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Mdb7851aws 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/Water Inlet Seal (Dishwasher)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002150

This seal sits at the dishwasher's air/water inlet, creating a tight barrier where the inlet assembly meets the tub or door. Replacing a worn seal helps stop nuisance leaks and supports proper fill and venting performance. What it does

  • Forms a watertight seal at the air/water inlet connection
  • Helps prevent drips or seepage during fill and wash
  • Supports correct venting to keep moisture contained inside the tub
  • Common failure signs include water on the floor near the unit, dampness around the inlet/vent area, or a cracked, flattened, or brittle seal
What's included
  • One air/water inlet seal
Install notes
  • Disconnect power and shut off water before servicing
  • Access method varies by model; remove the inlet/vent cover or side panel to reach the seal
  • Clean mating surfaces; seat the new seal evenly without distortion
  • Reassemble and run a brief fill/wash to check for leaks

Do-It-Yourself Stories from Customers like You Dishwasher leaked every time it ran   John S. • Morgan , NJ • January 16, 2018

Replaced the seal at the Air/Water inlet and also replaced the drain hose. Drain hose had a worn spot due to vibration rubbing on the floor Read more

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$9.77
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Pump Gasket (With Silicone)
Genuine Whirlpool part
By: Whirlpool
Part Number: 12002361

Replacement pump gasket with silicone sealing material that restores a watertight seal between the pump and housing. Helps stop leaks at the pump area and prevents water pooling under the appliance.

  • Seals the pump to the housing to help prevent water leaks and drips.
  • Common repair for visible water under the appliance or leaks coming from the pump area.
  • Silicone sealing material provides a flexible, water-tight interface that conforms to the pump housing.
  • Designed to replace the factory pump gasket for a direct fit and proper sealing.
What's included: One pump gasket. Install notes:
  • Disconnect power and water supply before beginning any repair.
  • Remove the pump assembly to access and replace the gasket.
  • Clean and dry mating surfaces before installing the new gasket; seat evenly to ensure a full seal.

Do-It-Yourself Stories from Customers like You Gasket went bad started leaving black on dishes from gasket   David D. • Strongsville , OH • December 01, 2015

Replaced the gasket. Read more

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$58.59
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Silverware Basket (Utensil Basket)
Genuine Whirlpool part
By: Whirlpool
Part Number: W11175758

This replacement silverware basket holds forks, knives and spoons in the dishwasher lower rack so utensils stay upright and separate for better cleaning and easier unloading. It's a direct-fit interior basket designed to restore secure utensil loading. What it does:

  • Keeps silverware and small utensils contained so pieces don't fall through or block the spray arms
  • Separates items to improve water flow and cleaning coverage
  • Prevents loose utensils from banging and potentially damaging dishes
  • Replaces cracked, broken, or missing baskets that allow utensils to shift during the cycle
What's included: One silverware/utensil basket Install notes:
  • Drop into the lower rack — no tools required for typical swap-out
  • Position basket so it sits flat and does not interfere with rack movement or spray arm rotation
  • Avoid overloading; place sharp utensils point-down or bundle separately to reduce hazard when unloading
  • For appliance repairs beyond simple replacement, disconnect power and water before servicing

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$54.42
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Control Board Housing (Base)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002576

This control board housing secures and protects the washer's electronic control board, keeping circuitry stable and shielded from moisture and debris for reliable operation. It fits into the console area and supports proper control panel alignment. What it does:

  • Holds and protects the electronic control board inside the console from impact, dust and moisture.
  • Keeps the control board properly positioned for reliable electrical connections.
  • Helps prevent control panel wobble or misalignment that can cause button or dial issues.
  • Commonly replaced when housing is cracked, broken mounting tabs fail, or board access is needed.
What's included:
  • 1 control board housing
Install notes:
  • Disconnect power and water to the appliance before beginning any repair.
  • Handle the control board and housing carefully to avoid damage to connectors or circuit components.
  • Use appropriate tools to remove console components; replace damaged mounting tabs and secure all fasteners.
  • Discharge any capacitors and follow the board manufacturer's ESD/safety recommendations.

