Whirlpool Refrigerator Defrost Bimetal Thermostat - WP4387503

Whirlpool Refrigerator Defrost Bimetal Thermostat - WP4387503

Restore proper appliance temperature control with this genuine OEM Whirlpool Refrigerator Defrost Bimetal Thermostat. This part provides temperature or safety feedback used by the control to regulate operation and protect the appliance.

WP4387503 is a genuine OEM Whirlpool Refrigerator Defrost Bimetal Thermostat. Because visually similar service parts can differ by model revision, connector, mounting, or specification, confirm the exact model before installation.

Compatibility: Designed for select Whirlpool refrigerator models that specify WP4387503 in the service parts list. Model-number verification is required.

Fitment / What To Verify: Match the exact sensing function and location, connector, mounting, and model-specific calibration/rating when specified. Similar sensors and thermostats may use different electrical characteristics.

Please confirm fitment with your appliance or equipment model number before ordering.

Is it time to replace?

• Common Symptoms: Temperature control is inaccurate, heating/cooling cycles incorrectly, or a temperature/safety related fault is present.
• Visible/Sensory Cues: Damaged sensor body, burned or open thermal device, corroded connector, broken wire, or abnormal continuity/resistance for the specified test.

Pro Tip: Test the device and harness using the manufacturer procedure when possible; verify the fault is not caused by airflow, overheating, or another failed component.

Technical Specifications