The John Deere RE203900 is an authentic OEM disk with an inner spline, designed for critical power transmission applications in various John Deere agricultural and construction equipment. This precision-engineered component ensures reliable performance and proper fitment, maintaining the operational integrity of your machinery. It is commonly found in drive systems, clutches, or brakes, providing essential engagement and disengagement functionality. Manufactured to John Deere's rigorous standards, this disk offers durability and compatibility with a wide range of tractor and machinery models, including the 6000, 7000, 8000, and 9000 series.