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Master Lock 387 King Pin Lock for Semi-Trailers, RV and Fifth Wheel Trailer, Keyed Alike

Model No. 387KA
Original price $137.90
Current price $116.44
Quantity Price
1-23$115.47
24+$105.86

The Master Lock No. 387KA features a high grade aluminum king pin lock offering lightweight but high security for semi-trailer, RV, and fifth wheel trailer king pins. The visible red body and durable flag alert drivers that the lock is attached. Each king pin lock includes an integrated No 5 lock providing additional security and keying flexibility. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

  • Secures the king pin of semi-trailers, RVs and other fifth wheel trailers
  • Keyed Alike - order multiple locks to open with the same key or order to match other locks with the W1 cylinder
  • Renders bolt cutters useless
  • High grade aluminum is lightweight while providing high security
  • High visibility red body and durable flag alert drivers that lock is attached
  • Includes an integrated No 5 lock with all of its security and keying flexibility