This spring tine with an attached coulter is a soil-engaging component for a tillage unit. It mounts to the tine bar and carries the coulter that opens a furrow for seed or fertilizer placement. The SU-type tine flexes to deflect around obstacles and returns to its working depth. A worn coulter or a tine that has lost its spring tension will cause inconsistent furrow depth and uneven seed placement. The manufacturer machines the mounting hole and the coulter interface to match the original assembly geometry, so the tine aligns correctly on the bar without shimming.