Top half diagram
Part #20103
Replaced by #17000616
Part #STD541431
The manufacturer no longer makes this part, and there's no substitute part
Part #20613
Replaced by #420613MA
Lower half diagram
Part #55000
Replaced by #794299
Part #STD533107
Replaced by #STD533107
Top half diagram
Part #STD551131
The manufacturer no longer makes this part, and there's no substitute part
Mower housing diagram
Part #24384
Replaced by #492574MA
Top half diagram
Part #STD523107
The manufacturer no longer makes this part, and there's no substitute part
Part #STD541437
The manufacturer no longer makes this part, and there's no substitute part
Mower housing diagram
Part #166X4
Replaced by #166X4MA