Hydraulic Coupler Conversion Kit John Deere 2440 4520 8430 4030 4230 7520 2940 4630 3020 4320 4440 2020 1520 4240 8630 2030 4640 2040 4020 2520 4000 4040 2240 4430 2640 4620 2630 4840 1530 8440 1020 Fits John Deere Tractor(s) 1020, 1520, 1530, 2020, 2030, 2040, 2440, 2520, 2630, 2640, 2840, 2940, 3020, 4000, 4020, 4030, 4040, 4230, 4240, 4320, 4430, 4440, 4520, 4620, 4630, 4640, 4840, 5020, 6030, 7020, 7520, 8430, 8440, 8630, 8640 Fits John Deere Combine(s) 2240 Replaces John Deere OEM nos RE206778, RE12121 Universal hydraulic oil (2.5 gallon) use 120070 Universal hydraulic oil (5 gallon) use 124173