Defrost Thermostat fits Whirlpool, Sears, WP4387503, PS11742474, WP4387503

❄️ Refrigerator Defrost Thermostat | Tube Mount | Opens at 44°F / Closes at 18°F | Replaces Whirlpool & More | Part #WP4387503

Restore proper defrost cycling and prevent ice buildup with this brand-new Exact Replacement Parts defrost thermostat, part #WP4387503. Designed for tube-mount applications, this thermostat opens at 44°F and closes at 18°F to regulate defrost heater operation. Compatible with a wide range of Whirlpool-manufactured brands including Kenmore, Roper, Estate, and KitchenAid, it’s a reliable fix for cooling issues caused by failed defrost sensors.

⚙️ Product Features:

• ️ Opens at 44°F / Closes at 18°F for precise defrost control
• Tube mount design for secure evaporator coil installation
• OEM-style wiring and terminals for direct replacement
• ️ Helps prevent frost buildup and uneven cooling
• Condition: Brand New – Unused

Replaces Part Numbers:

• WP4387503, AP6009317, 4387503, 2149641, 2149643
• 2163894, 2172694, 2182380, 2183072, 2221677
• 4343917, 586213, 61002113, PS11742474, R0950042, WP4387503VP

✅ Compatible With Brands:

• Whirlpool
• Sears / Kenmore
• Roper
• Estate
• KitchenAid

️ Installation Tips:

• Disconnect power before servicing refrigerator components
• Access evaporator coil area behind freezer panel
• Remove old thermostat and gently detach from tubing
• Clip new thermostat securely to coil and connect wires
• Run defrost cycle to confirm proper heater activation

⚠️ Installation Disclaimer:

This defrost thermostat is intended for use by qualified appliance technicians or experienced DIYers. Buyer is responsible for verifying compatibility with their specific refrigerator model. Improper installation may result in cooling failure, frost buildup, or electrical damage. Returns are not accepted on installed or used parts due to contamination and safety risks.

Reliable defrosting. OEM-level performance. Built for Whirlpool-family refrigeration systems.