Parts list: № Number Qty Name Options 1 R542221 4 Screw 2 RE593381 1 Electronic Control Unit Next page: ST1042156 Steering Controller, ACS™ ST953645 Multi-Functional Controller, Cab Control ST962669 Mounting hardware, Front Controller, Hitch/ Midstack, TLS™ ST959420 Multi Functional Controller, Roof ST962446 Multi Functional Controller, IVT™ ST959427 Multi Functional Controller, Front Control, Steering ST1042157 Steering Controller, AutoTrac™ W/ Backup Pump