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Khmc1857bss Parts

Some parts shown may not be for your model. To see parts for your model only, select it from "Matching Model Numbers" list on the left.

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Air Damper
Genuine Whirlpool part
By: Whirlpool
Part Number: W10843943

The Air Damper is an OEM part for Whirlpool microwave/range hood combos. It is a crucial component that regulates the flow of air into the microwave cavity, helping to maintain proper temperature and airflow during operation.

Symptoms of a faulty Air Damper include:

  • Overheating or uneven heating of food items
  • Excessive noise or rattling sounds during operation
  • Error codes related to temperature or airflow issues

Causes of a bad Air Damper can include wear and tear over time, physical damage or obstruction, or issues with the damper's motor or control system.

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore microwave models.

Do-It-Yourself Stories from Customers like You Microwave vented into kitchen   Henry T. • Brighton , CO • April 21, 2014

Bought a new home with microwave venting into kitchen. Ordered damper assembly needed to vent through the wall to the outside. Removed microwave, followed directions in original installation instructions, turned fan over, cut hole in wall, installed wall cap and replaced oven. Problem solved. Read more

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Diode
Genuine Whirlpool part
By: Whirlpool
Part Number: W11256462

The Diode is an OEM part for Whirlpool microwaves. The diode plays a key role in regulating power flow and protecting other sensitive components from voltage fluctuations.

Causes of a bad microwave diode can include component failure due to age or heat exposure over time. Diodes are also susceptible to electrical damage if exposed to power surges.

Symptoms of a bad diode can include:

  • The microwave failing to power on or having intermittent power
  • Food not heating up properly or unevenly
  • Strange sounds like buzzing or humming emanating from inside
  • The door lock mechanism not engaging or release properly
  • Repeated tripping of fuses or circuit breakers

This genuine OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

Do-It-Yourself Stories from Customers like You Loud hum/buzz & no heat   Greg S. • Springfield , VA • November 30, 2015

Replacing a magnetron in my particular 9-year-old microwave (a microwave/hood combination) was not a simple “plug & play” operation. That is why I am placing this in the slightly difficult area. First, it takes 2 people to remove the microwave from the top of the stove. Next the main outer panel need to be removed. After that, 2 sheet metal panels need to be removed in order to expose the high voltage components for testing. Always discharge the high voltage capacitor first before doing... Read more

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Spring
Genuine Whirlpool part
By: Whirlpool
Part Number: W10156812

The Interlock Spring is an OEM part for Whirlpool microwaves. It is located within the door assembly and provides proper tension to assist with smooth opening and closing of the microwave door. The spring allows for controlled movement that facilitates easy access when using the microwave.

Causes of failure could be normal wear and tear over time, damage from rough or forced handling of the door, or failure from excessive use.

Symptoms of a bad microwave spring include:

  • Difficulty opening or closing the door
  • The door not staying securely closed or popping open on its own
  • Excessive vibration or noise related to door operation

This is a genuine Whirlpool OEM replacement this part is also compatible with Maytag, Jenn-Air, and some Kenmore models.

Do-It-Yourself Stories from Customers like You Microwave would not work, bad door switch.   Gregory P. • Houston , TX • December 10, 2018

Checked switch with a voltmeter, determined the switch was bad. Ordered a new switch....watched a short how to you-tube video.....and from there.....it was fixed. Read more

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Magnetron
Genuine Whirlpool part
By: Whirlpool
Part Number: W10245183

The Magnetron is an OEM part for Whirlpool microwaves. This part generates the microwave energy necessary for cooking and heating food.

Causes of a bad Magnetron can include normal wear and tear over time, power surges or electrical issues, or physical damage from impact or mishandling.

Symptoms of a bad Magnetron include:

  • The microwave not heating or cooking food properly
  • Arcing or sparking inside the microwave cavity
  • Strange noises or buzzing sounds during operation
  • Burning smells or smoke coming from the microwave

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

This part fixes the following symptoms
  • No heat
See more...
Do-It-Yourself Stories from Customers like You Loud hum/buzz & no heat   Greg S. • Springfield , VA • November 30, 2015

Replacing a magnetron in my particular 9-year-old microwave (a microwave/hood combination) was not a simple “plug & play” operation. That is why I am placing this in the slightly difficult area. First, it takes 2 people to remove the microwave from the top of the stove. Next the main outer panel need to be removed. After that, 2 sheet metal panels need to be removed in order to expose the high voltage components for testing. Always discharge the high voltage capacitor first before doing... Read more

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Grill-Vent (Blk)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10245218

Color: Black

The Grill-Vent (Black) is an OEM part for Whirlpool microwaves. This vent grille covers the microwave's internal components, allowing airflow while maintaining a clean and finished exterior appearance.

Causes of a bad grill-vent can include physical impacts, heat exposure over time, or wear and tear from regular use. 

