Introduction
This manual provides essential information for the installation and maintenance of the Whirlpool W11416363 OEM Dishwasher Pump and Motor Assembly. This genuine replacement part is designed to ensure the optimal performance and longevity of your compatible Whirlpool or other major brand dishwasher.
Important Safety Information
WARNING:
- Always unplug the dishwasher or shut off the house circuit breaker before attempting any installation or repair.
- Turn off the water supply under the sink to the dishwasher before beginning work.
- Replacing this part requires basic hand tools, some disassembly of the appliance, and novice repair experience. If you are unsure, consult a qualified technician.
Product Overview
The W11416363 Dishwasher Pump and Motor Assembly is a critical component responsible for circulating water through the spray arms during the dishwashing cycle. This genuine OEM part ensures proper water distribution for effective cleaning.

Figure 1: Front view of the Whirlpool W11416363 OEM Dishwasher Pump and Motor Assembly. This image shows the main body of the pump and motor unit.

Figure 2: Side view of the Whirlpool W11416363 OEM Dishwasher Pump and Motor Assembly. This angle highlights the various connections and the motor housing.

Figure 3: Back view of the Whirlpool W11416363 OEM Dishwasher Pump and Motor Assembly. This view provides a different perspective of the assembly's components.
Compatibility
The W11416363 Dishwasher Pump and Motor Assembly is compatible with the following Whirlpool model numbers:
- MDB4949SKZ
- MDB8959SKZ
- MDB9959SKZ
- MDB4949SKW
- MDB9979SKZ
This part replaces the previous part number W11197948. Always verify your appliance's model number to ensure compatibility.
Installation Instructions
The following are general guidelines for replacing the dishwasher pump and motor assembly. Specific steps may vary by dishwasher model. Refer to your dishwasher's service manual for detailed instructions.
- Preparation: Ensure the dishwasher is unplugged and the water supply is turned off. Clear the area around the dishwasher for access.
- Access the Assembly: This typically involves removing the lower access panel of the dishwasher and potentially tilting the unit.
- Disconnect Components: Carefully disconnect any electrical wiring, hoses, and mounting brackets attached to the old pump and motor assembly. It is highly recommended to take photos or make notes of wire connections before disconnecting them to aid in reassembly.
- Remove Old Assembly: Once all connections are detached, remove the old pump and motor assembly from the dishwasher.
- Install New Assembly: Position the new W11416363 assembly and secure it with the appropriate mounting hardware.
- Reconnect Components: Reattach all electrical wiring and hoses to the new assembly, ensuring all connections are secure and correctly matched according to your notes or photos.
- Test and Reassemble: Restore the water supply and power to the dishwasher. Run a short cycle to check for leaks and proper operation before fully reassembling the dishwasher panels.
Maintenance Tips
To maintain the performance of your dishwasher and its components, including the pump and motor assembly, consider the following:
- Regular Cleaning: Use affresh® Dishwasher Cleaner (item W10282479) periodically to help reduce limescale and mineral build-up. This can prevent strain on the pump and motor and improve cleaning efficiency.
- Inspect for Debris: Occasionally check the dishwasher's filter and drain area for food particles or other debris that could obstruct the pump.
Official Product Video
Video 1: Whirlpool Genuine Parts. This video highlights the importance of using genuine OEM parts for Whirlpool appliances, emphasizing quality, durability, and perfect fit.
Specifications
| Feature | Detail |
|---|---|
| Brand Name | Whirlpool |
| Model Info | W11416363 |
| Item Weight | 10.14 pounds |
| Product Dimensions | 13.5 x 15.5 x 9.5 inches |
| Item Model Number | W11416363 |
| Part Number | W11416363 |
| Included Components | Genuine OEM Dishwasher Pump and Motor Assembly Replacement Part |
| Batteries Required? | No |
Warranty Information
Whirlpool offers a one-year warranty on this genuine OEM part. This warranty covers defects in materials and workmanship under normal use. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact Whirlpool customer support.
Support
For further assistance, troubleshooting, or to purchase additional genuine Whirlpool parts, please visit the official Whirlpool website or contact their customer service department. Using genuine OEM parts ensures compatibility and maintains the performance of your appliance.





