Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part
Part #20613
Replaced by #420613MA
Top half diagram
Part #17X102Z
Replaced by #703128
Lower half diagram
Part #10851Z
Replaced by #10851ZMA
Mower housing diagram
Part #20551
Replaced by #492574MA
Lower half diagram
Part #20864
Replaced by #11X16MA
Part #26X214
Replaced by #26X214MA
Top half diagram
Part #26X215
Replaced by #26X235MA
Mower housing diagram
Part #21189
Replaced by #166X4MA
Top half diagram
Part #26X216
Replaced by #26X216MA