Mower housing diagram
Part #20551
Replaced by #492574MA
Lower half diagram
Part #24533Z
Replaced by #91925MA
Mower housing diagram
Part #2X39
Replaced by #2X39MA
Upper half diagram
Part #STD551025
Replaced by #STD551025
Lower half diagram
Part #37X5
Replaced by #37X51MA
Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part
Mower housing diagram
Part #21189
Replaced by #166X4MA
Lower half diagram
Part #24809
Replaced by #532122073
Upper half diagram
Part #17X102Z
Replaced by #703128
Mower housing diagram
Part #20062
Replaced by #20062MA