Parts list: № Number Qty Name Options 1 38H5001 16 Adapter Fitting 2 T77814 16 O-Ring 7.645 X 1.778 mm (0.301" X 0.070") 3 51M7040 26 O-Ring 9.300 X 2.200 mm 4 RE46686 10 Fitting Plug 5 WZW16668 2 Control Valve Next page: ST788802 Shims, Hydraulic Tread Adjust ST883764 Hydrostatic Pump ST885436 Hydraulic Cylinder, Boom Tilt ST884568 Fittings, Hydrostatic Pump Valve ST883796 Tread Adjusting Valve ST884519 Shaft / Housing / Cylinder, Hydrostatic Pump ST883865 Combination Valve ST951368 Control Valve, John Deere TerrainCommandPRO™ ST950408 Control Valve, Hoses and Bracket, John Deere TerrainCommandPRO™ ST948239 Control Valve and Hoses, John Deere TerrainCommand™ BoomTrac™