Parts for MDB8959AWB5 — Whirlpool Dishwasher
We found 14 parts confirmed to fit the Whirlpool Dishwasher MDB8959AWB5.
Same parts list as MDB8959AWB4 (Whirlpool Dishwasher). MDB8959AWB5 shares an identical confirmed parts list with MDB8959AWB4 (Whirlpool Dishwasher). That page is the canonical version of this parts list — use it if you want the primary reference, or stay here since the list below is exactly the same for MDB8959AWB5.
Compatibility table
| Part # | Part | Also fits | Reference price |
|---|---|---|---|
| WPW10251050 | Rack Adjuster | 30 models | $76.11 |
| WPW10251051 | Rack Adjuster | 30 models | $75.67 |
| W10258708 | VENT | 30 models | $69.91 |
| 8270018 | Dishwasher Wheel | 89 models | — |
| W10082825 | Dishwasher Dishrack | 115 models | — |
| W10199682 | Stop | 160 models | — |
| W10195750 | Dishwasher Drain Hose | 366 models | — |
| 8558995 | Dishwasher Drain Pump | 1,591 models | — |
| 8565925 | Dishwasher Dishrack Slide Rail Stop, Upper | 1,617 models | — |
| W10158291 | Dishwasher Door Balance Link | 2,030 models | — |
| 661663 | Fuse | 2,067 models | — |
| 661566 | Dishwasher Thermostat | 3,785 models | — |
| 4396277 | BARRIER | 4,961 models | $22.17–$27.36 |
| 8269144 | Dishwasher Drain Hose | 5,275 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.
Dishrack hardware (rollers, wheels and tines)
Symptom: A dish rack that binds, drags, or comes off its rail track when you pull it in or out, or a rack with a cracked, loose, or missing wheel or tine.
Check: Pull the rack fully out and check each wheel or roller for a crack or a missing axle pin, and check that tines aren't snapped off or pushed out of alignment along the row.
Parts in this group on MDB8959AWB5: WPW10251050 (Rack Adjuster), WPW10251051 (Rack Adjuster), W10082825 (Dishwasher Dishrack), 8565925 (Dishwasher Dishrack Slide Rail Stop, Upper).
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 MDB8959AWB5: W10258708 (VENT), 8270018 (Dishwasher Wheel), W10199682 (Stop), W10158291 (Dishwasher Door Balance Link), 661663 (Fuse), 4396277 (BARRIER).
Water inlet and drainage
Symptom: The dishwasher won't fill, or dishes come out with standing water still in the tub bottom after the cycle ends.
Check: Check the inlet valve's screen filter for sediment, and check the drain pump and drain hose for a clog or a jammed object -- a piece of broken glass or a bottle cap is a common culprit.
Parts in this group on MDB8959AWB5: W10195750 (Dishwasher Drain Hose), 8558995 (Dishwasher Drain Pump), 8269144 (Dishwasher Drain Hose).
Heat control (thermostats, fuses, heating element)
Symptom: Dishes don't dry at the end of the cycle, or a heated-dry setting doesn't seem to do anything.
Check: With the dishwasher unplugged, check continuity across the heating element or thermostat with a multimeter -- no continuity means it has failed.
Parts in this group on MDB8959AWB5: 661566 (Dishwasher Thermostat).
Before you buy
Match MDB8959AWB5 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.