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: ST517421 Amplifier, Dial-A-Matic Header Height Control (507351 - ) ST811132 Kit, Main Valve Block Solenoid, Automatic Header Height Control and Dial-A-Matic Header Height Control ST517412 Main Valve Block Solenoid, Automatic Header Height Control and Dial-A-Matic Header Height Control ST517419 AUTOMATIC HEADER HEIGHT CONTROL ELECTRICAL HARNESS ( - 507350) ST517415 Hydraulic Oil Line, Drop Rate Valve and Full Flow Plug, Automatic Header Height Control and Dial-A-Matic Header Height Control ST517425 Dial-A-Matic Header Height Control Conversion, Combines Already Equipped W/ Automatic Header Height Control (358901 - 507350) ST517420 DIAL-A-MATIC HEADER HEIGHT CONTROL ELECTRICAL HARNESS AND CONTROL LINKAGE (507351 - ) ST517418 Oil Cooler Lines and Hose, Automatic Header Height Control and Dial-A-Matic Header Height Control ST517410 Control Valve, Automatic Header Height Control and Dial-A-Matic Header Height Control