Stanadyne Solenoid Arm, P/N 16278. Fits John Deere AR90341 Pump Solenoid. NSN 2910-00-832-0122.Steel, two piece riveted construction, U-shape hook on one end, other end slotted, 1.312 in. O/a W, 0.318 in. O/a thk, 1.800 in. O/a lg. Get it here and save some money. 15338 WRD2