This part is commonly Used on models:
78498 52in Twin Soft Bagger, 200 Series Z Master
78507 44in, 48in and 52in Twin Soft Bagger, Z100 and Z400 Z Master
78431 E-Z Vac HD Twin Bagger, Zero Turn Radius Riding Mower
78463 Bagger Kit, Z Master 2000 or 4000 Series Riding Mower
78562 48in and 52in E-Z Vac Twin Bagging System, Z Master G3 Mower
78439 Bagger Kit, Z Master 2000 or 4000 Series Riding Mower