Parts for Roper RT18BKXKQ03: 04 - Unit Parts

This formed condenser assembly moves heat away from the refrigeration system to help your appliance maintain proper cooling. A direct-fit replacement when the original condenser is bent, corroded, or no longer transferring heat effectively. What it does:

• Provides the metal pathway for refrigerant to release heat from the system
• Helps maintain proper compressor and cooling performance
• Replace if coils are dented, crushed, corroded, or blocking airflow
• Address symptoms like higher-than-normal internal temperatures or increased compressor run time

• Disconnect power to the appliance before starting any service
• Handle edges carefully; condenser fins and tubing can be sharp and easily damaged
• If refrigerant lines must be opened or brazed, perform the service
• Fit and mounting hardware before installation; follow OEM diagram for proper routing

The Defrost Heater is an OEM part for Whirlpool refrigerators. This heater turns on during the defrost cycle to melt the frost on the evaporator coils. If you need the defrost thermostat order WP4387490

Causes may include cracked heater elements reducing heat output or open circuit damage limiting functionality over time. 

Symptoms of a faulty heater involve:

• Periodic refrigerator odors
• Prolonged defrost cycles or remaining ice
• Frost and ice buildup beyond normal amounts

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

Size: 8-18 x 1/2 inch.

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

This overload protector is a thermal motor protector that cuts power if the dryer motor overheats, helping prevent motor damage and unsafe operation. Replace a failed unit to restore the motor's built-in overheating protection. What it does:

• Senses excessive motor temperature and interrupts motor power to prevent damage.
• Common symptom: dryer may not start or the motor hums but won't turn when the overload has failed.
• Helps stop repeated motor overheating and can prevent associated electrical faults.
• Works as the motor's thermal safety device; must be replaced if open or damaged.

• Disconnect power to the appliance before servicing to avoid shock or injury.
• Transfer wiring and mounting exactly as removed; do not bypass the protector.
• Inspect motor and blower for obstructions or causes of overheating before reassembly.

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

This grommet is a small protective seal used where a hose, tube, wire, or component passes through or mounts to the appliance cabinet. It cushions the connection and helps prevent leaks, vibration, and wear for reliable operation.

• Provides a snug barrier between parts and metal openings to protect hoses, tubes, and wiring
• Helps seal against moisture to reduce seepage
• Dampens vibration and rattling noises
• Replace if cracked, hardened, missing, or no longer stays seated; symptoms may include drips at a pass-through, buzzing/rattling, or a loose fit

• Disconnect power; shut off water supply if applicable
• Access the grommet location and note orientation/routing
• Remove the old grommet and clean the opening
• Press the new grommet fully into place; reassemble and test for leaks/noise

Compressor relay and overload.

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.

A small metal retaining clip that secures a bi-metal thermostat or temperature sensor in place, helping maintain proper contact and accurate temperature sensing for reliable appliance operation. Simple, durable replacement part. What it does

• Holds a bi-metal thermostat or temperature sensor firmly against its mounting point or probe.
• Maintains consistent contact to support accurate temperature sensing and control.
• Can help stop intermittent temperature-related issues caused by a loose or damaged clip.
• Designed for direct replacement where a spring-style or formed metal retainer is required.

• One bi-metal retaining clip (single clip).

• Disconnect power to the appliance before attempting any repair.
• Removal/installation typically requires small pliers or a flat screwdriver; avoid excessive force to prevent damage.
• Verify clip orientation and that the sensor/thermostat is seated fully before securing.

The Compressor Start Relay is an OEM part for Whirlpool refrigerators. This part provides the necessary power boost to start the compressor.

Causes of a bad start relay can include electrical issues, wear and tear from regular use, or damage from power surges or overheating.

Symptoms of a bad compressor start relay include:

• The refrigerator not cooling properly
• The compressor not starting or frequently shutting off
• Clicking noises coming from the compressor area
• The refrigerator running but not reaching the desired temperature
• Increased energy consumption

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

This retaining clip secures trim, panels or small assemblies to keep parts aligned and prevent rattling. It's a simple replacement that restores a snug, stable fit where the original clip has broken or gone missing. What it does:

• Holds plastic or metal trim and panels in place to prevent gaps and movement
• Restores proper alignment and reduces vibration or rattling noises
• Keeps assembled components from shifting during normal use
• Useful when a damaged or missing clip causes loose or sagging parts

• One retaining clip

• Disconnect power and/or water to the appliance before beginning any repair
• Use needle-nose pliers or a flat screwdriver to remove the old clip and snap the replacement into place
• Verify the clip is fully seated and the panel/trim is secure before returning the appliance to service
• If the original clip required additional fasteners, retain and reuse them as needed

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 wire assembly connects the capacitor to the appliance's motor or control, restoring a secure electrical path for reliable start/run operation. Replaces a damaged or worn harness to help resolve starting and intermittent power issues. What it does:

• Provides insulated wiring and terminals to link the capacitor to the motor or control
• Ensures a secure electrical connection for proper start/run signaling
• Can resolve symptoms such as failure to start, humming or intermittent motor starting
• Prevents shorts or arcing from frayed or damaged wiring when functioning correctly

• Always disconnect power at the breaker or unplug the appliance before servicing
• Capacitors can hold a dangerous charge — have the capacitor safely discharged before disconnecting wires
• Match connectors and routing to the original harness; secure wires away from moving parts and heat sources

Size: 1/2 inch.

Size: 5/8 inch.

Size: 3/4 inch.

Size: 3/16 inch.

Size: 1/4 inch.

Size: 5/16 inch.

Size: 3/8 inch.