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Old 01-13-2015, 07:04 PM   #1
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Bought a Coupler Lock...now I need help

Purchased a coupler lock for this older 2" coupler
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Well the one that we purchased does'nt fit (would rather not say what I bought, no negatives)

Anyone with this coupler have advice on what may fit?


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David & Diane
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Old 01-13-2015, 07:16 PM   #2
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I have a collection. That's what it took to get a fit. Use an RV catalog.
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Old 01-13-2015, 07:19 PM   #3
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Dave, Masterlock makes a lock that would probably fit this coupler. I use it on my boat. The locking portion fits over the lip at the front of the coupler. Remember, these things just keep honest people honest.
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Old 01-13-2015, 08:11 PM   #4
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Here's a link to the above mentioned coupler lock.

Master Lock 1-7/8" and 2" Trailer Coupler Lock - Stainless Steel Master Lock Locks 377DAT

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Old 01-13-2015, 08:16 PM   #5
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OLder version Master #35

The older version Master #35 fits the 1968 Marvel coupler for sure, I use one. There's one on eBay right now... $30 free shipping
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Old 01-13-2015, 08:49 PM   #6
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Originally Posted by ALUMINUMINUM View Post
The older version Master #35 fits the 1968 Marvel coupler for sure, I use one. There's one on eBay right now... $30 free shipping
Thanks, just bought it. Returning the one I bought previously tomorrow
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Old 01-13-2015, 09:21 PM   #7
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Won't a standard pad lock fit that one? I have been known to enlarge that hole slightly to make standard lock fit.

Perry
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Old 01-13-2015, 09:24 PM   #8
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Bought a Coupler Lock...now I need help

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Diversi-Tech Locks - DT25013
Fits most 1-7/8", 2" and 2-5/16" ball couplers
Works good on my Airstream

Ron


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Old 01-14-2015, 09:06 AM   #9
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DFlores, good choice.

The Master #35 has a nice smooth well fitted vintage appearance, that if painted same as coupler, may not be noticed. It's a good ol' USA made product from back when there was pride in manufacturing and the best materials were used. It wasn't made just to look like a coupler lock, it IS a coupler lock. It fits 2” or 2 5/16”.
Its Design is such that, unless you have all day and plenty of blades, it cannot be sawed off. Otherwise, you need an angle grinder, cold chisel, 5/8” diamond drill, slide hammer and 3/16” hex key, or maybe liquid nitrogen and an 8# sledge hammer could remove it.


A righteous product, it will slow or deter a casual amateur, or inadequately equipped thief from ball towing...
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Old 01-14-2015, 09:46 AM   #10
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I have used Master #35 for yrs. painted red. Last year when ready to to hook up couldn't find key had to call lock smith, he picked in 30 seconds, so they are not fool proof but I would not have any other kind.
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Old 01-14-2015, 10:32 AM   #11
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Yup, the Master-Lock key hole is indeed the Achilles’s Heel of this mechanism. I'd venture to say that the first-day class of “Lock Picking 101” is taught on Master-Locks.

Iris or thumbprint recognition retrofit??

I'm thinking to reset my tumbler pins to match the trailer's exterior access doors.

Why they are factory painted copper color is a mystery...
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Old 01-14-2015, 11:14 AM   #12
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Megahitch Lock Coupler Vault is another option. I won one at Alumafandango (Alumafandango trip – Day 6 | CasaRodante - Our House on Wheels). https://www.megahitchlock.com/products/
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Old 01-14-2015, 12:03 PM   #13
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Quote:
Originally Posted by Ron A View Post
Attachment 230392
Diversi-Tech Locks - DT25013
Fits most 1-7/8", 2" and 2-5/16" ball couplers
Works good on my Airstream

Ron


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This is the one I have and it works perfectly.
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Old 01-14-2015, 01:10 PM   #14
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I went with the MegaHitch lock after reading most of the posts on this forum about various locks. I ordered the silver one, and it is not too ugly, other than the red sticker on the side. It is all a crap shoot, but this gives me a bit of piece of mind.
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