Whirlpool Dryer High-limit thermostat and inlet thermistor assembly 8557403, Replaces 8557403

Whirlpool high-limit thermostat and inlet thermistor assembly mounted on the dryer heating-element housing.

Is This the Right Part?

Common Symptoms

• Dryer overheating
• Incorrect heated-air temperature readings
• Heating operation interrupted by a failed high-limit thermostat
• No heat when the thermostat is open or defective

Check Before Replacing

• With power disconnected, inspect the assembly and wiring for visible damage or loose connections.
• Test the thermistor according to the applicable service documentation; Whirlpoolparts.com reports approximately 50–60 kΩ at room temperature.
• Check thermostat continuity only when the component is cool, using the appliance service procedure and appropriate electrical safety precautions.

Pro Tip

Part Details

Key Features

• High-limit thermostat rating: L295–80°F.
• Integrated inlet thermistor.
• Thermistor expected resistance is approximately 50–60 kΩ at room temperature.
• OEM replacement for original part number 8557403.

Installation Notes

• Disconnect electrical power before servicing the dryer.
• Access is generally at or near the heating-element housing; follow the model-specific service documentation.
• Do not bypass the high-limit thermostat or operate the dryer with damaged safety components.

Verified Compatible Models

WED75HEFW1, WED85HEFC0, WED85HEFC2, WED85HEFW0, WED92HEFBD0, WED92HEFC0, WED92HEFU0, WED92HEFW0, WED8000DW2, WED8000DW3, WED8000DW4, YWED85HEFC2, YWED85HEFW1, YWED85HEFW2, WED92HEFW1, WED92HEFW2, WED8500DC0, WED8500DC1

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.