Shaft, Load Control (Ref. 1). PART NO: A-R71375. Dim A (1)24.250" Long Dim B (2)1.186" Dia. . MODELS: John Deere TRACTOR: 4040S John Deere TRACTOR: 4050 John Deere TRACTOR: 4055 John Deere TRACTOR: 4240S John Deere TRACTOR: 4250 John Deere TRACTOR: 4255 John Deere TRACTOR: 4350 John Deere TRACTOR: 4450 John Deere TRACTOR: 4455 (North American Edition).