Parts for MDC4650AWB — Whirlpool Dishwasher
We found 12 parts confirmed to fit the Whirlpool Dishwasher MDC4650AWB.
Compatibility table
| Part # | Part | Also fits | Reference price |
|---|---|---|---|
| 903297 | Twin Wheel Caster | 12 models | — |
| WP99001868 | Coupler and Hose Assembly | 15 models | $141.51 |
| WP903297 | Caster Wheel | 30 models | $11.77 |
| WP4312464 | SCREW | 47 models | $3.90 |
| WP324004109 | Refrigerator Screw | 71 models | $3.90–$7.47 |
| 910955 | Screw For To | 80 models | — |
| 99002749 | Screw | 146 models | — |
| 903233 | Foam Seal | 153 models | — |
| 99002753 | Dishwasher Top Wash Arm Retainer | 164 models | — |
| 99002614 | Dishwasher Rinse-Aid Dispenser Cap | 172 models | — |
| 99002852 | Injection Hose | 657 models | — |
| 99002971 | Heater Element | 740 models | — |
Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.
Common failure areas on this model
The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.
General hardware and mounting parts
Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.
Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.
Parts in this group on MDC4650AWB: 903297 (Twin Wheel Caster), WP99001868 (Coupler and Hose Assembly), WP903297 (Caster Wheel), 903233 (Foam Seal), 99002852 (Injection Hose), 99002971 (Heater Element).
Storage, trim and cosmetic hardware
Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.
Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.
Parts in this group on MDC4650AWB: WP4312464 (SCREW), WP324004109 (Refrigerator Screw), 910955 (Screw For To), 99002749 (Screw), 99002614 (Dishwasher Rinse-Aid Dispenser Cap).
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.
Parts in this group on MDC4650AWB: 99002753 (Dishwasher Top Wash Arm Retainer).
Before you buy
Match MDC4650AWB exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.
How to confirm this is your model
On most dishwashers, the model and serial plate sits on the edge of the door or the tub rim. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.
Neighbouring Whirlpool Dishwasher models
These model numbers sort next to this one in the catalog and are usually the same product family.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.