Whirlpool Dishwasher Pump and Motor Assembly WPW10482482, Replaces W10300748, W10482482, W10500286

Circulation pump and motor assembly that moves water from the dishwasher sump through the spray arms. The assembly may include the sump, circulation pump, and diverter motor.

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✅ Cross Reference Information

Common Symptoms

• Dishes remain dirty even though the dishwasher fills and drains normally.
• Spray arms do not rotate or have visibly weak water pressure.
• The dishwasher fills but the circulation-pump sound is absent or abnormal.
• Detergent remains partly undissolved because wash water is not being circulated effectively.
• Water leakage may occur from a damaged sump or pump-assembly seal.

Check Before Replacing

• After the dishwasher fills, briefly open the door and compare the spray-arm position with its starting position; unchanged arms can indicate a circulation or spray-path problem, but do not by themselves prove pump failure.
• With power disconnected, inspect and clean the coarse filter, sump area, and spray-arm nozzles for food debris or mineral buildup before condemning the pump assembly.
• Confirm that the spray arms rotate freely by hand with the dishwasher off and that dishes are not blocking them.
• Listen during the wash phase for the circulation pump to start after filling; silence, humming, or unusually weak wash sound warrants further model-specific testing.
• Inspect for visible water below the dishwasher or around the sump area, but do not operate the appliance with exposed electrical parts or an active leak.
• Do not perform live-voltage or internal electrical measurements unless qualified to do so and following the exact model service documentation.

Pro Tip

Part Details

Key Features

• Whirlpool OEM dishwasher pump-and-motor assembly.
• Circulation-pump function for pressurizing wash water to the spray arms.
• Assembly configuration can include the sump, circulation pump, and diverter motor.
• The archived replacement is Whirlpool WPW10605058.
• The archived prior numbers include W10300748, W10482482, and W10500286.

Installation Notes

• Disconnect electrical power and shut off the dishwasher water supply before servicing.
• Use the model-specific Whirlpool installation or service documentation because sump and pump access varies by dishwasher model.
• Inspect the replacement assembly and its seals before installation; do not reuse damaged sealing components.
• After installation, restore panels and connections before reconnecting power, then run the applicable model service or diagnostic cycle to verify wash circulation and check for leaks.
• If the assembly is being replaced because of poor cleaning, confirm that filters, sump passages, and spray arms are clear before installation.

Verified Compatible Models

7WDT950SAYM2, 66513042K110, 66513049K111, 66513262K111, 66513262K112, 66513263K110, 66513263K111, 66513263K112, 66513283K112, 66513369K111, 66515049K112, WDF730PAYM3, WDF735PABB0, WDT910SAYH2, WDT910SAYM1

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.