Drive system diagram
Part #STD581075
Replaced by #812000029
Pictorial wiring diagram diagram
Part #56032
The manufacturer no longer makes this part, and there's no substitute part
Mower housing bottom half diagram
Part #37X57
Replaced by #37X57MA
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Pictorial wiring diagram diagram
Part #24285
Replaced by #7701100MA
Pictorial wiring diagram diagram
Part #91275
Replaced by #691959
Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part
Mower housing bottom half diagram
Part #55962
Replaced by #455962MA
Part #STD541431
The manufacturer no longer makes this part, and there's no substitute part
Part #91178
Replaced by #420613MA
Steering system diagram
Part #55386
Replaced by #55700MA