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

          $25.30 USD
          Shipping fees will be calculated at checkout.

          • Free worldwide shipping

          • Free returns

          • Carbon neutral

          • Secure payments

          • 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
          Manufacturer Warranty DescriptionLimited Lifetime
          Manufacturer Part Number378DAT
          OEM Equivalent Part Number378DAT
          Unit Count1 Count
          ManufacturerMaster Lock
          UPC071649213236
          Global Trade Identification Number00071649213236
          Included ComponentsCoupler Lock, Two Keys
          Item Type NameCoupler Lock
          Model Number378DAT
          Compatible with Vehicle TypeTrailer
          Automotive Fit TypeUniversal Fit
          Material TypeAlloy Steel
          Finish TypePowder Coated
          Item Weight3.4 pounds
          Compatible With Vehicle TypeTrailer
          MaterialAlloy Steel
          A master lock banner showing a heavy-duty padlock and an Python cable lock
          Example title

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