The Master Lock No. 379DAT features a universal trailer coupler lock,
designed to fit 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) couplers.
The advanced locking mechanism provides resistance to picking and prying.
The Limited Lifetime Warranty provides peace of mind from a brand you can trust.
Resists rust and corrosion
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