High-limit thermostat
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Blower
Replaces W11397930
A noisy or stopped fan means poor airflow and uneven temperatures.
Magnetron 2m
Replaces W11504545
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Light bulb
The light bulb this model takes.
Probe, sensor
Replaces W11346074
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Turntable motor
Replaces 461967848971
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Switch
Replaces 461967848881
Door, lid and control switches stop a cycle when they fail.
Interlock
Replaces W10358241
Door, lid and control switches stop a cycle when they fail.
1ThermostatWP4449751
2BlowerW11598119
3Magnetron 2mW11578959
4Light bulb8009Part numbers come from the Sears PartsDirect parts list for the KitchenAid KOCE507ESS21 (view the list), checked November 15, 2026. Amazon buttons open a search for the part number; we may earn a commission.
Where the model number is
Open the oven door: the plate is on the frame or the side trim.