Dishwasher Sump WD18X21680
Brand: GE · Appliance: Dishwasher · Fits: 12 models · Reference price: $85.27
WD18X21680 is a GE replacement part (dishwasher sump) for dishwashers. Our fitment data lists 12 models that use it.
When to replace this part
Filtration and spray system
Symptom: Dishes come out with food residue, spots, or a cloudy film, or you notice leftover debris in the tub bottom after a cycle.
Check: Remove and rinse the filter assembly under the tub, and check that the spray arm spins freely and its jets aren't clogged -- these are the first things to check before assuming a pump has failed.
Models that use this part
| Model | Brand | Appliance | Parts on file |
|---|---|---|---|
| GDT635HSJ2SS | GE | Dishwasher | 140 |
| GDT635HGJ2WW | GE | Dishwasher | 131 |
| GDT635HMJ4ES | GE | Dishwasher | 64 |
| GDF620HGJ2WW | GE | Dishwasher | 51 |
| GDF620HGJ0WW | GE | Dishwasher | 36 |
| GDF620HGJ6WW | GE | Dishwasher | 36 |
| GDF630PFM1DS | GE | Dishwasher | 27 |
| GDF620HGJ5WW | GE | Dishwasher | 25 |
| GDT635HSJ5SS | GE | Dishwasher | 25 |
| GDF630PGM0WW | GE | Dishwasher | 22 |
| GDT605PBM0TS | GE | Dishwasher | 22 |
| GDF530PGM0CC | GE | Dishwasher | 21 |
Part numbers it replaces
The manufacturer lists WD18X21680 as the replacement for these earlier part numbers. Substitute parts can look different from the original but serve the same function.
Other parts for model GDT635HSJ2SS
If you are repairing that appliance, these are the most model-specific parts on file for the same model.
Reference price and where to compare
The reference price on file for this part is $85.27. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.
Compare WD18X21680 listings on Amazon