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Master Lock Universal Trailer Coupler Lock
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Master Lock Universal Trailer Coupler Lock

Part #: MLK 379DAT
Line: Master Lock
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Features & Benefits

Warranty :Standard : Limited Lifetime

The Master Lock No. 379DAT features a universal trailer coupler lock, designed to fit 1-7/8 in. (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.


  • Universal trailer coupler lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) couplers
  • Universal trailer coupler lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) couplers
  • Easy to install and remove
  • Resists rust and corrosion

Specifications

VMRS Code 053007021

Safety Information

Vehicle Fitment Guide

Product Reviews