Skip to content

Master Lock 377 Trailer Coupler Lock (Pack of 4)

SKU 377KA
Original price $293.28
Original price $293.28 - Original price $293.28
Original price $293.28
Current price $244.40
$244.40 - $244.40
Current price $244.40
Pack of 4

The Master Lock No. 377KA 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 mechanism provides resistance to picking and prying. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

  • Fits 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) trailer couplers
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion
  • Keyed Alike