Parts for 40188529900 — Microwave

We found 11 parts confirmed to fit the Microwave 40188529900.

Same parts list as 40188522900 (Microwave). 40188529900 shares an identical confirmed parts list with 40188522900 (Microwave). That page is the canonical version of this parts list — use it if you want the primary reference, or stay here since the list below is exactly the same for 40188529900.

Compatibility table

All 11 confirmed parts, ordered so parts that fit fewer models (more specific to this appliance) appear first.
Part #PartAlso fitsReference price
DE4700032DMicrowave Light Socket and Harness Assembly4 models
DE3260013AGas Sensor43 models
WPDE7240022AMain Damper47 models$28.18
DE6740063ACook-glass52 models
DE3260011AMicrowave Humidity Sensor112 models
OM75P21ESGNMicrowave Magnetron OM75P-21-ESGN116 models$168.66
4713001165Light Cavity122 models
DE5900002ADiode143 models
DE9170063DMicrowave High-Voltage Diode DE91-70063D211 models$25.10
3405001033Microwave Door Micro-Switch256 models
3405001034Microwave Door Interlock Switch467 models

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.

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 40188529900: DE4700032D (Microwave Light Socket and Harness Assembly), 4713001165 (Light Cavity).

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 40188529900: DE3260013A (Gas Sensor), WPDE7240022A (Main Damper), DE6740063A (Cook-glass), DE3260011A (Microwave Humidity Sensor), OM75P21ESGN (Microwave Magnetron OM75P-21-ESGN), DE5900002A (Diode), DE9170063D (Microwave High-Voltage Diode DE91-70063D), 3405001033 (Microwave Door Micro-Switch), 3405001034 (Microwave Door Interlock Switch).

Before you buy

Match 40188529900 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.

Other microwave models

These model numbers sort close to this one in the catalog for the same appliance type. The brand is not confirmed to match, but the model number range is close.

Still not sure?

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