Coupler Lock for Bulldog Collar Lok Coupler to Lock the Coupler to a Trailer
Updated 06/16/2014 | Published 06/15/2014
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Question:
I just picked up a used trailer with a bull dog collar lok coupler. Is there any way to lock the coupler when hooked up onto the ball? I sometimes leave the trailer hooked up to the tow vehicle overnight or for a few days and was looking for some way to prevent someone from unlatching my trailer from tow vehicle, hooking it up to their truck and driving away. Thanks...
asked by: Bob
Expert Reply:
For your Bulldog coupler you would have to use the Trailer Coupler Lock, part # 28012. This is a coupler lock with an inside width of 3-3/8 inches. I pulled the Bulldog coupler from our warehouse and measured the size of the lock pin that goes in the coupler. It measured 5/16 inch diameter and a length of 2-3/4 inches. I tried the lock in the coupler and it fit and did keep the collar lock from opening. See the picture to the right that will show it installed on a similar coupler.
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