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Locks > Trailer Lock > Coupler Lock > Surround Lock > Standard Coupler Lock > 1-7/8 Inch Coupler, 2 Inch Coupler, 2-5/16 Inch Coupler > Keyed Alike > Steel > Master Lock

379DATLocks 379DATLocks 379DATLocks 379DATLocks 379DATLocks 379DAT

Master Lock Universal Trailer Coupler Lock

Master Lock Locks

Rating: ratingratingratingratingrating
6 reviews


Code:   379DAT

Price:$34.95

Shipping Weight: 3 pounds

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Master Lock Locks - 379DAT

Guard against trailer towaway theft with this universal-fit coupler lock. Durable steel frame fits around 1-7/8", 2" and 2-5/16" ball couplers, providing both a visible and mechanical theft deterrent.

Features:

  • 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
  • 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
  • Boasts integrated, weather-resistant cover that keeps dirt and moisture out of keyway
  • Includes 2 keys
  • Limited lifetime warranty


379DAT Master Lock Universal-Fit Trailer Coupler Lock



Video of Master Lock Universal Trailer Coupler Lock


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

Video review masterlock lock kit 379DAT
Master Lock Universal Trailer Coupler Lock Review

Video Transcript for Master Lock Universal Trailer Coupler Lock Review

Today we are going to show you part number 379DAT from Master Lock. This is the coupler lock itself and we are going to use this on a typical coupler. You use a two inch ball. This will either work on 1 7/ 8 inch or two inch also. Simply the ball part goes into the coupler itself. You can latch it down into place like a ball. The whole body slides back into place. Slide it on as far as possible. Take the key, unlatch it. Then it is locked. That part of the coupler is secure. All right with that, that covers our review of part number 379DAT from Master Lock.






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Customer Reviews  -  Write a review about this product

Master Lock Universal Trailer Coupler Lock - 379DAT

Average Customer Rating:  ratingratingratingratingrating3.7 out of 5 stars   (6 Customer Reviews)




Master Lock Universal Trailer Coupler Lock - 379DAT

ratingratingratingratingrating by: Laura08/12/2011

Is this review helpful?


The ease of ordering was great and the product arrived as promised. The product itself was less than expected. It is made of plastic and I'm not sure it was the right choice. I will not return the product, but will look for something else that I feel is more substantial.21673



Master Lock Universal Trailer Coupler Lock - 379DAT

ratingratingratingratingrating by: jerry607/30/2010

Is this review helpful?


So far been great ,2 years and no problems easy to install and take off , gives some security for the trailer left in a parking lot over night. Worth the money3302



Master Lock Universal Trailer Coupler Lock - 379DAT

ratingratingratingratingrating by: Rob P01/16/2012

Is this review helpful?


Lock feels a bit cheap. Steel feels like Pot Metal. I dont think it would take too much effort for a theif to remove this. Fits on trailer pretty loose, moves around quite a bit. 29783



Master Lock Universal Trailer Coupler Lock - 379DAT

ratingratingratingratingrating by: Brian08/21/2011

Is this review helpful?


Reasonable product - Reasonable price 22431



Master Lock Universal Trailer Coupler Lock - 379DAT

ratingratingratingratingrating by: Brian D.06/27/2011

Is this review helpful?


This is the first of three trailer locks I've purchased that actually WORK for my trailer. Although I would prefer a heavier material for it to be made of, it works wonderfully.17991



Master Lock Universal Trailer Coupler Lock - 379DAT

ratingratingratingratingrating by: Robert C.04/23/2011

Is this review helpful?


Excellent product. Works exactly as advertised. 100% satisfied.12250




Ask the Experts about this Master Lock Locks
Expert Answers about Master Lock Universal Trailer Coupler Lock - 379DAT                                            Do you have a question about this Locks?


  • Trailer Coupler Lock to Fit a 2011 Rockwood Signature Travel Trailer
  • I checked out the coupler on the 2011 Rockwood Signature Series Trailers online. The coupler is very different that other manufacturers, but I believe that we have an option that will work for you. The Maximum Security Universal Trailer Coupler Lock, item # DT25013, should work as long as the coupler width at the center of the ball is not greater than 4-1/2 inches. It looks to me like the sides of the Master Lock Universal Trailer Coupler Lock, item # 379DAT, would interfere with the construc
    view full answer...

  • Will Master Lock Universal Trailer Coupler Lock Fit a RAM 2-5/16 Coupler
  • I did a little research on RAM couplers. From what I saw, the Master Lock Universal Trailer Coupler Lock, # 379DAT, will fit the standard coupler type with a 2-5/16 inch ball size or the collar lock type that is more pointed at the end. If your coupler has a large lip around the outside where the lock would attach then it will not fit. If it does have a large lip but the width of the coupler from side to side is less than 4-1/2 inches, you could use # DT25013KA.
    view full answer...






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