Hydraulic pump drive gear (this is the larger of the two gears).
Ford hydraulic pumps on Ford tractors:2000 (3 cylinder) 3000, 4000 (3 cylinder), 4000SU, 2600, 3600, 4600, 4600SU, 2310, 2610, 2810, 2910, 3610, 3910, 4610SU, 231, 335, 531, 340, 540, 3400, 3500, 445, 4500, 340, 340A, 340B, 445, 445A, 531, 542, 540, 540A
PIVOT WORKS LINKAGE BEARING KIT HONDA CRF250R 10-17 CRF450R 09-16