Parts for Roper RT21LMXKQ00: 04 - Unit Parts

Size: 8 x 1/2 ab.

The Defrost Heater is an OEM replacement part for Whirlpool French door refrigerators. It is an electric heating element strategically placed within the refrigerator compartment and freezer liners. This component aids in preventing excessive moisture buildup from condensation formed during normal operation. 

Causes for heater failure include standard component degradation from prolonged use. Exposure to moisture accumulating over time can damage wiring insulation or short-circuit coil filaments as well.

Symptoms of an inadequate defrost heater involve:

• Frost buildup interfering with door seals and interior shelving
• Promotion of mold/mildew growth from sustained dampness
• Food spoilage risks due to the inability to regulate proper humidity 

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

The Screw is an OEM part for Whirlpool refrigerators. This screw secures the refrigerator door hinge in place, allowing the door operates smoothly and seals properly. 

Over time, screws can become loose or go missing during repairs or adjustments, which can lead to a misaligned door, compromised sealing, and increased energy consumption. 

Symptoms of a bad screw include:

• The refrigerator door seems misaligned or does not close properly.
• Increased effort needed to open or close the door.
• Unusual gaps around the door seal when closed.
• The door might squeak or make other noises during operation.

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

The Defrost Bimetal is an OEM part for Whirlpool refrigerators. It acts as a safety thermostat that monitors and controls the temperature during the defrost cycle. This component ensures that the defrost heater turns off when the evaporator coil reaches a specific temperature, preventing overheating and potential damage.

Causes of failure may include a malfunction due to wear and tear over time, electrical failure, or damage from moisture and ice.  

Symptoms of a bad Defrost Bimetal include:

• The refrigerator is constantly running without cycling off
• Frost buildup on the evaporator coils, leading to reduced cooling efficiency
• The refrigerator or freezer compartment is too warm
• Unusual fluctuations in refrigerator temperature

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

This terminal block cover protects the appliance's electrical connection area from accidental contact and debris, helping reduce the risk of shorts and corrosion while keeping wiring secure and contained. What it does:

• Covers and shields the power terminal/block where the power cord connects
• Helps prevent accidental contact with live terminals and reduces short risk
• Keeps out dust, lint and debris that can cause corrosion or arcing
• Useful when the original cover is cracked, missing or showing burn marks

• Always disconnect power (unplug or switch off breaker) before servicing electrical components
• Typically installs over the terminal block and secures with the existing fastener(s); inspect mounting hardware for wear
• Replace if cracked, melted or if terminals are exposed; ensure cover seats fully before restoring power

The Relay and Overload Kit is an OEM replacement part for Whirlpool refrigerators. It is an essential component of the refrigerator's electrical control system, responsible for powering components and protecting circuits from overload. 

Causes of a bad relay and overload kit include circuit malfunctions, failed or worn-out components, or improper installation. 

Symptoms of a bad relay and overload kit are:

• Refrigerator not cooling or icing 
• Components like lights or fans not working
• Buzzing or humming noises from the electrical control area
• Repeated blown fuses 

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

This compressor mounting grommet kit replaces worn or damaged rubber mounts that secure the compressor and reduce vibration. Restoring proper mounts helps cut down on compressor noise and prevents movement-related wear. What it does:

• Cushions and isolates the compressor to reduce vibration and rattling noise
• Keeps the compressor secured to its mounting bracket during operation
• Helps prevent stress and wear on mounting hardware and tubing
• Addresses symptoms like excessive vibration, banging, or unusual compressor noise

• Disconnect power to the appliance before beginning any repairs
• Support the compressor while removing and installing mounts to prevent strain or shifting
• Use appropriate hand tools and avoid over-tightening fasteners that can compress or damage grommets

This small rubber grommet cushions and supports a fan motor, helping reduce vibration and noise while the appliance is running. It fits into the motor bracket to provide a snug, insulated mounting point.

