MASTER LOCK® TRAILER COUPLING LOCK

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*OBSOLETE* The Master Lock No. 377DAT features a trailer coupler lock, designed to fit 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) trailer couplers. The advanced locking me chanism provides resistance to picking and prying. The Limited Lifetime Warranty provides peace of mind from a brand you can trust. Universal trailer lock Secures trailer coupling to prevent theft Chrome finish to prevent rusting and corrosion Home | Locks | Automotive | Master Lock Show more