... development,products passed ISO9001 Quality System Certification. Cummins Hand Control Valve 1.Model:3517N-010 2.Applicable models:EQ1108,EQ1141 ... The hand control valve is used to control the towing vehicle and trailers spring actuators for the emergency or paring brake.it ... ,Cummins platen assy,Cummins clutch master cylinder, Cummins hand control valve,Cummins water pump, Cummins clutch booster, as so ...