2-Pack Keyed Alike Universal Coupler Lock

Master Lock

List Price: $109.95
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Universal Coupler Lock - 2-Pack Keyed Alike

Product Details

The Master Lock No. 379ATPY features a universal trailer coupler lock, designed to fit 1-7/8 inch (48mm), 2 inch (51mm) and most 2-5/16 inch (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. Package of 2 keyed-alike.

  • Universal trailer coupler lock fits 1-7/8 inch (48mm), 2 inch (51mm) and most 2-5/16 inch (59mm) couplers
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion


Brand Master Lock
Coupler Style Latch Style Coupler
Finish Black
Fits 1-7/8 Inch, 2 inch and 2-5/16 Inch Couplers