This part is commonly Used on models:
74176 Z147 Z Master, With 44"" SFS Side Discharge Mower
74178 Z150 Z Master, With 52"" SFS Side Discharge Mower
74179 Z149 Z Master, With 52"" SFS Side Discharge Mower
74197 Z153 Z Master, With 52"" SFS Side Discharge Mower
74198 Z153 Z Master, With 52"" SFS Side Discharge Mower
74176TE Z147 Z Master, With 112cm SFS Side Discharge Mower
LHP4417KA Lazer Z HP
LHP4420KC Lazer Z HP
LHP4820KC Lazer Z HP
LHP4821KA Lazer Z HP
LHP5220KC Lazer Z HP
LHP5223KA Lazer Z HP
LHP5223KC Lazer Z HP
