Master Lock's 389DAT is a universal trailer coupler lock that is designed to fit most 1-7/8", 2", and 2-5/16" couplers. The advanced locking mechanism provides resistance to picking and prying.

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Master Lock's 389DAT is a universal trailer coupler lock that is designed to fit most 1-7/8", 2", and 2-5/16" couplers. The advanced locking mechanism provides resistance to picking and prying.

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