Blade housing diagram
Part #20551
Replaced by #492574MA
Blade housing diagram
Part #20619Z
Replaced by #20619MA
Part #15X85
Replaced by #703333
Lower half diagram
Part #20715
Replaced by #37X51MA
Blade housing diagram
Part #28X23
Replaced by #703948
Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part
Part #15X79
Replaced by #703409
Part #15X88Z
The manufacturer no longer makes this part, and there's no substitute part
Part #20613
Replaced by #420613MA
Lower half diagram
Part #133X3
Replaced by #90594MA