Mower housing diagram
Part #20551
Replaced by #492574MA
Mower housing diagram
Part #20619Z
Replaced by #20619MA
Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part
Mower housing diagram
Part #17X46Z
Replaced by #17X46MA
Mower housing diagram
Part #21189
Replaced by #166X4MA
Part #15X79
Replaced by #703409
Part #15X88Z
The manufacturer no longer makes this part, and there's no substitute part
Lower half diagram
Part #133X3
Replaced by #90594MA
Lower half diagram
Part #10851Z
Replaced by #10851ZMA
Lower half diagram
Part #15X85
Replaced by #703333