Hydraulic pump drive coupler kit for John Deere tractors as listed below. The kit includes 2 aftermarket coupler halves that replace John Deere part number R34362, 4 rubber bushings that replace John Deere part number R45822, 2 bolts and 2 nuts. Many times this is all the parts that are needed when repairing the worn hydraulic pump coupler drive. These parts will fit the 2840, 3020, 4020, 4030, 4040, 4230, 4240, 4320, 4430, 4440, 4520, 4620, 4630, 4640, 4840, 5010, 5020 and many more tractors. Also fits many construction models. Please confirm your application using the part numbers above.