Parts list: № Number Qty Name Options 1 T35983 2 O-RING (SUB Z29304) 1 Z29304 2 O-Ring 2 H63283 4 O-Ring 3 H89335 2 O-RING 4 H81608 2 O-Ring 5 AH90687 1 SEAL KIT Next page: 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) ST518265 DIAL-A-MATIC HEADER HEIGHT CONTROL ELECTRICAL HARNESS AND CONTROL LINKAGE (502551 - ) ST518266 Amplifier (Dial-A-Matic Header Height Control) (502551 - ) 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)