John Deere 4000 Twenty Series with Cab (4320, 4520, 4720) Compact Utility Tractors Technical Manual (TM2370) List price: $35.00 Leave this field blank TM2370 - John Deere 4000 Twenty Series with Cab (4320, 4520, 4720) Compact Utility Tractors Technical Manual Read more about John Deere 4000 Twenty Series with Cab (4320, 4520, 4720) Compact Utility Tractors Technical Manual (TM2370)