Symptoms of a bad grill-vent include:

  • Cracks or visible damage on the vent
  • The vent becoming loose or not staying in place
  • Reduced airflow leading to overheating
  • The microwave exterior appearing unfinished or damaged

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

Do-It-Yourself Stories from Customers like You The vent grill cracked   Edward M. • Dover , DE • August 07, 2015

Ordered new grill from your department. Read more

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Mounting Hardware Kit
Genuine Whirlpool part
By: Whirlpool
Part Number: 8205948

For mounting also consider WPW10269225 mounting plate

Do-It-Yourself Stories from Customers like You We needed an assembly kit and turntable for wmh32517as 1   Jewell L. • Cincinnati , OH • March 01, 2015

We found the parts on this website. Thanks to your search bar, we could see if the parts would work on our model microwave. Read more

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Grill-Vent (Wht)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10245217

Color: White

Do-It-Yourself Stories from Customers like You Broken microwave vent grille.   Robert M. • Jackson , OH • July 31, 2017

New vent grille arrived in 2 days - installed with 2 screws - very straightforward - done! Read more

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Reflector
Genuine Whirlpool part
By: Whirlpool
Part Number: W10240330

The Reflector is an OEM part for Whirlpool microwaves. It is located inside the microwave cavity behind the waveguide and works to redirect electromagnetic waves for more even cooking.  

Symptoms of a damaged reflector include:

  • Inconsistent or incomplete heating of foods during cooking
  • Hot and cold spots forming within the microwave cavity
  • Lower overall power output from the microwave

Causes of reflector damage can be cracking or pitting of the reflective aluminum surface over multiple heating cycles. Impact incidents from user error may also damage its shape.

This OEM Whirlpool replacement assists in delivering uniform energy distribution for optimal microwave performance. This part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, and Roper microwave models.

Do-It-Yourself Stories from Customers like You Light not going on and cover missing.   Jerry J M. • Monona , WI • August 02, 2020

When the new bulb didn't want to go in, I felt around and realized the base of the old bulb was still in there. With some effort I got it out and new bulb in, Light cover fit fine, but did not come with a screw to hold it in. That would have been helpful. Read more

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Rack
Genuine Whirlpool part
By: Whirlpool
Part Number: W10440082

Replace a damaged rack to restore safe, stable support and smooth sliding in the appliance. A new rack brings back full capacity and dependable performance when the original is bent, rusted, or missing.

  • Provides a sturdy, level surface to hold items securely during operation
  • Slides on existing rails for easy loading and unloading
  • Replaces racks that are bent, broken, rusting, or missing
  • Helps prevent items from tipping, rattling, or shifting
What's included: 1 rack Install notes:
  • Disconnect power and allow any hot surfaces to cool before servicing
  • Pull the old rack straight out; retain and transfer any reusable hardware if required
  • Align the new rack with the rails and slide it in until fully seated
  • Verify smooth travel and proper fit before returning the appliance to service

Do-It-Yourself Stories from Customers like You Lost accessories.   Marty P. • Oriental , NC • January 29, 2018

The parts pro I spoke to on the phone was very helpful in ordering the correct parts. I simply installed the ordered parts inside the convection/microwave. They fit perfectly. Read more

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Meal Rack (Microwave)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10249618

Restore your microwave's two-level cooking capability. This removable meal rack sits above the turntable to support a second layer of dishes during approved modes, replacing a lost or damaged rack so food heats and circulates as intended.

  • Creates a second level for multi-item cooking when your model supports rack use
  • Positions food for proper airflow during convection, grill, or combination cycles
  • Direct replacement for an original rack that is missing, bent, or corroded
  • Addresses wobbling or arcing that can occur with a damaged or improperly positioned rack
What's included: 1 meal rack Install notes:
  • Use only in models designed for a rack; your owner's manual for approved modes and placement
  • Set the rack on the designated supports and ensure it does not contact the cavity walls
  • Remove the rack for standard microwave-only cycles if your manual instructs
  • Allow the oven to cool before handling the rack

Do-It-Yourself Stories from Customers like You Used motorhome microwave did not have racks or steamer cookware.   Pamela T. • Medaryville , IN • February 26, 2024

Whirlpool Parts said they no longer carried these replacements. ApplieancePartsPros.com not only had the parts, but shipped them immediately and I had them the next day! Quite impressive. Read more

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Nut
Genuine Whirlpool part

Nut

By: Whirlpool
Part Number: W10596040

The Nut is an OEM part for Whirlpool microwaves. It helps secure various parts within the microwave, ensuring proper assembly and function. It is used to fasten items, keeping them securely in place during use.

A bad microwave nut can occur due to wear and tear over time or accidental damage. If the nut becomes loose, stripped, or misplaced, it can lead to instability and compromise affected parts.

Symptoms of a bad microwave nut include:

  • Loose or wobbly parts.
  • Difficulty in operating the microwave.
  • Unusual noises or vibrations during use.

This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.

Do-It-Yourself Stories from Customers like You Broken mounting nut for Whirlpool microwave   Peggy W. • Indianapolis , IN • July 16, 2018

Removed the microwave from the upper cabinet, then (partially) removed the black cover. We were able to access and remove the old mounting nut from inside the unit, and clip on the new one! Read more

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Support
Genuine Whirlpool part
By: Whirlpool
Part Number: W10840759

This support secures and stabilizes a mating component inside your appliance, helping restore proper alignment and fit. Replace a damaged or missing support to stop wobble, sagging, or misalignment.

