This part is commonly Used on models:
30620 Proline 220
30798 Groundsmaster 220
73421 416-H Garden Tractor
73501 520-H Garden Tractor
73520 520-H Garden Tractor
74140 724-Z Tractor
9800 HydroJect 3000 Aerator
9801 HydroJect 3000 Aerator
73422 416-8 Garden Tractor
73441 416-8 Garden Tractor
73423 416-H Garden Tractor
73502 520-H Garden Tractor
73521 520-H Garden Tractor
9850 HydroJect 4000 Aerator
