Drive system diagram
Part #STD581075
Replaced by #812000029
Body and chassis diagram
Part #20103
Replaced by #17000616
Drive system diagram
Part #90589
Replaced by #532122075
Blade housing diagram
Part #37X57
Replaced by #37X57MA
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Part #STD541431
The manufacturer no longer makes this part, and there's no substitute part
Part #20613
Replaced by #420613MA
Blade housing diagram
Part #24384
Replaced by #492574MA
Transmission diagram
Part #30X50
Replaced by #703312
Blade housing diagram
Part #55452
Replaced by #774090MA
Part #STD533107
The manufacturer no longer makes this part, and there's no substitute part