Lower half diagram
Part #400162
Replaced by #65139
Part #15X79
Replaced by #703409
Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part
Part #20613
Replaced by #420613MA
Part #15X88Z
The manufacturer no longer makes this part, and there's no substitute part
Top half diagram
Part #17X102
Replaced by #703128
Part #15X85
Replaced by #703333
Lower half diagram
Part #20864
Replaced by #11X16MA
Top half diagram
Part #STD551025
The manufacturer no longer makes this part, and there's no substitute part
Mower housing diagram
Part #20551
Replaced by #492574MA