Product Details: Ensure your semi is Ready for the Road Ahead™ with safe and reliable stopping power, with the HD Value 12" x 2" 7K LH Electric Brake. By utilizing a specialized design, this replacement brake makes it possible for operators to remotely control the brakes on trailers by sending an immediate electronic signal. Built 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®.