This genuine John Deere R91708 Bushing is designed for the balancer shaft, specifically the O/S (outer/side) position. It ensures smooth operation and proper alignment within the engine or related assemblies. This high-quality OEM part is crucial for maintaining the performance and longevity of your John Deere equipment. It fits a wide range of John Deere tractors and industrial machines including models 4040, 4240, 4440, 4640, 4840, 8430, 8630, 8440, 8640, 8450, 8650, 8850, 7020, 7520, 860, 860A, 860B, 862, 862B, and 862BH.