Parts for KEMC378KBT04 — KitchenAid Microwave

We found 53 parts confirmed to fit the KitchenAid Microwave KEMC378KBT04.

Compatibility table

Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.

Common failure areas on this model

The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.

Storage, trim and cosmetic hardware

Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.

Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.

Parts in this group on KEMC378KBT04: WP4452398 (Microwave Torsion Spring Right Side), 11008010 (Dishwasher Base Panel), WP4451008 (Torsion Spring - Black/White/Biscuit - Left Side), 4375412 (Mounting Bracket), 4375413 (Mounting Bracket), 5304505102 (Washer Front Panel Clip), 5304505082 (Dryer Top Panel (Titanium)), 5304505675 (Electrolux Microwave Waveguide Cover), 4452220 (Convection Rack - Short), WP9760575 (Door Hinge), WP9760576 (Door Hinge), 4448715 (Oven Rack), W11373838 (Microwave Turntable Tray), WP4455606 (Range Door Receiver Hinge Right Side), 5304505353 (Dryer Lint Screen Housing), WP4450038 (Range Control Panel Vent Screw), W10877169 (Dishwasher Dishrack Guide), W10123240 (Broiler Pan with Roasting Rack), 814381 (Hinge Pin Kit).

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Parts in this group on KEMC378KBT04: 137412601 (Washer Single Stage Shock Absorber), JXGRATE1 (Center Burner Grate), WP8304106 (Wall Oven Vent), 5304505119 (Dryer Door Outer Window), W10727408 (Switch Kit), 4375278 (Fan Motor), WP8183788 (Microwave Turntable Drive Coupler), 4375348 (Oven Baseless Lamp), 4375346 (Microwave Door Interlock Switch), W11607085 (THRMST-FIX), 4449253 (Wall Oven Door Inner Glass), W11361286 (Blower Motor), W10892387 (Charcoal Filter), 6610168 (Blower), 4375321 (Fuse (Black)), 4451175 (Bake Element), WPW10016550 (Range Blower Motor Assembly), 423107022541 (Reflector), 5304505700 (Freezer Compressor Start Relay), W11193483 (Lamp Lens), 8186589 (Meat Probe Receptacle), W10245194 (Microwave Fuse Holder), W10877562 (Door Glass), 4448520 (Range Door Bumper (Black)), 4455636 (Wall Oven Temperature Sensor), 350930 (Spray Paint - 12 oz. - White), 72017 (Touch-Up Paint - White).

Controls, timers and wiring

Symptom: A cycle that doesn't advance, an unresponsive display, or the unit not starting at all.

Check: Look for burn marks or a burnt smell near the board or terminals, and check whether buttons and knobs respond -- a unit that powers on but won't cycle often traces back to this group.

Parts in this group on KEMC378KBT04: 4375436 (Capacitor), W10888661 (Electric Control Board).

Door and drum seals

Symptom: A door or drum seal that has lost its grip, letting water or conditioned air escape past it.

Check: Inspect the seal for tears, flattening, or gaps, and check it against your model's part number before ordering.

Parts in this group on KEMC378KBT04: 5304505111 (Dryer Door Seal), WP4455381 (Range Door Gasket).

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.

Parts in this group on KEMC378KBT04: 4375279 (Wall Oven Microwave Safety Thermostat).

Interior lighting

Symptom: The interior light doesn't turn on when the door opens.

Check: Confirm power is reaching the socket, then check the door-activated light switch before assuming the bulb itself is at fault.

Parts in this group on KEMC378KBT04: WPW10440740 (Microwave Halogen Bulb), WP4448972 (Oven Halogen Light Assembly).

Before you buy

Match KEMC378KBT04 exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.

How to confirm this is your model

On most microwaves, the model and serial plate sits inside the door frame. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.

Neighbouring KitchenAid Microwave models

These model numbers sort next to this one in the catalog and are usually the same product family.

• KEMC378KSS01 — 59 parts
• KEMC378KSS02 — 46 parts
• KEMC378KSS03 — 51 parts
• KEMC378KSS04 — 53 parts
• KEMC378KWH0 — 51 parts
• KEMC378KBT03 — 49 parts
• KEMC378KBT02 — 49 parts
• KEMC378KBT01 — 53 parts
• KEMC378KBT0 — 50 parts
• KEMC378KBL04 — 54 parts

Other models with this exact parts list

Each model below is confirmed to share the identical compatible-parts list with this one.

• KEHC379JBL08 — 52 parts

Still not sure?

Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.