Swisher's 12V Spreader Vibrator Kit gives your hopper the power it needs to keep material flowing smoothly and consistently. The unit mounts directly to the side of any Swisher poly hopper and delivers 80 lbs of force to shake the hopper walls, helping break up clogs and improving the flow of stubborn materials for a smooth, even spread. The complete kit includes an 80lbforce 12V vibrator, a 12 ft 12V wire harness with a fused power plug, an 8 ft wire harness extension, 21 ft of 3/8 in. ID split wire loom tubing conduit, a powdercoated mounting plate, and all required mounting hardware.