Whirlpool Corporation Dishwasher Drain Pump W11497943, Replaces W11235873, W11412663, W11491436

Genuine OEM drain pump used to remove water from the dishwasher tub during the drain phase. The part is sold for Whirlpool and Maytag dishwashers.

Is This the Right Part?

Common Symptoms

• Incomplete or slow draining
• Drain-related error indication
• Pump humming without moving water
• Unusual noise during the drain phase

Check Before Replacing

• Disconnect electrical power before servicing.
• Inspect and rinse the dishwasher filter for debris that could restrict drainage.
• Check the drain hose for kinks, blockage, or improper routing.
• If equipped, inspect the air gap or disposer connection for blockage.
• Observe whether the pump operates during a drain phase; do not assume the pump is defective until external restrictions are excluded.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM dishwasher drain-pump assembly.
• Uses an impeller-driven pump to force water through the drain hose.
• Designed for Whirlpool-family dishwasher applications, including select Maytag and Whirlpool models.
• Current OEM number W11497943 supersedes the archived numbers W11235873, W11412663, and W11491436.

Installation Notes

• Disconnect electrical power and shut off the dishwasher water supply before installation.
• Wear work gloves and protect the area from residual water.
• Access, connector arrangement, hose connections, and mounting details vary by dishwasher model; follow the model-specific service procedure.
• Reconnect the pump wiring and hoses securely, then run a short cycle and check for leaks and complete drainage.

Verified Compatible Models

MDB4949SKB0, MDB4949SKB1, MDB4949SKB2, MDB4949SKB3, MDB4949SKB4, MDB4949SKW0, MDB4949SKW1, MDB4949SKW2, MDB4949SKW3, MDB4949SKZ1, MDB4949SKZ2, MDB4949SKZ3, MDB4949SKZ4, MDB7959SKZ0, MDB7959SKZ1

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