Parts list: № Number Qty Name Options 1 H81608 2 O-Ring 2 [] 1 3 [] 1 4 [] 1 5 [] 1 6 R26375 1 O-Ring 7 AH90688 1 TUNE-UP KIT Next page: ST518258 Main Valve Block Solenoid (Automatic Header Height Control and Dial-A-Matic Header Height Control) ST518260 Kit, Main Valve Block Solenoid Automatic Header Height Control And Dial-A-Matic Header Height Control) ST518261 Hydraulic Oil Line, Drop Rate Valve, and Full Flow Plug (Automatic Header Height Control and Dial-A-Matic Header Height Control) ST518263 Kit, Drop Rate Valve (Automatic Header Height Control and Dial-A-Matic Header Height Control) ST518264 Automatic Header Height Control Electrical Harness and Control Linkage ( - 502550) ST518256 Control Valve (Automatic Header Height Control and Dial-A-Matic Header Height Control)