Control box/ 283700 and 283800 only diagram
Part #U18-881
Replaced by #43-17075-04
Control box / 283900 diagram
Part #P17-57
Replacement parts diagram
Part #P11-21
Replacement parts diagram
Part #P8-20
Replacement parts diagram
Part #U37-17GP
Replacement parts diagram
Part #P97-23P
Replacement parts diagram
Part #E238-2
Replacement parts diagram
Part #J43-13C
Control box / 283600 only diagram
Part #U18-811
Control box / 283900 diagram
Part #U18-840
The manufacturer no longer makes this part, and there's no substitute part