The Case IH 84515778 is a genuine OEM wire harness designed for various Case IH agricultural machinery. This essential electrical component ensures reliable connectivity within the tractor's systems. It is compatible with specific Magnum, Steiger, and Quadtrac models including MAGNUM 235, MAGNUM 260, MAGNUM 290, MAGNUM 315, MAGNUM 340, MAGNUM 370, STEIGER 350, STEIGER 400, STEIGER 450, STEIGER 500, STEIGER 550, STEIGER 600, QUADTRAC 450, QUADTRAC 500, QUADTRAC 550, and QUADTRAC 600. This part number has been superseded by Case IH part number 87405230, which is the current equivalent.