Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Master Lock Trigger Lock for 1-7/8" and 2" Couplers
Video of Master Lock Trigger Style Coupler Lock for 1-7/8" and 2" Couplers
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
This is a simple to use lock. It is intended for trigger style coupler latches, like this. You see about a half inch span at the most. What this does is the key goes through there, like any other lock, and the pin comes apart. You slide through the latch, push the pin back in and there you are. It is simply installed and your coupler will not come off the ball. There you have it for part # 605DAT, the MasterLock solid brass coupler lock.
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Average Customer Rating: 
4.8 out of 5 stars (6 Customer Reviews)
by: Bob01/10/2011
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Hitch lock Had this lock before and liked it. Bought another one and it was shipped to me very fast.5282
by: Jeffrey04/11/2013
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Excellent lock. The hasp on the receiver covers 95% of the bolt so there is nothing to cut. Feels well made and heavy for its size. Good theft deterrent. 75381
by: David03/15/2013
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Works perfectly and fits as desired. 71026
by: Robert03/09/2013
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Well built, sturdy, works perfectly with my trailer.69773
by: Chris D07/23/2012
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Small and easy to use. 49062
by: Bill M.03/04/2012
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It was a little bit snug on the coupler on my trailer, but it did fit, and the lock feels very secure. No worries about someone un-coupling it at a rest stop.33099
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