This left-side stanchion is the vertical structural post that mounts a disc blade to the frame of a disc harrow. It positions the disc at the correct angle and depth for soil penetration, transferring the downward force from the frame to the disc hub. A bent or cracked stanchion causes the disc to run at an incorrect angle, leading to uneven tillage depth and increased side-draft on the tractor. As an original Mandam component, the stanchion is formed to the same mounting-hole spacing and offset angle as the assembly it replaces, so no shimming or re-drilling is required during installation.