Part #20613
Replaced by #420613MA
Blade housing diagram
Part #20551
Replaced by #492574MA
Part #30X20
Replaced by #703312
Drive assembly diagram
Part #1X20
Replaced by #1X20MA
Drive assembly diagram
Part #20692
The manufacturer no longer makes this part, and there's no substitute part
Drive assembly diagram
Part #2X53
Replaced by #703159
Three-speed transmission diagram
Part #400053
Replaced by #2276J
Part #1X45
Replaced by #703822
Drive assembly diagram
Part #20864
Replaced by #11X16MA
Top half diagram
Part #17X104
Replaced by #710083MA