Parts for Whirlpool MT4078SPQ4: 05 - Oven Interior Parts

This propeller is the small impeller that mounts to the dishwasher circulation pump to move wash water through the spray arms for effective cleaning. Replacing a worn or damaged propeller restores proper water flow and wash performance. What it does:

• Spins on the pump shaft to circulate wash water through the spray arms
• Restores normal water flow when a cracked or stripped propeller reduces circulation
• Helps resolve symptoms such as poor cleaning, weak spray, or inconsistent water movement
• Works with the pump motor; does not include the motor or pump housing

• Disconnect power and water supply before beginning any repair
• Access the pump assembly from the dishwasher base or cabinet front per your model service instructions
• Inspect the pump shaft and seal for wear; replace damaged components to prevent repeat failure
• Reassemble carefully and test operation

The high voltage wire carries electrical current from the transformer to the magnetron inside the microwave. Replace it if the microwave doesn't heat food, sparks internally, or fails to start completely.

This replacement power cord restores the electrical connection to your appliance so it powers reliably. Designed as a direct-fit cord assembly to replace a damaged or worn lead and help restore normal operation. What it does:

• Provides the main AC connection between the appliance and your household outlet
• Replaces frayed, cut, or broken cords that can cause loss of power or intermittent operation
• Helps eliminate sparking or exposed wiring hazards from a damaged cord
• Restores safe, stable power delivery when the cord is the root cause of power issues

• Disconnect power at the breaker and unplug the appliance before starting any work
• Route and secure the cord per the appliance wiring diagram; avoid pinching or sharp bends
• Do not attempt to splice or modify the cord