Khms1850sss-1 Parts

This mounting plate anchors the back of an over-the-range microwave to the wall studs, providing the primary support for installation. Replace a bent, damaged, or missing plate to restore a safe, level, and secure mount.

• Provides the rear-wall anchor point the microwave hangs on during installation
• Helps keep the unit level and securely supported under normal use
• Enables proper alignment so top mounting hardware can fasten correctly
• Typical symptoms: can't hang or align the microwave, unit sags/tilts, rear hooks won't engage, plate is bent or corroded

• Disconnect power before beginning
• Use two people to remove/hang the microwave for safety
• Locate wall studs, level the plate, and fasten per your model's installation instructions with the correct hardware
• The microwave's rear tabs fully engage the plate before final tightening

This support is a factory mounting piece that secures and aligns its mating component inside the appliance. Replacing a worn or broken support restores proper fit, stability, and smooth operation of the associated assembly.

• Provides structural support and accurate positioning for the designated part
• Helps prevent sagging, looseness, and vibration
• Maintains alignment so components latch/seat correctly
• Typical failure signs: cracked or missing support, rattling, misalignment, or parts that won't stay in place

• Disconnect power before servicing; also shut off the water supply
• Note the original orientation; transfer any screws, clips, or spacers from the old support
• Install without overtightening to avoid damage; secure fit of the supported component after installation

This factory support stabilizes and positions its mating assembly so it stays secure and aligned during use. Replacing a worn or broken support helps restore proper fit and prevents looseness or shifting that can affect performance. What it does

• Provides structural support and correct positioning for the related assembly
• Helps prevent wobble, sagging, rattling, or misalignment
• Typical failure signs: visible cracks, broken/missing tabs, or a loose fit
• Can help resolve components not staying in place or moving unexpectedly

• 1 support

• Disconnect power to the appliance before servicing
• Access the support location and note the original orientation
• Transfer and reuse any original mounting hardware your model uses
• Seat the new support fully and verify a secure fit before restoring power

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

• 1 light housing

• 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

This is the appliance's main power cord. It delivers household electricity to the unit so it can operate safely and reliably.

• Supplies AC power from the wall outlet to the appliance's internal wiring
• A damaged or failed cord can cause no power, intermittent power, or tripped breakers
• Replacing a worn cord can restore consistent power and improve safety

• Unplug the appliance and turn off power at the breaker before service
• Route and secure the cord to prevent pinching or abrasion

This replacement screw secures appliance panels, brackets, or internal components to keep them tight and aligned. Replace a missing, stripped, or damaged fastener to restore a solid, rattle-free fit and reliable operation.

• Fastens parts to the cabinet or frame to prevent movement
• Replaces missing, stripped, or corroded hardware that can cause looseness, vibration, or noise
• Helps correct gaps or misalignment after service
• Maintains proper support for covers, trims, or brackets

• Disconnect power; shut off gas/water if applicable before servicing
• Match screw length and location to the original position
• Start threads by hand to avoid cross-threading; tighten snugly without overtightening
• Repair or replace damaged clips/inserts before installing the new screw

This magnetron generates the microwave energy that cooks food inside a microwave oven, restoring heating performance when the original tube fails. Replaces a failed magnetron to return proper cooking and reheating. What it does:

• Converts electrical power into microwave energy used to heat food.
• Restores normal cooking when the oven no longer heats or has weak heating.
• Resolves loud humming, sparking, or intermittent heating caused by a failing tube.
• Works with the oven's high-voltage circuitry and waveguide to distribute energy into the cavity.

• Disconnect power and unplug the appliance before service; high-voltage components can retain a dangerous charge.
• Discharge the high-voltage capacitor before touching the magnetron or associated wiring.
• Inspect and replace any damaged waveguide covers or mounting hardware for safe operation.

This capacitor stores and releases electrical energy to help an AC motor start and run smoothly. Replacing a weak or failed capacitor can restore reliable motor operation and reduce humming, no-start, or stall conditions.

