C5NE6384B Years:1965&Up. Starter Ring Gear. 162 Teeth, Gasoline Engine Only. Fits Ford Tractors:2000, 230A, 231, 233, 234, 2600, 2610, 3000, 333, 334, 335, 340, 3400, 340A, 3500, 3600, 3610, 4000, 4100, 4110, 420, 4400, 445, 4500, 4600, 4610, 5000, 530A, 531, 532, 535, 540, 540A, 545, 550, 5500, 555, 5550.