Lower half diagram
Part #400162
The manufacturer no longer makes this part, and there's no substitute part
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 #15X85
Replaced by #703333
Single-speed transmission diagram
Part #400053
The manufacturer no longer makes this part, and there's no substitute part
Mower housing diagram
Part #21189
Replaced by #166X4MA
Single-speed transmission diagram
Part #407302
Replaced by #583775101
Top half diagram
Part #STD541531
The manufacturer no longer makes this part, and there's no substitute part