Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part
Part #15X79
Replaced by #703409
Part #20613
Replaced by #420613MA
Part #15X88Z
The manufacturer no longer makes this part, and there's no substitute part
Upper half diagram
Part #17X102Z
Replaced by #703128
Part #15X85
Replaced by #703333
Lower half diagram
Part #20864
Replaced by #11X16MA
Mower housing diagram
Part #15X84
Replaced by #703893
Mower housing diagram
Part #28X23
Replaced by #703948
Part #10851Z
Replaced by #10851ZMA