Microwave Thermal Cut-Off 4393943

Brand: Kenmore · Appliance: Microwave · Fits: 10 models · Reference price: $4.20

4393943 is a Kenmore replacement part (microwave thermal cut-off) for microwaves. Our fitment data lists 10 models that use it.

When to replace this part

Heat control (thermostats, fuses, heating element)

Symptom: The appliance runs but heats or cools inconsistently, or shuts off partway through a cycle.

Check: With the appliance unplugged, check continuity across the part with a multimeter -- no continuity means it has failed.

Models that use this part

Part numbers it replaces

The manufacturer lists 4393943 as the replacement for these earlier part numbers. Substitute parts can look different from the original but serve the same function.

• W11256462 — DIODE
• WPW10492276 — Microwave High-Voltage Diode

Other parts for model 66568600890

If you are repairing that appliance, these are the most model-specific parts on file for the same model.

• Grease Filter 4393691
• Microwave/Hood Grille Vent 4393727
• Microwave/Hood Grille Vent 4393728
• Magnetron 4393604
• Microwave Keypad Support Panel 8183710
• Microwave Thermal Cut-Off W10479659
• Microwave Vent Motor Capacitor 4393709
• Resistor 4393707

Reference price and where to compare

The reference price on file for this part is $4.20. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare 4393943 listings on Amazon

Before you order

• Match the part number character for character, including dashes and trailing letters; a single different character is usually a different part.
• Confirm your appliance's model number on its data plate and check that it appears in the list above (or use the model lookup tool).
• If a seller offers a substitute number, check that it appears in this page's replacement list or in the manufacturer's documentation.

Model lookup tool