Blade housing diagram
Part #20551
Replaced by #492574MA
Blade housing diagram
Part #20619Z
Replaced by #20619MA
Lower half diagram
Part #STD541431
The manufacturer no longer makes this part, and there's no substitute part
Top half diagram
Part #STD551025
Replaced by #STD551025
Part #20613
Replaced by #420613MA
Part #15X88Z
The manufacturer no longer makes this part, and there's no substitute part
Lower half diagram
Part #10851Z
Replaced by #10851ZMA
Lower half diagram
Part #20864
Replaced by #11X16MA
Blade housing diagram
Part #28X23
Replaced by #703948
Lower half diagram
Part #20715
Replaced by #37X51MA