Whirlpool Dishwasher Accumulator Assembly / Pump Filter W11205078, Replaces W10591545

Genuine Whirlpool dishwasher accumulator assembly, also identified as a pump filter. It is located above the sump and removes or collects food particles from wash water to support proper filtration and circulation.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Food residue or soil remains on dishes after a cycle.
• Reduced cleaning performance or poor washing of the upper rack.
• Restricted water flow or clogging associated with debris buildup in the accumulator.
• Visible debris buildup or damage to the accumulator filter mesh.

Check Before Replacing

• Disconnect electrical power before accessing the dishwasher’s internal filter or sump area.
• Visually inspect the accumulator/filter area for food debris, mineral buildup, clogging, or torn mesh.
• Check that the accumulator and associated cover or wash-arm connection are seated and latched as designed for the appliance model.
• Confirm the dishwasher model number before ordering; these symptoms can also be caused by other dishwasher components.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM dishwasher accumulator assembly.
• Also identified as a pump filter, pump accumulator filter assembly, or accumulator filter.
• Located above the dishwasher sump.
• Designed to remove food particles from wash water.
• Replaces Whirlpool part W10591545.

Installation Notes

• Disconnect electrical power before beginning service; shut off the dishwasher water supply when required by the appliance service procedure.
• Use the model-specific parts diagram or service instructions to identify the accumulator’s correct orientation and latching points.
• Inspect the replacement part and surrounding filter area for debris or damage before reassembly.
• After installation, verify that the accumulator and related internal components are seated securely before restoring power and testing the dishwasher.

Verified Compatible Models

MDB4949SDE0, MDB4949SDH2, MDB5969SDM2, MDB7959SHK0, MDB7959SHZ0, MDB7979SHZ1, MDB8959SFH4, MDB8959SFZ3, MDB8969SDE3, MDB8969SDH2, MDB8969SDH3, MDB8969SDM1, MDB8989SHZ0

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