Master Lock Trailer Lock, Trailer Coupler Lock, Fits 2-5/16 in. Couplers, 378DAT 377DAT Trailer Hitch Lock

★★★★★ 4.7 83 reviews

$100.89
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$100.89
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 212816686 Release Date 2026/04/12 List Price $40.36 Model Number 212816686
Category

This bundle contains two items, 1x Master Lock 378DAT Trailer Coupler Lock and 1x Master Lock 377KA Trailer Coupler Lock: The Master Lock 378DAT features a 2-5/16 in. (59 mm) trailer coupler lock, designed to resist rust and corrosion. The advanced locking mechanism provides resistance to picking and prying. The Master Lock 377KA features a trailer coupler lock, designed to fit 1-7/8 in. (48 mm), 2 in. (51 mm) and most 2-5/16 in. (59 mm) trailer couplers. The advanced locking mechanism provides resistance to picking and prying. The Limited Lifetime Warranty provides peace of mind from a brand you know and 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 2-5/16 in. (59 mm) trailer couplers; Does not fit Gooseneck Trailer Couplers
  • Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers
  • Trailer lock is best used for vehicles, trailers, and RVs
  • Trailer coupler lock features advanced locking mechanism to resist picking and prying
  • Trailer hitch lock is constructed from zinc to resist rust and corrosion
Brand Master Lock

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4.7 out of 5
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83 ratings | 34 reviews
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