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Mdb-3 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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Ball - Check
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3369178

 

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Knob - Timer (Control Knob)
Genuine Whirlpool part
By: Whirlpool
Part Number: 3379290

This replacement timer control knob lets you set and turn the appliance's timer with a clear grip and click-action feedback. It restores a worn or missing knob so you can reliably select time settings and operate the timer control. What it does:

  • Provides a secure grip for turning the timer control and selecting time settings
  • Replaces cracked, stripped, or missing timer knobs that are hard to turn
  • Restores tactile click and positional indexing for accurate control
  • Helps eliminate slipping or wandering of the timer pointer during use
What's included: One replacement timer control knob as shown Install notes:
  • Install on the timer shaft by aligning the hub and pressing firmly until seated
  • If knob is difficult to remove, use a flat tool gently; avoid damaging surrounding trim
  • Disconnect power to the appliance before servicing timer components
  • If the timer mechanism itself is damaged or nonfunctional, replace the complete timer assembly

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Hose, Collector (Assembly, 1-Pack)
Genuine Whirlpool part
By: Whirlpool
Part Number: 8520842

This collector hose assembly routes and channels water inside the appliance to the drain area, helping maintain proper water flow during cycles. It replaces worn, cracked, or leaking collector hoses to reduce leaks and maintain performance. What it does:

  • Channels wastewater from internal tub components to the drain system
  • Helps prevent leaks caused by cracked, split, or brittle hose sections
  • Restores proper routing when the original hose is kinked, collapsed, or damaged
  • Compatible with factory routing and mounting points for correct fit
What's included: One collector hose assembly Install notes:
  • Disconnect power and water supply before starting any repair
  • Inspect adjoining clamps and fittings; replace if corroded or damaged
  • Follow OEM routing and secure with the original clamps or new OEM-style clamps

Do-It-Yourself Stories from Customers like You Damaged hose.   David B. • Hutto , TX • February 12, 2024

Ordered the correct replacement part. Read more

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Wheel Leg (Support), Single
Genuine Whirlpool part
By: Whirlpool
Part Number: WP302819

This wheel leg is a replacement support used to stabilize and allow smooth movement of the appliance's lower assembly. It restores proper leveling and reduces wobble so the appliance sits securely and rolls or rests as designed. What it does

  • Supports the appliance chassis at the lower corner and transfers load to the floor
  • Helps maintain correct appliance height and leveling to reduce vibration and rocking
  • Restores proper rolling or stationary support where a worn or broken leg caused instability
  • Commonly replaced when the leg is cracked, stripped, missing, or no longer holds weight
What's included One wheel leg Install notes
  • Verify appliance is unplugged and empty before accessing lower cabinet or base
  • Support the appliance with a block or jack to prevent shifting while replacing the leg
  • Remove any access panels or retaining hardware as needed; install the new leg in the original orientation
  • Replace any fasteners that are damaged and test stability before returning the appliance to service

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Follower
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3369529

 

Do-It-Yourself Stories from Customers like You The soap door wouldn't open   Steven P. • Columbus , OH • April 27, 2015

I replaced the part and had the dishwasher up and running in about 20 minutes. Read more

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Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: 3368922

 

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Floor Mount Kit
Genuine Whirlpool part
By: Whirlpool
Part Number: 4378968

 

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Handle (Appliance Door)
Genuine Whirlpool part
By: Whirlpool
Part Number: W11033847

A replacement appliance door handle that restores a secure grip and proper operation to a worn or broken handle. Designed to match the original mounting style for a clean, factory-fit appearance. What it does:

  • Provides a sturdy grip for opening and closing the appliance door smoothly
  • Replaces cracked, loose, or broken handles that affect normal door use
  • Restores correct alignment and leverage to reduce strain on door components
  • Helps prevent accidental drops or slippage when grabbing the door
What's included:
  • One replacement handle
Install notes:
  • Remove power and empty the door area before starting any repair
  • Typical install requires removing trim or screws; use manufacturer-recommended fasteners
  • Retain original mounting hardware unless the new handle explicitly includes replacements

Do-It-Yourself Stories from Customers like You Needed a part for dishwasher   Kathy C. • Rancho Mirage , CA • April 10, 2016

Simple replacement part. Read more

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Support Bearing Assembly (Rear Drum Support), 1 Count
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3371745

This support bearing assembly stabilizes the dryer drum and helps it spin smoothly to improve tumbling and reduce noise. Designed to replace a worn or noisy rear drum support for compatible Whirlpool dryers. What it does:

  • Supports the rear of the dryer drum so it rotates evenly
  • Reduces squeaks, grinding, and wobbling caused by worn bearings
  • Helps maintain proper drum alignment to prevent uneven wear
  • Works with the drum shaft to keep tumbling smooth during operation
What's included:
  • One support bearing assembly
Install notes:
  • Disconnect power before beginning any repair to avoid electrical shock
  • Access may require removing the dryer rear panel and drum; follow manufacturer service instructions
  • Inspect adjacent components and replace if excessively worn
  • Tighten fasteners to manufacturer torque specs and test operation after reassembly

Do-It-Yourself Stories from Customers like You Water not completely emptying out of the tub.   Everett S. • Visalia , CA • March 03, 2023

Noted damaged gasket seal and support during water removal. Cleaned all pumps, filter, and screens. Changed air gap device. Replaced parts that were ordered. Used 1 cup of vinegar and baking soda to clean rest of dishwasher drainage system. When I started the unit, it ran much quieter due the new parts replacement. The other tool required for repair was a T25 Torx screwdriver, which was required on the Support Bearing Assembly. Read more

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Bumper, Dishrack
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3385142

 

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Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: WP489399

Size: 8-32 x .312 inch.

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Screw (8-32 X 3/8"), 1 Count
Genuine Whirlpool part
By: Whirlpool
Part Number: WP6-912366

This is a machine screw used to secure appliance panels and components where an 8-32 thread fastener is specified. It provides a reliable hold for control panels, brackets, and interior assemblies. What it does:

  • Fastens panels, brackets, and small components to the appliance chassis
  • Holds control assemblies and trim pieces in place
  • Maintains secure connections that prevent vibration-related loosening
  • Works where an 8-32 coarse-thread machine screw of short length is required
What's included:
  • One 8-32 x 3/8" machine screw
Install notes:
  • Use the correct driver (Phillips or slotted) to avoid stripping the head
  • Thread into metal or nut/insert; do not overtighten to prevent thread damage
  • Disconnect power and remove any panels as required for safe access

Do-It-Yourself Stories from Customers like You Missing panel   Thomas W. • Buford , GA • September 29, 2020

Put panel on with 2 screws Read more

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Funel
Genuine Whirlpool part
By: Whirlpool
Part Number: WP8520841

 

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Inner Door
Genuine Whirlpool part
By: Whirlpool
Part Number: WP8528310

 

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Guard, Filter
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001796

Color: Gray

Do-It-Yourself Stories from Customers like You The guard filter had broken tabs for maytag dishwasher   Catherine S. • Bethel , CT • January 16, 2016

I watched the video first, then I exchanged the new guard filter and lower washer arm parts and it was done. I am glad I watched the video to know that I had to retain the end shields. I probably would have discarded them if I had not watched the video. . Saved myself a service call fee. The parts arrived in 3 days which was nice. . Read more

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Wire Tie
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10339879

 

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