O-Ring (Hydraulic Pump Shaft)
CTP57855 Replacement Part to Fit:  David Brown Fits: 1200, 1210, 1212, 1390, 1394, 1410, 1412, 1490, 1494, 1590, 1594, 1690, 1694 Replaces: K262773. (1-7/16" x 1/4")  Price:  $1.39  Buyers Club Price:  $1.25