Master Lock 378DAT Trailer Coupler Lock, 2-5/16-Inch;
Master Lock 378DAT Trailer Coupler Lock, 2-5/16-Inch

The Master Lock No. 378DAT features a 2-5/16 inch (59mm) trailer coupler lock, designed to resist rust and corrosion. The advanced locking mechanism provides resistance to picking and prying. The Limited Lifetime Warranty pr...

Buy Now From Amazon

The Master Lock No. 378DAT features a 2-5/16 inch (59mm) trailer coupler lock, designed to resist rust and corrosion. The advanced locking mechanism provides resistance to picking and prying. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

  • Coupler lock is best used for trailers; Works best with Straight Tongue Trailer Couplers
  • Advance locking mechanism resists picking and prying
  • Designed to resist rust and corrosion
  • Fits most couplers 1-7/8 in. (48 mm), 2 in. (51 mm) and 2-5/16 in. (59 mm); Does not fit Gooseneck Trailer Couplers
  • Includes one trailer coupler lock, two keys
  • Coupler lock is best used for trailers; Works best with Straight Tongue Trailer Couplers
  • Advance locking mechanism resists picking and prying
  • Designed to resist rust and corrosion
  • Fits most couplers 1-7/8 in. (48 mm), 2 in. (51 mm) and 2-5/16 in. (59 mm); Does not fit Gooseneck Trailer Couplers
  • Includes one trailer coupler lock, two keys

Similar Products

Master Lock 470-377DAT Nickel Chrome Finish, Zinc Die Cast Coupler LockMaster Lock 377KA Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers, ChromeBlaylock TL-50 Gooseneck-Style Coupler LockMaster Lock - (4) Keyed Alike Trailer & Multi Purpose Padlocks, 37KA-4Trimax TCL65 Wheel Chock LockReese Towpower 7042100 Adjustable Coupler Latch LockCURT 23521 Black Trailer Tongue Coupler Lock, 7/8X-Chock Wheel Stabilizer - Pair - One Handle - 28012