Parts for KBMS1454RSS0 — Whirlpool Microwave
We found 16 parts confirmed to fit the Whirlpool Microwave KBMS1454RSS0.
Same parts list as KBMS1454RBT0 (Whirlpool Microwave). KBMS1454RSS0 shares an identical confirmed parts list with KBMS1454RBT0 (Whirlpool 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 KBMS1454RSS0.
Compatibility table
| Part # | Part | Also fits | Reference price |
|---|---|---|---|
| 8205661 | Capacitor | 4 models | — |
| 8205663 | Electronic Control | 4 models | — |
| 4375320 | Microwave Light Reflector | 21 models | — |
| WPW10124269 | Microwave Led Display Board | 25 models | $132.20 |
| 8205692 | Transformer | 28 models | — |
| W11700293 | Door Hinge | 30 models | $45.29 |
| W10871220 | SENSOR | 30 models | $88.35 |
| W11676348 | THRMST-FIX | 30 models | $35.80 |
| W10852735 | Thermostat | 30 models | $115.48 |
| W11087199 | Waveguide Cover | 30 models | $20.37 |
| 4375318 | Lamp Lens | 55 models | — |
| WPW10128850 | Arm | 77 models | $31.70–$61.55 |
| 8205683 | Interlock | 245 models | — |
| 4375348 | Oven Baseless Lamp | 603 models | — |
| 4375346 | Microwave Door Interlock Switch | 605 models | — |
| 4375321 | Fuse (Black) | 758 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.
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 KBMS1454RSS0: 8205661 (Capacitor), 8205663 (Electronic Control).
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 KBMS1454RSS0: 4375320 (Microwave Light Reflector).
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 KBMS1454RSS0: WPW10124269 (Microwave Led Display Board), 8205692 (Transformer), W10871220 (SENSOR), W11676348 (THRMST-FIX), 4375318 (Lamp Lens), WPW10128850 (Arm), 8205683 (Interlock), 4375348 (Oven Baseless Lamp), 4375346 (Microwave Door Interlock Switch), 4375321 (Fuse (Black)).
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 KBMS1454RSS0: W11700293 (Door Hinge), W11087199 (Waveguide Cover).
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 KBMS1454RSS0: W10852735 (Thermostat).
Before you buy
Match KBMS1454RSS0 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 Whirlpool Microwave models
These model numbers sort next to this one in the catalog and are usually the same product family.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.