The John Deere AE39974 Arm is a genuine OEM replacement part designed for various John Deere 9000 and S-Series Combines. This essential component ensures proper functionality and durability within the combine's operational system. Manufactured to John Deere's rigorous standards, the AE39974 arm provides a precise fit and reliable performance, crucial for maintaining machine efficiency and longevity. It is compatible with a wide range of combine models including 9400, 9500, 9600, 9410, 9510, 9610, 9550, 9650, 9750, 9860, 9660, 9760, 9860, 9670, 9770, 9870, S550, S660, S670, S680, S690, S760, S770, S780, S785, and S790.