Wall Oven Microwave Safety Thermostat 4375279

Brand: KitchenAid · Appliance: Microwave · Fits: 561 models · Reference price: $52.34

4375279 is a KitchenAid replacement part (wall oven microwave safety thermostat) for microwaves. Our fitment data lists 561 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 4375279 as the replacement for these earlier part numbers. Substitute parts can look different from the original but serve the same function.

• 4375430 — Wall Oven Microwave Thermostat
• W11607085 — THRMST-FIX

Other parts for model KEHC309JSS4

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

• Air Baffle 4375425
• Baffle 4450408
• Control Panel 4453170
• Control Panel 4453172
• Control Panel 4453174
• Cook Guide LIT4452967
• Installation Instructions LIT8300653
• Microcomputer 4452953

Reference price and where to compare

The reference price on file for this part is $52.34. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare 4375279 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