AR50781 AR39811 AR46846 Fuel Injector Fit for John Deere 4040 3020 4230Part Number: AR39811, AR46846, SE501163, AR50783, AR44977, AR49226, SE501161, AR69290, SE501168, SE501169 Stamped ID: 17705, 18270, 18421, 18660, 18646, 18767, 18768, 20364, 20494, 20518 Application: Fit for John Deere Tractor(s): 3020, 4000 (s n 335845 earlier), 4020 (s n 335845 earlier), 4040, 4230 (s n 335845 later) Fit for John Deere Combine(s): 6600, 7700 Fit for John Deere Construction & Industrial(s): 500 (s n 280000 earlier), 510, 600