• Isolates fan motor vibration to cut rattling or buzzing
• Helps keep the motor aligned in its bracket
• Can wear, crack, or compress over time, causing vibration or noise
• Replacing a deteriorated grommet restores smooth, quieter operation

• Disconnect power before servicing
• Access the fan assembly and support the motor to relieve strain
• Note grommet orientation; transfer any sleeves or hardware as found
• Seat the new grommet fully in the bracket before remounting the motor

Kit includes relay, overlaod, cover and instructions.Note Due to manufacturer changes part received may appear different than as shown in photo.

Size: 8 x 1/2 ab.

The Roller is an OEM part for Whirlpool refrigerators. It is designed to facilitate the smooth movement of your refrigerator, making it easier to position and clean underneath the appliance. The roller supports the weight of the refrigerator and allows for easy adjustments in placement.

Causes of a bad fridge roller can include wear and tear from frequent movement, exposure to heavy loads that can damage the roller, or accumulation of dirt and debris that can impede its function. When a roller is damaged, it can affect the stability and mobility of the refrigerator.

Symptoms of a bad Roller include:

• Difficulty moving the refrigerator
• Unusual noises when the refrigerator is moved
• Uneven leveling of the refrigerator
• The refrigerator not staying in place

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

The Axle is an OEM part for Whirlpool refrigerators. This axle allows it to be easily repositioned or moved for cleaning and maintenance. It supports the rollers that enable the refrigerator to glide across the floor.

Common causes of a bad axle include prolonged use, excessive weight, or impact damage, which can lead to the axle bending or breaking.

Symptoms of a bad refrigerator roller axle include:

• Difficulty moving the refrigerator
• Uneven or wobbling movement
• Scratches or damage to the floor
• The refrigerator not staying level

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

This compressor mounting grommet kit replaces worn or damaged rubber mounts that secure the compressor and reduce vibration. Restoring proper mounts helps cut down on compressor noise and prevents movement-related wear. What it does:

• Cushions and isolates the compressor to reduce vibration and rattling noise
• Keeps the compressor secured to its mounting bracket during operation
• Helps prevent stress and wear on mounting hardware and tubing
• Addresses symptoms like excessive vibration, banging, or unusual compressor noise

• Disconnect power to the appliance before beginning any repairs
• Support the compressor while removing and installing mounts to prevent strain or shifting
• Use appropriate hand tools and avoid over-tightening fasteners that can compress or damage grommets

This kit is used to mount evaporator trays on compressors.

This refrigerator compressor circulates refrigerant to cool the appliance and restore proper temperatures. Replaces a failed compressor to help the refrigerator maintain set temperatures when the cooling system is compromised. What it does:

• Pumps refrigerant through the sealed cooling system to enable heat exchange and cooling.
• Runs the refrigeration cycle so the refrigerator and freezer can reach and hold target temperatures.
• Common symptom linkage: fridge not cooling, compressor humming or not running, or frequent cycling.
• Can cause system pressure issues if damaged or leaking.

• One compressor (single sealed unit)

• Power should be disconnected before beginning work and the refrigerant must be recovered per regulations.
• System evacuation, leak testing, and proper recharge with the correct refrigerant are necessary after replacement.
• May require replacement of mounting hardware, start device, or filter-drier—verify system condition during service.

Capacitor supplies a short burst of stored electrical energy to help the appliance motor start and run efficiently. Replacing a failing capacitor can restore reliable motor startup and reduce humming or intermittent operation. What it does

• Provides the electrical boost motors need to start and maintain proper speed.
• A failing capacitor commonly causes motors to hum, struggle to start, run slowly, or stop unexpectedly.
• Used on motors and fans that require a start/run assist; replacing a bad capacitor often resolves startup and intermittent operation issues.

• Always disconnect power to the appliance before accessing electrical components.
• Discharge the capacitor safely (use insulated tools and gloves) before touching terminals — capacitors can hold a dangerous charge.
• Photograph or label wiring and terminal locations before removal so replacements reconnect exactly the same way.

The Run Capacitor is an OEM part for Whirlpool appliances, designed to provide the necessary electrical charge to start and run the compressor motor. This part attaches to the compressor to aids in maintaining a consistent motor speed and ensuring smooth operation. The run capacitor plays a crucial role in the appliance's electrical system, storing and releasing energy as needed to power the motor.

