Parts list: № Number Qty Name Options 1 H89336 1 POPPET 2 H89338 1 SPRING 3 [] 1 4 A4365R 1 O-Ring 5 [] 1 6 R26375 1 O-Ring 7 [] 1 8 H89949 1 NUT 9 AH90686 1 Fitting Kit SERVICE REPAIR Next page: ST518264 Automatic Header Height Control Electrical Harness and Control Linkage ( - 502550) ST518265 DIAL-A-MATIC HEADER HEIGHT CONTROL ELECTRICAL HARNESS AND CONTROL LINKAGE (502551 - ) ST518266 Amplifier (Dial-A-Matic Header Height Control) (502551 - ) ST518267 AUTOMATIC HEADER HEIGHT CONTROL SWITCH ( - 502550) ST518269 DIAL-A-MATIC HEADER HEIGHT CONTROL SWITCH (502551 - ) ST518261 Hydraulic Oil Line, Drop Rate Valve, and Full Flow Plug (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) ST518258 Main Valve Block Solenoid (Automatic Header Height Control and Dial-A-Matic Header Height Control) ST518257 Kit, Check Block (Automatic Header Height Control and Dial-A-Matic Header Height Control) ST518256 Control Valve (Automatic Header Height Control and Dial-A-Matic Header Height Control)