. Watch for these tractors: John Deere 830, John Deere 4320, John Deere 4620, John Deere 4630, John Deere 4840, John Deere 4255, John Deere 4960, John Deere 9220, John Deere 8430, John Deere 9410R, John Deere 8320RT, John Deere 8400R, John Deere 9420R, John Deere 9520RX Narrow Track and John Deere John Deere 9520RX. Watch for corn planters from 12 rows to 54 rows.
