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Trailer Coupler Lock - Deadbolt Style 7/8" Span

DeadBolt Locks

(12 reviews)

Code:   RC6


Shipping Special

Shipping Weight: 0.47 pounds

Keyed Alike?: 


DeadBolt Locks - RC6

Coupler lock for tab style couplers

  • Pin Diameter: 1/4"
  • Dead Bolt Receiver Style with Flush Locking Design
  • Covered Key Slot Prevents Corrosion
  • Silver Colored Key
  • Helps Prevent Coupler Release From Ball
  • Helps Prevent Attaching Unattended Trailer To Ball
  • Multiple Locks are Available Keyed Alike
    • Simply select the keyed alike option from the drop down menu above and enter the number of locks needed into the quantity box.

Trailer Coupler with Lock
Alternate View of Trailer Coupler with Lock
Alternate View of Trailer Coupler with Lock

Video of Trailer Coupler Lock - Deadbolt Style 7/8" Span

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

Video review deadbolt trailer coupler lock rc6
DeadBolt Trailer Coupler Lock Review

Video Transcript for DeadBolt Trailer Coupler Lock Review

Today we're going to be taking a look at part number RC6. This is the Deadbolt Coupler Pin and Lock. It's going to have 1/4" diameter when it comes to the pin. It's going to have a span from this point here to this point here of 7/8". It's got some really nice textured surfaces on it. That way you can get a nice secure grip. It's got a rubber coating on this side and a steel finish on this side.

On this side it's going to have the dimples. It's going to have a steel body, steel construction. It's going to stand up well against rust and corrosion, and it's going to provide a really long life. Right up here, if you undo the cap, it's going to expose the slotted keyhole. It's going to come with two keys. That goes in there.

Whenever you're not using it you can just close that dust cap back up. It's going to keep any dirt or grime out from the lock core, which is also going to help prevent corrosion. Now we're ready to install it right here on our coupler. We have our utility trailer here today and we're ready to park it for a while and leave it unattended. We want to make sure that nobody is going to be able to come and hook up and run off with the trailer. I did say that this had a span of 7/8" so you want to be sure that the distance right here on the latch is equal to or less than the measurement of the span.

To undo it you just hold the key in the slot, unthread the two pieces. We're going to take the pin, put it through that opening. As you can see without the pin installed we can lift up that latch and we can make the connection to the hitch ball. We're going to put that in. Make sure it's flush up against this side. Place the lock on the other side.

Then start twisting the key in a clockwise direction. Once we get that all the way tight the key's going to come disconnected. It's just going to simply come out of the key slot so we can close up by securing it with that dust cap. That's locked on there and we can not lift up on that lever which means nobody is going to be able to come and connect to the coupler. If you already have your trailer connected to your vehicle, installing the coupler pin and lock will prevent the release from the hitch ball that it's connected to. The overall length from end-to-end is going to give us a measurement of abou4 4-3/8" to that point there. That's going to do it for today's review of part number RC6. This is the Deadbolt Coupler Pin and Lock. .

Customer Reviews

Trailer Coupler Lock - Deadbolt Style 7/8" Span - RC6

Average Customer Rating:  4.9 out of 5 stars   (12 Customer Reviews)

- RC6

by: Larry11/20/2012

Just what I need to keep my trailer and spare tire in place, thanks. 59814

- RC6

by: Mariano G.04/27/2014

This is a great product to have when you have two trailers and your Hitch receiver keyed alike. Etrailer made it happen with one easy call, thanks again! 127574

- RC6

by: Jeff Mc09/30/2014

WhEn I called in I was reminded that I could have this keyed alike with a hitch pin lock I had bought previously. Awesome customer service by Dana!!! 153716

- RC6

by: Jeff04/02/2013

Product is just as described. Seems to be a quality built product. Fits well with the angled surfaces were the flat ones have not fit in the past. 73880

- RC6

by: Lak12/29/2011

Item arrived in a timely manner and was well packaged. The trailer coupler lock works exactly as described and is highly recommended. 28839

- RC6

by: Ron P.03/25/2014

Great service,E Trailer the only ones I have to go to when we need something here at the ranch for the trailers. Thanks 122037

- RC6

by: Chris R.06/13/2014

I bought a hitch lock and two coupling locks. They all arrived on time and keyed the same. Great service! 135529

- RC6

by: Gavin02/21/2013

Great products and super fast deliver. Highly recommended. 67150

- RC6

by: Gary T04/03/2014

Great Products and a great company to do business with 123667

- RC6

by: Paul E08/21/2014

Reasonably well designed product and good price. 147818

- RC6

by: Hugh02/26/2013

the perfect lock 67873

- RC6

by: Maximus03/06/2014

good product 119683


Ask the Experts about this DeadBolt Locks
Do you have a question about this Locks?

