Protect your unattended trailer with this Master Lock Trailer Coupler Lock. This coupler fits most trailers with 1-7/8â - 2" couplers. Rugged die-cast zinc body resists corrosion 4-pin tumbler cylinder helps prevent picking. Ratcheting shaft fits most couplers. With front access key lock for ease of accessibility locks or unlocks with just a 90o turn of the key (2 included).
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