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$41.95
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Upper Wash Arm (Dark)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99003070

This upper wash arm directs rotating spray to the dishwasher's top rack to help improve cleaning coverage and reduce food/residue on upper-rack dishes. Fits as the rotating upper spray arm assembly for compatible dishwashers. What it does:

  • Rotates and sprays water across the upper rack to help remove stuck-on food and rinse dishes.
  • Helps correct weak or uneven spray patterns from the top rack.
  • Can reduce spotting and areas that remain soiled when the upper arm is damaged or clogged.
  • Replaces a worn, cracked, or clogged upper spray arm to restore proper spray action.
What's included: Includes: 1 upper wash arm (dark) Install notes:
  • Always disconnect power to the dishwasher and turn off the water supply before servicing.
  • Remove the upper rack to access the arm; unclip or unscrew the old arm and install the replacement until it seats/threads securely.
  • Clear any debris from the mounting area and ensure the arm spins freely before running a test cycle.
  • Run a short rinse or quick cycle to verify correct spray pattern and fit.

Do-It-Yourself Stories from Customers like You Dish washer was not rinsing soap off dishes.   John L. • Wilton , CA • March 19, 2018

I replaced all 3 washer arms Read more

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$51.27
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Bracket, Manifold Mounting (Mounting Bracket)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002643

This manifold mounting bracket secures the gas manifold assembly to the appliance frame, keeping fuel lines and related components aligned for reliable operation. It's a direct-fit replacement that restores proper manifold support. What it does:

  • Holds the gas manifold in the correct position to prevent strain on connections and lines
  • Helps maintain stable alignment of valves and supply tubing to reduce leaks and intermittent flow
  • Addresses symptoms like a loose or rattling manifold assembly or visible bracket damage
  • Restores proper mounting after impact or corrosion-related bracket failure
What's included:
  • One manifold mounting bracket
Install notes:
  • Install only with the appliance powered off and gas supply completely shut; follow local codes
  • Match bracket orientation to the original and secure with manufacturer-specified fasteners
  • Inspect nearby tubing, fittings and valve mounts for damage when replacing the bracket

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$10.95
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Support
Genuine Whirlpool part
By: Whirlpool
Part Number: 6-916824

 

Do-It-Yourself Stories from Customers like You Lower wash arm rotating slowly   Ron G. • Wharton , TX • January 16, 2017

Found that the lower wash arm was rotating slowly due to Hard Water build up. Prior to replacement ran an empty load using CLR in-order to breakdown the Lime and Calcium build up. Once that was completed and rinsed (several cycles) completely, I was able to install the parts in less than 5mins. and now the Dishwasher is like new, being a 10yr. old unit. Ron Read more

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$33.95
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Clip, Upper Wash Manifold
Genuine Whirlpool part
By: Whirlpool
Part Number: 99002945

Back

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$15.60
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Lever, Motor Mount
Genuine Whirlpool part
By: Whirlpool
Part Number: 99003056

 

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$7.95
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Clip, Upr Wash Manif
Genuine Whirlpool part
By: Whirlpool
Part Number: 99003071

 

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$14.95
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Lever, Adjuster
Genuine Whirlpool part
By: Whirlpool
Part Number: 99003178

Color: Blue

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$45.49
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Housing
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10205539

 

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$79.44
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Wire Harness
Genuine Whirlpool part
By: Whirlpool
Part Number: W10237912

 

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$126.33
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Shoulder Bolt, Cable
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99003687

 

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$5.46
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Panel- Toe
Genuine Whirlpool part
By: Whirlpool
Part Number: 6-916892

 

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$22.23
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Clip, Thermostat
Genuine Samsung part
By: Samsung
Part Number: 99001008

 

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$6.31

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