Recommended Coupler Locks for Bulldog Cast Head Coupler # BDA256C0317  

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Expert Reply:

I pulled one of the Bulldog # BDA256C0317 couplers off the shelf, and tested it with various coupler locks.

Other than our etrailer.com locks like the # e98890 that pass through the latch, I found three locks that would work pretty well for you.

The fit of the Blaylock EZ Lock # BLTL-33 was a bit loose, but once the locking bar was slid into place, I was unable to remove the lock by hand, although a pry bar might get it off.

The Master Lock Universal Trailer Coupler Lock, # 379DAT installed securely and worked well, as did the Master Lock Trailer Coupler Lock # ML389DAT.
Keep in mind that locks are for keeping honest folks honest. A determined thief is eventually going to get what they want. The idea is to slow him down or make him move on to somebody else's stuff.

If you would like to see a video showing the Master Lock # 379DAT in action, click the provided link.

expert reply by: Mike L

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