Prepare your semi to be Ready for the Road Ahead , with the HD Value 12-1/4" x 5" 15K RH Electric Brake that offers safe and reliable stopping power. To quickly bring trailers to a stop, this replacement brake allows operators to remotely control the brakes on trailers by sending an immediate electronic signal. Fashioned with an easy-to-install and adjustable design to rapidly resolve problems within a trailer's parking mechanism. FleetPride is your First Click in Heavy Duty .