Great shiny chrome finish. Looks very nice when put on the hitch coupler. Well worth the price 106786



- 377DAT

by: Dick M.06/03/2013


What a quality product. Really appreciate your fast shipment - only took a couple of days. Will definitely order from etrailer again. Thanks 83188



- 377DAT

by: A. Ervin07/09/2017


I have several of these style coupler locks and they work really well. Never had a problem with any of them. Very sturdy and durable!! 403627



- 377DAT

by: Gene T04/01/2014


Very solid, just what I was looking for. Definitely no worries about someone getting this off. Will use etrailer again. Thanks 123320



- 377DAT

by: Bruce S.10/03/2011


This lock was exactly what I needed. The quality is excellent and the price very reasonable. As always, shipping was fast! 25030



- 377DAT

by: Alaska SE09/08/2016


Received this lock along with a trailer hitch lock. Works on my trailer. Arrived as expected and would order again. 292392



- 377DAT

by: Marlan Hvinden07/13/2012


The locks are the same quality and construction as one I have owned for many years. Delivery was timely. 47794



- 377DAT

by: RB08/10/2017


Arrived early- product was as advertised. Would order from this seller again without reservation. 418658



- 377DAT

by: Ray M.03/18/2015


Extremely well made ... stainless steel lock is very robust and should provide good security. 179541



- 377DAT

by: Bill O07/22/2013


Looks execatly like photo...also appears to be very secure. Just what was needed ! 90851



- 377DAT

by: Bill F03/23/2014


Have had no problems using the trailer lock. It seems to do the job. 121854



- 377DAT

by: Ben H.11/25/2013


Lock was received before the promised date and works as promised!! 108447



- 377DAT

by: Fred S.05/23/2012


Product was better than expected, delivery time was great! Thanks 41451



- 377DAT

by: William C.06/25/2015


Perfect!! Can't just hook up and drive away. Love the lock!! 207227



- 377DAT

by: Dennis J11/12/2014


Just what I was looking for!! Also cheaper than Amazon!! :) 160696



- 377DAT

by: rachel05/16/2017


my husband ordered these for his trailers. easy to operate 381186



- 377DAT

by: Kevin G05/03/2017


Awesome and easy to install. Also looks good on the hitch. 375810



- 377DAT

by: 377dat06/21/2012


have one, for years, thanks,like catalog, if you do that. 45134



- 377DAT

by: Judy09/09/2017


Great item, was as described. Locks & unlocks easily. 430429



- 377DAT

by: Bert04/07/2017


No problèmes at all. One of the best in the market ! 364159



- 377DAT

by: jeremy g08/31/2016


well made product. nice option with keyed alike option 289501



- 377DAT

by: Rob108/19/2016


Great product, easy to use, fits well and looks good. 285453



- 377DAT

by: Les S01/28/2015


Nice product. shipped immediately. Great service. 171584



- 377DAT

by: Miles06/22/2015


Product seems exceptionally sturdy. Easy to use. 206415



- 377DAT

by: Hazel H.05/07/2015


Easy to use - works good; all you could ask for. 191172



- 377DAT

by: Mark05/13/2014


Product does exactly what it is designed to do. 130368



- 377DAT

by: Tim W07/21/2014


Works very easily and quickly. Chrome plated. 142502



- 377DAT

by: Steve L.06/12/2012


Way Solid Lock, No Way Anyone Is Getting Off. 43895



- 377DAT

by: Leonard B.10/21/2014


It arrived faster than thought it wood. 157294



- 377DAT

by: Hugh M12/21/2013


Great product! Solid and easy to use. 110789


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Customers compare 377DAT to these similar products




Do you have a question about this Trailer Lock?