  • Provides structural backing to keep the attached part level and in place
  • Helps eliminate rattling, shifting, or uneven gaps
  • Replace if cracked, deformed, or missing
  • Symptoms can include loose or sagging parts, poor alignment, or difficulty reinstalling shelves/panels
What's included: 1 support Installation notes:
  • Disconnect power (and shut off water, if applicable) before service
  • Remove the affected shelf/drawer/panel to access the support
  • Transfer and reuse any model-specific fasteners or clips
  • Seat the new support fully and check alignment before reassembly

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Capacitor (Magnetron)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10850446

This magnetron capacitor is the microwave high-voltage capacitor that helps supply the magnetron with the pulse of energy needed to produce heat. Replacing a failing capacitor restores normal heating performance and reduces arcing or loud humming. What it does

  • Stores and releases the high-voltage pulse required by the magnetron so the microwave can generate heat.
  • Prevents unstable magnetron operation that can cause weak or no heating.
  • Common symptoms of a failing capacitor: oven runs but doesn't heat, intermittent heating, loud buzzing/humming, or visible arcing inside the cavity.
  • A failed capacitor can also cause blown internal fuses or tripped circuits.
What's included
  • One capacitor.
Install notes
  • Disconnect power and verify the appliance is completely de-energized before servicing.
  • Capacitors can hold dangerous charge; discharge the capacitor safely with an insulated tool.
  • Use the exact replacement part and follow the appliance service manual for routing and connections.

Do-It-Yourself Stories from Customers like You My microwave was working at half power   Eric H. • Tonawanda , NY • October 30, 2015

I ordered a new magnetron and a new capacitor and after they arrived I set to work. I took plenty of pictures with my phone to remind me how the components came apart but it was pretty straight forward. Once the new parts were in and everything was reassembled the microwave worked good as new. The repair was less than a third the cost of replacement and no special tools are required. Just be careful to discharge the capacitor. This website is a great resource. Read more

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Door Handle (Replacement), Single
Genuine Whirlpool part
By: Whirlpool
Part Number: W10276431

Genuine Whirlpool door handle that restores a secure grip and the appliance's original appearance, making it easier to open and close the door while replacing cracked, broken, or missing handles. What it does

  • Provides a firm, ergonomic pull for opening and closing the appliance door.
  • Replaces cracked, broken, loose, or missing handles that cause wobble or difficulty opening.
  • Restores the door's original fit and appearance for a cleaner, finished look.
  • Durable construction resists everyday wear and returns the intended function of the door.
What's included One door handle. Install notes
  • Safety first: disconnect power (and water supply for units with dispensers) before starting any repair.
  • Remove old handle by loosening visible screws or releasing mounting clips; keep any original fasteners if they are reusable.
  • Align handle mounting tabs or screw holes, then secure evenly—do not overtighten fasteners to avoid cracking the handle.
-

Do-It-Yourself Stories from Customers like You Broken handle   Nick L. • Eastpoint , MI • April 04, 2016

Took it apart Read more

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Cookware
Genuine Whirlpool part
By: Whirlpool
Part Number: W10660052

This replacement cookware piece is designed for use inside compatible appliances to provide the correct, heat-resistant cooking surface. Restore performance and safety when the original accessory is lost, warped, or damaged. What it does:

  • Provides the proper cooking surface intended for your unit
  • Supports even heating and consistent results when used as directed in the owner's manual
  • Restores stability and fit if the original piece is bent or worn
  • Common symptoms: missing accessory, uneven or inconsistent results, wobbling or poor fit
What's included:
  • 1 cookware piece
Install notes:
  • Check your model's manual for approved uses, placement, and any preheating directions
  • Use oven mitts and allow the cookware to cool before handling or cleaning
  • Do not use if cracked, chipped, or warped; replace to avoid poor results or breakage
  • Clean with non-abrasive methods recommended by the manufacturer; avoid thermal shock

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Light Housing (Interior Lamp)
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10210878

This Light Housing secures and protects the interior lamp assembly, helping keep the compartment safely illuminated. Replace a cracked or heat-damaged housing to restore a stable bulb fit and consistent lighting performance. What it does:

  • Provides a stable mount for the interior light bulb/socket
  • Shields nearby wiring and components around the lamp area
  • Helps position the light for proper illumination inside the compartment
  • Common signs of wear: cracked or melted housing, loose bulb fit, lens/cover won't stay attached, intermittent lighting from a poor physical connection
What's included:
  • 1 light housing
Install notes:
  • Disconnect power to the appliance before servicing
  • Remove the lens/cover and bulb, then unfasten the damaged housing
  • Transfer the existing socket, wiring, and any hardware from the old housing as needed
  • Reinstall the housing, replace bulb/cover, restore power, and test the light

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  • time delivery images 2 Day Quick Delivery!
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