Part #20613
Replaced by #420613MA
Mower deck diagram
Part #28X23
Replaced by #703948
Mower deck diagram
Part #24524
Replaced by #24524E701MA
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Mower deck diagram
Part #166X4
Replaced by #166X4MA
Chassis and enclosures diagram
Part #STD551025
The manufacturer no longer makes this part, and there's no substitute part
Drive assembly diagram
Part #55000
Replaced by #794299
Drive assembly diagram
Part #24396
Replaced by #532122073
Differential diagram
Part #780124
Replaced by #780124
Mower deck diagram
Part #37X12
Replaced by #37X12MA
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Differential diagram
Part #778067
Replaced by #778132