Causes of a bad Run Capacitor include electrical surges, wear and tear over time, or overheating, which can lead to a failure in providing the necessary start-up energy or maintaining motor speed.

Symptoms of a bad Run Capacitor include:

• The appliance does not start.
• The motor shuts off shortly after starting.
• The appliance is humming but not running.
• Increased energy consumption.

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

This air baffle bracket assembly helps route airflow inside the appliance to maintain proper cooling and protect the fan area. It restores correct air channeling for more consistent temperatures and quieter operation. What it does:

• Directs and channels airflow through the evaporator/fan area to support efficient cooling
• Holds or positions the fan assembly and related ducting for correct air pathway
• Prevents air recirculation and reduces hotspots or uneven cooling
• Can help address abnormal fan noise or rattling when damaged or loose

• Disconnect power to the appliance before beginning any work
• Remove exterior or interior access panels to reach the fan area; keep fasteners organized
• Handle plastic tabs and clips gently to avoid breakage; replace damaged clips as needed
• After installation, verify the fan spins freely and that all panels are reattached securely

The condenser fan motor is an OEM part for Whirlpool refrigerators. It plays a vital role in circulating refrigerant through the condenser coils, facilitating heat exchange and maintaining the refrigerator's cooling efficiency.

Over time, the motor-condenser can wear out or fail due to electrical issues, mechanical wear, or blockages in the condenser system. A malfunctioning motor can compromise the refrigerator's cooling performance, leading to temperature fluctuations and increased energy consumption.

Symptoms of a bad Motor-Condenser include:

• The refrigerator not cooling properly
• Unusual noises coming from the back of the refrigerator
• The compressor running continuously
• Increased energy bills due to inefficient operation
• Overheating of the refrigerator

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

The Nut is an OEM replacement part for Whirlpool refrigerators. This small yet essential component is used to secure various parts of the refrigerator, such as shelves, panels, or brackets, ensuring stability and proper alignment. Its durable design ensures reliable performance in the demanding environment of a refrigerator.

Causes of a bad or missing Nut can include wear over time, accidental stripping of threads, or loss during maintenance or repairs. A damaged or missing nut can lead to loose components and reduced functionality.

Symptoms of a bad or missing Nut include:

• Loose or wobbly shelves, brackets, or panels
• Difficulty keeping refrigerator components securely in place
• Rattling or unusual noises during operation

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

This factory fastener is a #8-18 x 5/8-inch Type AB screw designed for appliance assembly. It secures panels and components to restore a tight, rattle-free fit and dependable alignment. What it does:

• Thread-forming Type AB design engages thin metal or plastic components
• Secures panels, brackets, trim, or covers to reduce looseness and vibration
• Replaces missing, stripped, or corroded fasteners
• Helps maintain alignment for proper operation and reduced noise

• One screw

• Disconnect power before servicing; shut off water supply if working near water lines
• Use the correct driver for the screw head; start by hand to avoid cross-threading
• Tighten until snug—do not overtighten to prevent stripping or cracking plastic
• Repair damaged holes or replace worn clips/inserts before installing the new screw

• Size: #8-18 x 5/8 in (length 0.625 in)
• Thread type: Type AB, thread-forming

Screw: 8-16 x 3/8 inch.

This genuine replacement screw secures appliance panels and components, restoring proper fit and stopping movement. Use it when a missing or damaged fastener causes loose trim or rattling. What it does

• Secures panels, brackets, and small assemblies to restore proper fit
• Helps eliminate rattling, vibration, or misaligned trim caused by a missing or stripped screw
• Replaces lost or damaged fasteners during maintenance or part replacement
• Matches OEM fit for reliable fastening where specified in diagrams

• Use the matching screw location shown in the appliance diagram; do not force or overtighten
• Use the correct screwdriver or bit to avoid stripping the head
• Disconnect power and follow appliance safety procedures before accessing internal components
• If threads are damaged, replace with the correct OEM fastener rather than reusing a compromised hole

Size: 1/2 inch.

Size: 5/8 inch.

Size: 3/4 inch.

Size: 1/4 inch.

Size: 5/16 inch.

Size: 3/8 inch.

Size: 3/16 inch.