This hydraulic cylinder opens the hopper slide on a fertilizer spreader. It converts hydraulic pressure into linear motion to control the flow of material from the hopper to the distribution disc. A cylinder that leaks or fails to extend fully will cause inconsistent application rates. This part is manufactured to the original geometry so the mounting holes align with the brackets on the spreader frame and the clevis pins seat without modification. When replacing, ensure the hydraulic lines are bled of air and the cylinder is connected to the correct port direction.