Each come with its own key. Replacement barrel locks help secure your accessory using an HD or XD Hitch system to your vehicle or wall at home, in the garage or workshop. Suits all HD Standard Hitch range Bodies (8159, 8160, 8161, 8162, 8163, 8179, 8180, 8181). Also suits all XD Hitch range Bodies (9000, 9001).