• Provides the phase shift and starting torque an induction motor needs to start
• Helps the motor reach and maintain proper speed under load
• Common symptoms of a failing capacitor: motor hums but won't start, intermittent starts, slow or stalled rotation, or frequent thermal trips
• Visible clues may include a swollen case or leaking residue

• Disconnect power to the appliance before servicing; verify no voltage is present
• Capacitors can retain a charge—discharge safely before handling
• Note wire positions; move leads to the new capacitor one at a time and ensure snug terminal fit
• Reuse the original bracket/clip if applicable and secure the capacitor to prevent vibration

A replacement mounting screw used to secure appliance panels and components. This OEM-style screw helps restore proper fit and reduces rattling or loose parts for a finished, secure assembly. What it does:

• Fastens control panels, brackets, or interior trim to the appliance frame
• Restores proper alignment when an original screw is missing or stripped
• Stops rattling or vibration caused by loose fasteners
• Matches OEM fit for reliable fastening when the correct screw is used

• Turn power off at the breaker before servicing electrical appliances
• Match screw length, head style and thread to the removed fastener before installation
• Use the correct screwdriver or bit to avoid cam-out or head damage
• Do not overtighten; snug until secure to avoid stripping threads or cracking components

Replacement interlock spring that provides tension for the appliance door latch so the door closes and the interlock switch can engage for normal operation. Restores reliable door engagement and latch return in compatible Whirlpool appliances. What it does:

• Provides tension to the door latch/interlock assembly so the door stays securely closed during use.
• Ensures the latch returns to the closed position and allows the interlock switch to complete the appliance's safety circuit.
• Helps resolve symptoms such as a loose or non-returning latch, door that won't stay closed, or cycles that stop because the door won't engage.
• Works as a direct replacement for the listed interlock spring in compatible Whirlpool assemblies.

• Disconnect power to the appliance before servicing to avoid electric shock or injury.
• Basic hand tools are typically required; panels or the door may need partial disassembly—refer to the model's service guide.
• Inspect the latch, striker, and interlock switch for wear or damage and replace if needed; improper installation can prevent correct engagement.

This is a replacement screw used to secure appliance parts and panels. It restores proper fastening where the original screw is missing, stripped, or corroded. What it does:

• Secures panels, brackets, or components in place to maintain appliance alignment
• Replaces lost, damaged, or rusted fasteners for a reliable hold
• Helps prevent rattling or movement caused by a missing screw
• Works wherever the OEM screw specification and fit match

• One screw

• Use the matching screwdriver or driver bit; avoid overtightening to prevent stripping
• Disconnect power and follow appliance safety precautions before servicing

*** Note: This glass tray has 3 partial-circles to engage the coupler. In some cases, the factory used a tray that has 3 triangles. For that glass tray use part# W11367904. ***

The Cooking Tray is an OEM part for Whirlpool microwaves. This glass tray sits on the turntable support and rotates to ensure that food heats evenly throughout the cooking cycle. It is designed to fit securely within the microwave, providing a stable platform for various dishes and containers.

Over time, the cooking tray can become damaged due to regular use, drops, or exposure to extreme temperatures. If the tray is cracked or broken, it can lead to uneven cooking and potential safety hazards.

Symptoms of a bad cooking tray include:

• Visible cracks or chips on the glass surface
• The tray not rotating properly
• Uneven heating or cooking of food
• The tray wobbling or not fitting securely on the turntable support

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

The Vent Grille is an OEM part for Whirlpool microwaves. It is designed to cover the vent opening, protecting the internal components of the microwave while allowing proper airflow. The grille measures approximately 30" x 3.5".

Causes of a bad vent grille can include accumulation of grease and debris, physical damage from impacts, or warping due to heat exposure. A compromised vent grille can hinder airflow, leading to potential overheating and reduced performance of the microwave.

Symptoms of a bad vent grille include:

• Visible cracks or breaks in the grille
• Restricted airflow
• The microwave overheating or shutting off unexpectedly
• Unusual noises coming from the vent area

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

This is a genuine replacement screw used to fasten appliance panels, trim, and components. It restores secure attachment and helps eliminate rattles or loose parts for safe, reliable operation. What it does:

• Secures panels, brackets, trim pieces, or internal components
• Stops vibration-related noise caused by loose or missing fasteners
• Restores proper alignment and fit of assembled parts
• Provides the correct thread and length for the intended factory location

• One screw

• Use the correct screwdriver or bit to avoid stripping the head
• Hand-start the screw to ensure correct thread engagement before final tightening
• Tighten until snug; avoid over-tightening which can strip threads or crack plastic
• Disconnect power to the appliance before working in areas near electrical components