Mdb8959 Parts

Size: 1/4 inch hex head, 10-12 x 1/2 inch.

Replace a missing or cracked rinse aid cap to stop leaks and restore proper dispensing. This dishwasher dispenser cap seals the rinse aid reservoir so dishes dry better and avoid spots by delivering rinse aid consistently.

• Seals the rinse aid reservoir to prevent leaks and evaporation
• Helps ensure correct rinse aid dosing during wash cycles
• Replaces worn, stripped, or missing caps that won't tighten
• Common symptoms: pooled rinse aid in the door or tub, visible cap damage, dishes left with spots due to no rinse aid

• For safety, disconnect power to the dishwasher before servicing
• Open the door and remove the old cap by turning counterclockwise
• Clean the dispenser opening; seat the new cap and turn clockwise until snug—do not overtighten
• Refill rinse aid, wipe up any spills, and run a short cycle to check for leaks

This dishwasher sump and seal forms the watertight basin at the bottom of the tub and seats the wash and drain pumps. Replace a cracked sump or worn seal to stop leaks and restore reliable wash performance. What it does:

• Collects and channels wash water to the circulation and drain pumps
• Maintains a watertight seal between the tub and the sump opening
• Helps maintain proper wash pressure and flow
• Common failure signs: water leaking from the base, visible cracks or warping, recurring moisture beneath the unit, poor cleaning results

• One sump assembly with seal

• Disconnect power and shut off the water supply before servicing; use towels to catch residual water
• Remove the toe panel and slide the dishwasher out for access to the sump area
• Detach hoses/wiring as needed; release locking tabs and lift out the old sump
• Seat the new seal evenly, transfer any reusable hardware/components from the original sump, and test for leaks after reassembly

This replacement capacitor stores and releases energy to give an AC motor the phase shift it needs to start and run smoothly. Installing a fresh capacitor can help when a motor hums, struggles to start, or cycles off. What it does

• Provides the phase shift/starting torque an AC motor needs and stabilizes operation
• Helps reduce repeated start attempts and nuisance thermal trips
• Common symptoms of a weak capacitor: motor hums, won't start, or stops shortly after starting
• Physical signs of failure can include a swollen, leaking, or cracked casing

• 1 capacitor

• Disconnect power to the appliance before servicing
• Safely discharge the capacitor with an appropriate resistor/discharge tool before handling
• Mark/photograph wire locations and transfer connections one-for-one to the new part
• Reinstall in the original bracket or mounting location; keep wiring secure and clear of moving parts

Color: light grey. It measures about 2-1/2 inches high by 2 inches deep.

This rear support wheel replaces a worn roller that helps a sliding drawer or rack glide smoothly and stay aligned. Restores easy, even movement and reduces dragging, scraping, or tilting during everyday use.

• Supports the rear of a sliding assembly on its track
• Provides smooth rolling action and helps maintain alignment
• Helps prevent binding, popping off the track, or uneven travel
• Replace if the wheel is cracked, flattened, missing, or if movement is noisy or difficult

• Disconnect power before servicing; allow the appliance to cool
• Remove the sliding assembly to access the wheel area
• Transfer or reinstall any axle/retainer from the original wheel as needed
• Verify smooth travel and proper alignment after replacement

Left side. For right side use part number WPW10251051.

Includes vinyl rack repair touch up paint and tine tip covers. Color: Grey

12 Ft in length

The Control Panel is an OEM component specifically designed for Whirlpool dishwashers. It houses the touch controls, digital displays, and electronic components that operate appliance functions and cycles.

Causes of a bad control panel can include electrical faults or failures in buttons, boards, or displays due to extended use. Liquid damage, cracks, or other impact injuries may also necessitate replacement.  

Symptoms of a bad control panel includes:

• Non-responsive or uncalibrated buttons  
• Inaccurate temperature readings or cycle statuses
• The inability to start or stop cycles
• Flashing error codes  

Color: Black

This genuine OEM replacement panel helps restore reliability to your Whirlpool dishwasher. It is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.
 

This cover screw secures an appliance cover or access panel to the cabinet, protecting internal components and reducing vibration. Replace missing, stripped, or corroded screws to keep panels tight and the unit safe and quiet.

• Fastens a cover or access panel to the appliance chassis
• Maintains proper panel alignment and enclosure integrity
• Helps eliminate rattles or buzzing from loose panels
• Typical symptoms: loose/misaligned cover, missing screw, vibration noise

• Disconnect power; for gas/water appliances, shut off supplies before service
• Wear cut-resistant gloves—sheet-metal edges can be sharp
• Align the cover and start the screw by hand to avoid cross-threading
• Tighten snugly; do not overtighten into plastic or thin metal

Includes two screws, two clamps, and undercounter mounting brackets.

Color: White

This insulation pad installs in the factory location to isolate and cushion components or panels. It helps reduce vibration and limit unwanted heat transfer, supporting quieter operation and proper performance where the original pad was installed.

• Provides a thermal and acoustic barrier between parts or panels
• Helps minimize vibration and rattling noises
• Restores proper spacing/cushioning when the original pad is missing or deteriorated
• Replace if the pad is brittle, compressed, contaminated, or falling off
• Common signs include increased noise or rattles and localized hot spots or condensation

• Disconnect power (and gas/water, if applicable) before servicing
• Allow hot or cold surfaces to return to a safe temperature
• Note the original pad's location/orientation; remove old pad and clean the surface
• Install the new pad in the same spot without over-compressing; secure per the original method and verify clearances

This drain adapter assembly links the dishwasher's drain outlet to the drain hose leading to a sink drain or garbage disposer, creating a secure, watertight discharge path. Replacing a damaged adapter helps stop leaks and supports proper draining.

• Adapts and seals the outlet from the sump/pump to the drain hose or disposer
• Helps maintain proper discharge flow during the drain cycle
• Common symptoms include water under the unit and standing water left in the tub

• Disconnect power at the breaker and shut off water; bail out any standing water
• Access the drain outlet and place a towel or pan to catch residual water
• Move the hose clamp, remove the old adapter, and seat the new adapter squarely
• Reattach the hose, secure the clamp, and run a brief test cycle to check for leaks

Color: Grey (If your original dispenser and cap was blue, the factory has changed it to grey.)