Parts list: № Number Qty Name Options 1 R542221 4 Screw 2 RE593381 1 Electronic Control Unit Next page: ST959420 Multi Functional Controller, Roof ST953645 Multi-Functional Controller, Cab Control ST959416 Multi-Functional Controller, Chassis ST953651 Front Controller, W/ ILS™ ST1043672 Steering Controller, AutoTrac™ W/ Backup Pump ( - 200000) ST1027570 Steering Controller, ACS™ (200001 - ) PICT-OSO.1 OSO Control Units