  • 3/8 Inch Diameter Locking Pin needed for a Triton Covered Snowmobile Trailer Lock
  • The DeadBolt Lock, item # RC6, has a shank diameter of 1/4 inch and span of 7/8 inches, if these dimensions will work for the cover latch on your snowmobile trailer cover, then the lock should work. You may want to consider the DeadBolt Lock Stainless Steel , item # RC6SS, for maximum weather protection and corrosion resistance, If these locks will not work for your latch we also have the Kuat Bike Rack Hitch Lock, item # KUATLOCK, which has a 3/8 inch diameter Pin and may work better...
    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 DeadBolt Trailer Hitch Receiver And Coupler Lockset, part # 7685. 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 trying...
    view full answer...

  • Getting Keyed Alike Locksets for Hitch, Coupler and Cable Locks
  • Yes, you can get all of the locks you have mentioned keyed alike as long as you order from our Keyed Alike locks page. If you order all the locks you need at the same time they will come keyed alike. If you decide you need another lock keyed the same later you can call our customer service line at 1-800-298-8924 and request a lock, as long as it is on our Keyed Alike locks page, with the same key by giving them the key number you have. When you order please be sure to select keyed alike...
    view full answer...

  • Availability of Keyed Alike Coupler Locks
  • The Butterfly Style Trailer Coupler Lock, item # 3808, is not available at this time keyed alike. We have several keyed alike coupler locks that may work for you. Item # RC6 and # RC6SS, have a 7/8 inch span and item # 7690 and RC2ss have a 1/2 inch span for attachment to the trailers coupler.
    view full answer...

  • Comparison of the Deadbolt Coupler Lock and Master Lock Adjustable Coupler Lock
  • The main difference between the Deadbolt Coupler Lock, item # RC6, and the Master Lock Adjustable Trailer Coupler Lock - Stainless Steel, item # 2847DAT, is the style of the locks. The Masterlock has the advantage of being able to be used on many different styles of coupler and has a normal style key that can be duplicated at a local hardware store. The Deadbolt has a short span, 7/8 inches, so it can be flush to prevent removal. This style is more compact than the stick and block...
    view full answer...

  • Latch Width and Hole Diameter for Trailer Coupler # CA5400
  • I went out to the warehouse and pulled trailer coupler # CA5400 to measure the latch width and its hole diameter. The latch outside width is just over 7/8 of an inch at 0.88 inches. And the hole diameter is just over 5/16 of an inch at 0.32 inches. If you end up needing a lock the Diversi-Tech lock, # DT30010, would be a good choice. It has a 7/8 inch span and a 1/4 inch diameter pin. We also have DeadBolt lock # RC6 with the same measurements.
    view full answer...

  • Couple Lock Recommendation that Can be Keyed Alike
  • I have a solution for you, but the Bulldog Coupler Lock part # BD580410 that you referenced can not be keyed alike. For a similar lock that can be keyed alike you would want the DeadBolt Lock part # 7691. The usable span of this lock is 2 inches. For one with a 7/8 inch span you would want the # RC6. Or for 2-1/2 inches, part # 7692.
    view full answer...

  • Replacement Keys for DeadBolt Trailer Coupler Locks
  • Yes, the keys from the DeadBolt Trailer Coupler Lock, # RC6, and other DeadBolt coupler locks can be replaced if they are lost, but I strongly recommend recording the key number that is stamped on the key. The key number is used for replacement keys, so I recommend writing the key number down and keeping it somewhere safe just in case you lose the keys. Replacement keys can be purchased using part # CTJKEY.
    view full answer...

Do you have a question about this Locks?

Info for this part was:

Photos by:
Theodore B

Expert Research:
Robert G

Expert Research:
Michael H

Expert Research:
Jeff D

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