John Deere 4000 Twenty Series with Cab (4320, 4520, 4720) Compact Utility Tractors Technical Manual (TM2370) Price listed in US Dollar: $29.99 John Deere 4000 Twenty Series with Cab (4320, 4520, 4720) Compact Utility Tractors Technical Manual (TM2370) Read more about John Deere 4000 Twenty Series with Cab (4320, 4520, 4720) Compact Utility Tractors Technical Manual (TM2370)