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Mdc40000awx 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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Float Palnut (Dishwasher)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP911265

This float palnut is a push-on retainer that secures the dishwasher's water-level float to its stem. Keeping the float anchored helps the overfill protection work properly, supporting correct fill levels and helping prevent leaks from overfilling. What it does:

  • Holds the float in position so it can move freely with water level changes
  • Helps the float reliably actuate the overfill/float switch
  • Replace if cracked, loose, or missing
  • Typical symptoms include a loose or wobbly float, the float popping off, erratic filling, overfilling, or leaks near the float area
What's included:
  • One float palnut
Install notes:
  • Disconnect power and turn off water supply before servicing
  • Remove the lower rack to access the float assembly
  • Remove the old retainer; press the new palnut squarely onto the float stem until snug
  • The float moves freely up and down before reassembling

Do-It-Yourself Stories from Customers like You Runs but will not fill with water   Michael K. • Las Vegas , NV • January 25, 2020

I first installed the inlet pump with no results. I then ordered a Control Switch and Float and Nut. This fixed the problem. Everything comes out so clean. I also replaced the filter which allowed me to clean debris around old filter. It is also easier to replace all these parts with the dishwasher pulled out and tilted on its side. I had to pull mine out to unplug power to the dishwasher. Read more

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Dishwasher Rinse Aid Knob
Genuine Whirlpool part
By: Whirlpool
Part Number: WP6-903123

This knob controls the rinse aid dispenser setting in your dishwasher, allowing you to adjust how much rinse aid is released during the wash cycle. It typically has numbered settings from low to high dispensing amounts. Replace it if you can't adjust the rinse aid flow, the knob is missing, or if it won't stay in the selected position.

Do-It-Yourself Stories from Customers like You Replacing a melted cap to rinse aid dispenser   Theresa K. • Ridgely , MD • November 18, 2014

Was easy to locate exact part needed by inputting model number Received my part in under a week. Great site for parts Read more

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Latch
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001291

Note: Check Serial Number for correct part

Do-It-Yourself Stories from Customers like You My dishwasher would not start the latch would not catch   Gary L. • Calmar , IA • July 04, 2017

I installed the door latch assembly and handle. It worked fine after that. Read more

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O-Ring (Seal), 1
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002003

This O-ring creates a watertight seal in your dishwasher's wash or drain system, helping prevent leaks and maintain proper water pressure. Replace a brittle, flattened, or damaged ring to restore a reliable, leak-free connection.

  • Provides a watertight seal between mating parts such as pump housings, fittings, or hose joints
  • Helps stop drips and seepage caused by a worn or deformed seal
  • Common symptoms: water under the unit, moisture around pump/tubing connections, or leaks after reassembly
  • Replace if the old ring is cracked, cut, flattened, or hardened
What's included: 1 O-ring Install notes:
  • Disconnect power and turn off the water supply before servicing
  • Place a towel or shallow pan to catch residual water
  • Clean the groove and mating surfaces; lightly moisten or use a manufacturer-approved lubricant to help the ring seat without pinching
  • Seat evenly, reassemble without overtightening, and run a short test cycle to check for leaks

Do-It-Yourself Stories from Customers like You Had water leak between door causing puddling on floor   Frank M. • Shelby Charter Township , MI • February 04, 2017

Removed 8 screws that retain inner door to outer door. Removed rinse aid dispenser nut and replaced O-ring around dispenser. Also, removed 2 screws that retain the latch assembly and replaced rubber grommet around latch lever that retains soap dispenser door. Read more

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Dishwasher Tine Row
Genuine Whirlpool part
By: Whirlpool
Part Number: 12002218

This plastic component holds individual tines in proper position on your dishwasher rack, keeping them aligned and secure during wash cycles. Each tine row contains multiple plastic prongs that hold dishes and utensils in place. Replace this tine row if individual tines are broken, missing, or no longer hold dishes securely in position.

Do-It-Yourself Stories from Customers like You Rusty worn out dishrack and parts   Michael R. • Morris Plains , NJ • March 26, 2016

I ordered new replacement parts. Read more

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Dishwasher Panel Mounting Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: WPY912620

Replacement screw for securing dishwasher door panels, inner liners, and internal brackets. Needed when original screws are stripped, missing, or damaged.

Do-It-Yourself Stories from Customers like You Door latch on my dishwasher was broken   William H. • Columbia , SC • January 26, 2018

Ordered the part from AppliancePartsPro's, watched the video, new latch works perfect. I've repaired several appliances in my house by diagnosing simple problems going to AppliancePartsPro's diagram's, ordering the part and installing myself. Never had any problems. The bearing in the back of the dryer was tricky but worked great. Keep track of all parts when you disassemble and assemble in reverse order. Taking photos as you disassemble helps for referencing if you get stumped. Read more

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Dishwasher Rack Track
Genuine Whirlpool part
By: Whirlpool
Part Number: WPY912545

Guides dishwasher rack for smooth sliding. Replace this track when cracked, bent, or worn to restore stable rack movement and prevent binding or sagging.

