This part is commonly Used on models:
74312 Z Master 8000 Series Riding Mower, with 48in Direct-Collect Cutting Unit
74314 Z Master 48in 8000 Series Riding Mower
74318 Z Master 42in 8000 Series Riding Mower
74319 Z Master 48in 8000 Series Riding Mower
NVS730AKC48000 Navigator
NVS749AKC48000 Navigator
NVS730EKC48000 Navigator
NV730EKC42 Navigator
NV730EKC48 Navigator
NV730EKC Navigator