[Lifetime Warranty] 4387503 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool & Kenmore Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317

4387503 Refrigerator Bimetal Defrost Thermostat

Key Features

• Clips onto the refrigerator evaporator coil
• Monitors evaporator temperature
• Acts as a safety device to prevent overheating during the defrost cycle
• Turns off the defrost heater after ice and frost have melted

Replaces / Cross-Reference Part Numbers

• 4387503
• WP4387503
• AP6009317
• PS11742474
• 2149641
• 2149643
• 2163894

Compatibility & Fitment

• Designed for use with major refrigerator brands including Whirlpool, Kenmore, and Speed Queen.
• Compatible with numerous specific refrigerator and freezer models.

When to Replace

• Refrigerator is too warm
• Freezer section is too cold
• Excessive frost buildup on evaporator coils
• Appliance fails to complete a defrost cycle
• Refrigerator runs continuously

Installation Tips

• Disconnect the appliance from its power source before beginning the repair.
• Access the evaporator coil, typically located behind a panel in the freezer compartment.
• The thermostat clips directly onto the evaporator tubing.
• Ensure the replacement part is securely attached in the same position as the original.