Do-It-Yourself Stories from Customers like You Upper rack of dishwasher was not pulling out smoothly   Douglas L. • Bellaire , TX • March 03, 2015

Ordered new frame, wheels and SS slide for the bad side. Job was done in 10 minutes and the rack now works smoothly. Read more

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Dishwasher Nozzle Jump Up
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001787

Fix dishes not cleaning or low water pressure in your dishwasher. This nozzle jump up directs water to the spray arm. Easy 5-minute install, no tools needed.

Do-It-Yourself Stories from Customers like You Bought a foreclosure and parts were missing from dishwasher   Catherine R. • Alexander , AR • November 12, 2014

I was able to locate the model number and enter this on the website which gave me an expanded view of all the parts for my model. From this I was able to determine which parts I needed and order them. Customer Service was Excellent for Helping me make the right choices. The parts were cheapest here then any other website I found and they shipped to my home in less than 3 days! Now my dishwasher works like new! Thank You AppliancePartsPro for all your help and getting me the parts I... Read more

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Spring, Cup Lid
Genuine Whirlpool part
By: Whirlpool
Part Number: WPY912547

 

This part fixes the following symptoms
  • Door latch failure
  • Will not dispense detergent
See more...
Do-It-Yourself Stories from Customers like You Problem with detergent cup lid.   John M. • Craig , CO • November 27, 2017

The foam was shot on the detergent cup lid. Hard as a rock. Causing caking problems, dribble down the inside wall of the door and leaving lumps of detergent. Cut the door in half wit aviation snips and pulled out the two halves. Discovered at this point that the spring had gone soft. Bought one ahead of time, so I was set. Put the spring on the left pin, put the spring pin in the door, slipped the door into place (open) and put the right pin in with pliers. Door snaps open now. Read more

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Seal Ring-
Genuine Whirlpool part
By: Whirlpool
Part Number: WP912644

 

Do-It-Yourself Stories from Customers like You Had a leak from side of tub   Joey L. • Longmont , CO • October 25, 2018

Replaced the water injector and seal. Read more

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Dishwasher Door Latch Hook
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001355

This door latch hook engages with the door strike to securely hold your dishwasher door closed during operation. It ensures proper sealing and prevents the door from opening while the unit is running. Replace this hook if the door won't stay closed, water leaks from the door area, or the latch mechanism feels loose.

Do-It-Yourself Stories from Customers like You Dishwasher would not complete entire cycle wash   Hans B. • Warner Robbins , GA • July 24, 2019

Installed door latch assembly with switch contacts supplied with the assembly. After troubleshooting, found out it was only 1 of 2 switch contacts that were bad. Read more

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Upper Spray Arm/Retainer
Genuine Whirlpool part
By: Whirlpool
Part Number: 12001446

 

Do-It-Yourself Stories from Customers like You Upper spray arm fell off!   Grant I. • Lombard , IL • March 14, 2017

Found the retaining clip on the parts list. Watched the videos to figure out how the upper arm attaches. Tried cleaning out the terribly clogged upper arm. Then looked at the lower wash arm--WOW! Talk about ugly clogs! Watched second video to see how that lower arm comes off. Got the lower arm off and realized all the gunk I was able to poke out of the holes would just come back, so replaced both spray arms. YES, the upper arm includes the retaining clip!! Parts arrived in 1.5 days.... Read more

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Pump Module Repair Pkg
Genuine Whirlpool part
By: Whirlpool
Part Number: 12001489

 

Do-It-Yourself Stories from Customers like You Broken impeller   Jeremy M. • Cohutta , GA • August 28, 2015

I used the pump kit to fix my problem. Customer service was excellent and the parts arrived lightning fast. Read more

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Timer, Hard Wtr Film
Genuine Whirlpool part
By: Whirlpool
Part Number: 12001533

 

Do-It-Yourself Stories from Customers like You Timer worn out   John S. • Yorktown , VA • March 21, 2015

Replaced old timer with new, factory timer. Took 20 minutes. Works like new. The parts were the exact replacement, not generic (universal). After ordering, the part arrived in 2 days. That's hard to beat! Read more

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Assy- Disc
Genuine Whirlpool part
By: Whirlpool
Part Number: 6-905323

 

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Dishwasher Door Latch Hook
Genuine Whirlpool part
By: Whirlpool
Part Number: 6-912650

This door latch hook secures your dishwasher door in the closed position during operation, ensuring proper sealing and safety. It engages with the door strike to prevent the door from opening while water is present or during cycles. Replace this hook if your dishwasher door won't stay closed, cycles won't start, or water leaks from the door area.

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  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
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  • Google Trusted Store Google Trusted Store
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