Dishwasher drain pump. The drain pump forces water through the drain hose. If the drain pump is clogged, damaged, or defective, the dishwasher will not drain properly.
Dishwasher circulation pump and motor assembly. The circulation pump uses a motor and impeller to force water through the spray arms. If the circulation pump is defective, the dishwasher may be noisy and/or may not clean dishes properly.
Check ball, pump
Pump sump assembly