Parts for MDBH945AWS3 — Whirlpool Dishwasher

We found 8 parts confirmed to fit the Whirlpool Dishwasher MDBH945AWS3.

Compatibility table

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.

Door, lid switches and latches

Symptom: The dishwasher won't start, or stops mid-cycle, unless the door is fully latched shut.

Check: Listen for an audible click when the door latches. No click, or a visibly worn or broken latch or strike, points to this part.

Parts in this group on MDBH945AWS3: WP99002837 (Door Latch Handle - white).

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 MDBH945AWS3: W10273414 (Heater), 99002659 (Dishwasher Pump Impeller), 99002852 (Injection Hose).

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 MDBH945AWS3: W10166788 (Dishwasher Filter Support), 99002753 (Dishwasher Top Wash Arm Retainer).

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 MDBH945AWS3: 99002975 (Dishwasher Water Inlet Valve), 99002652 (Dishwasher Drain Hose).

Before you buy

Match MDBH945AWS3 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.

• MDBH945AWW3 — 8 parts
• MDBH949AWB0 — 13 parts
• MDBH949AWB1 — 13 parts
• MDBH949AWB2 — 14 parts
• MDBH949AWB3 — 14 parts
• MDBH945AWS — 10 parts
• MDBH945AWQ3 — 8 parts
• MDBH945AWB3 — 8 parts
• MDBH945AWB — 10 parts
• MDBH750AWW — 9 parts

Still not sure?

Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.