Whirlpool Dishwasher Filter/Impedance Bar Assembly (circulation pump filter assembly) W11643383, Replaces W11108699

Genuine Whirlpool dishwasher circulation-pump filter assembly. It screens debris from entering the circulation pump and wash-arm water path; Whirlpool’s catalog-style name is “Filter/Impedance Bar Assy, MFS.”

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✅ Cross Reference Information

Common Symptoms

• Poor cleaning or weak spray-arm performance
• Dishwasher taking unusually long to complete a cycle
• Poor or incomplete draining when debris restricts the pump/filter area
• Unusual operating noise when debris or damage affects the pump-filter area

Check Before Replacing

• Disconnect electrical power before inspecting the dishwasher.
• Remove the lower rack and visually inspect the accessible filter or sump area for food particles, labels, glass, or other debris.
• Rinse the removable filter area with warm water and use a soft brush; do not use abrasive tools or chemical drain cleaners.
• Check whether the filter assembly is damaged, shredded, obstructed, or seated incorrectly.
• After reassembly, run a short rinse cycle and observe whether water circulation and draining improve; improvement or lack of improvement does not by itself confirm that this part is defective.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM circulation-pump filter assembly
• Whirlpool catalog-style description: Filter/Impedance Bar Assy, MFS
• Designed to screen debris before it reaches the circulation pump and wash arms
• Manufacturer part number: W11643383
• Replaces archived Whirlpool part number W11108699

Installation Notes

• Disconnect electrical power before servicing; shut off the water supply if the installation procedure for the specific dishwasher requires access to water connections.
• The assembly is located in or near the sump in front of the circulation pump on applicable designs.
• Remove the existing assembly only after confirming the dishwasher-specific service information and model fit.
• Inspect and clean the surrounding sump area before installing the replacement.
• Ensure the replacement is fully seated and secured according to the appliance’s model-specific service instructions; an improperly seated filter can reduce water flow or permit debris entry.
• Use work gloves when handling the filter or inspecting the sump because sharp debris may be present.

Verified Compatible Models

KDFM404KBS0, KDFM404KBS1, KDFM404KBS2, KDFM404KBS3, KDFM404KPS0, KDFM404KPS1, KDFM404KPS2, KDFM404KPS3, KDPM604KBS0, KDPM604KBS2, KDPM604KBS3, KDPM604KPS0, KDPM604KPS2, KDPM704KPS0, KDPM704KPS2, KDPM804KBS0, KDPM804KBS1, KDPM804KBS2, KDPM804KBS3, KDPM804KPS0, KDPM804KPS1, KDPM804KPS2, KDPM804KPS3, KDTM404KBS0, KDTM404KBS2, KDTM404KPS0, KDTM404KPS1, KDTM404KPS2, KDTM404KPS3, KDTM405PPS0, KDTM604KBS0, KDTM604KBS1, KDTM604KBS2, KDTM604KBS3, KDTM604KPS0, KDTM604KPS1, KDTM604KPS2, KDTM604KPS3, KDTM704KPS0, KDTM704KPS1, KDTM704KPS2, KDTM704KPS3, KDTM704LPA1, KDTM804KBS0, KDTM804KBS1, KDTM804KBS3, KDTM804KPS0, KDTM804KPS1, KDTM804KPS2, KDTM804KPS3

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