Whirlpool Dryer High-limit thermostat and inlet thermistor assembly WP8557403, Replaces 8557403

Genuine Whirlpool high-limit thermostat and inlet thermistor assembly mounted on the heating-element housing. The thermostat is rated L295-80F; the thermistor should measure approximately 50–60 kΩ at room temperature.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• No heat or insufficient heat
• Overheating
• Unexpected shutdown during a heated cycle
• Temperature-related dryer error codes when the thermistor is open, shorted, or out of range

Check Before Replacing

• Disconnect electrical power before testing or servicing.
• Inspect the assembly, terminals, and wiring for visible damage, looseness, or burned connections.
• Check the dryer vent and airflow path for lint or restriction, because restricted airflow can cause overheating and repeat temperature-component failures.
• With the dryer unplugged, measure the thermistor resistance at room temperature; Whirlpool lists approximately 50–60 kΩ as the expected range.
• Use the applicable dryer technical sheet to verify high-limit thermostat continuity and thermistor resistance for the specific model; do not bypass either safety or sensing component.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM high-limit thermostat and inlet thermistor assembly
• Mounts on the dryer heating-element or heater housing
• High-limit thermostat rating: L295-80°F (approximately L146.1-44.4°C)
• Integrated inlet thermistor should measure approximately 50–60 kΩ at room temperature
• Thermistor and high-limit thermostat are supplied as one assembly for applicable models

Installation Notes

• Disconnect the dryer from electrical power before installation.
• Access the heater housing according to the dryer model's service procedure.
• Photograph or label wire connections before disconnecting the original assembly.
• Compare the replacement assembly's terminals, mounting position, and connector arrangement with the original before installation.
• Reconnect wiring exactly as required by the model-specific wiring diagram and confirm that the exhaust path is clear before testing.

Verified Compatible Models

WED75HEFW1, WED85HEFC0, WED85HEFC2, WED85HEFW0, WED92HEFBD0, WED92HEFC0, WED92HEFU0, WED92HEFW0, WED8000DW2, WED8000DW3, WED8000DW4, YWED85HEFC2, YWED85HEFW1, YWED85HEFW2

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