What mechanism applies the brakes in the towed vehicle?
BrakeSafe offers four types of brake pedal actuators. The BX88161 actuator is an air cylinder that pushes the pedal. The BX88143 actuator is an air cylinder that pulls the brake pedal. The BX88139 and BX88140 actuators have hydraulic cylinders, with the BX88139 pushing the brake pedal and the BX88140 pulling the brake pedal.