2" & 2 5/16" Trailer Coupler Lock
Item No. 72711
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2" & 2 5/16" Trailer Coupler Lock
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2" & 2 5/16" Trailer Coupler Lock

2" & 2 5/16" Trailer Coupler Lock is rated 3.3 out of 5 by 3.
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Item No. 72711
$24.69 $36.66
Save $11.97 ( 33% Off )
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Strong, tough and now even easier to use.

The BLOCKHEAD Trailer Coupler Lock for unattended trailers features high tech materials that redefine the traditional lip-engaging coupler lock. Extruded, tempered aluminum body provides superior strength-to-weight ratio, a distinctive look and great value. Simple, rugged push-button lock mechanism. Durable, automotive exterior grade powder coat finish. Includes two double-sided, automotive-style keys. Shuttered key opening prevents clogging and freezing.

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  • Closed-in front for a more secure, sleeker look
  • A simple 1/4 turn to lock and unlock
  • Core Removal System allows re-keying
  • Unit Weight 1.40 lb
    Brand C T Johnson
    MFG Part No. TCL3-AS
    2" & 2 5/16" Trailer Coupler Lock is rated 3.3 out of 5 by 3.
    Rated 1 out of 5 by from Useless I bought a new a-line camping trailer from Camping World. When going through the store to get a few things we needed, the salesman recommended the block-head hitch lock, and said we should get the one that fits 2" to 2 1/2 " ball, in case we decided to get a larger trailer later. It is easy to put on- just slip it over the hitch, press up on the locking post on the bottom, and press the lock in. However, the block did not fit tightly, and wiggled around a lot. After getting it parked in the driveway and locked up, we were walking around putting things in storage, etc, and bumped against it and it fell off onto the ground! No use whatsoever! We returned it to our local Camping World, and exchanged for the next smaller size. That one did not have a large enough slot to fit around the flange on the hitch. It went back, too. We are currently using a pin lock - lock down the hitch as though it's on a ball, and put the pin lock through. It will keep "honest people" from stealing it. The pin is so small a hacksaw could get thru in a minute. The only real way to keep a trailer is to put a boot on it and even then, a person could haul it up onto a roll-back and away you go. I am still trying to figure out what to do to secure our little trailer.
    Date published: 2016-05-21
    Rated 4 out of 5 by from Blockhead trailer coupler lock Had to grind mine slightly with a dremel to make it fit. Fits fine now. Discovered the key blanks aren't very standard if you ever want to cut an extra key. Pro's - easy to install and foolproof against bolt cutters.
    Date published: 2014-05-30
    Rated 5 out of 5 by from Blockhead Trailer coupler lock I find it very convenient plus it does not take a rocket scientest to install it.
    Date published: 2013-12-06
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    hitch fit

    I have a 2015 Jayco travel trailer, 23MB model. I am having a tough time finding a lock to secure the coupler due to it's design. According to the dealer, I'm not the only one. The rim on my hitch is 4 1/2 inches wide from edge to edge. 3/4 inch from the front back to the start of the ball area. would the 72711 coupler lock fit this hitch.
    Asked by: Anonymous
    According to your measurements, it sounds like this product will fit your coupler.
    Answered by: cw_staff
    Date published: 2019-03-08

    Withstands sledgehammer?

    With the square edges sticking out it appears it would be easy to make a strong hit on it with a sledgehammer. Has this possibility been tested?
    Asked by: DougE
    The manufacturer tested this versus sledgehammers and had no issues at all with it holding up to punishment.
    Answered by: cw_staff
    Date published: 2019-03-08
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