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The Master Lock No. 387 High Security King Pin Lock secures the king pin of semi-trailers, RVs and other fifth wheel trailers to prevent theft and deter break-in's. Including an integrated padlock (No. 5), this locking device renders bolt cutters useless and the high-grade aluminum is lightweight while providing high security.<br><br>

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

king-pin-lock-for-semi-trailers-rv-and-fifth-wheel-trailer-387

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