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

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