Skip to Content
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • 15 million satisfied customers 15 million satisfied customers
  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store

Mdb4050 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.

More
Lid Hinge Pin
Genuine Whirlpool part
By: Whirlpool
Part Number: WP6-912678

This is the longer of the two dispenser lid hinge pins. For the shorter lid hinge pin order WPY912679.

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

More
$5.95
Compare At:
$7.14
You Save:
$1.19

IN STOCK
Ships Today Guaranteed
Add to Cart
Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: WP489128

Screw: 8-16 x 3/8 inch.

More
$9.05
Compare At:
$9.38
You Save:
$0.33

IN STOCK
Ships Today Guaranteed
Add to Cart
Appliance Panel Mounting Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: WP489491

Replacement screw secures appliance panels, brackets, and internal components. Needed when original screws are stripped, missing, or damaged during repair.

Do-It-Yourself Stories from Customers like You 15 year old refrigerator door handle broke   Martine G. • Everett , WA • March 30, 2015

I watched a 3 minute video on You Tube on how to replace a refrigerator door handle and it took me 3 minutes to replace mine. Super easy! Read more

More
$7.56
Compare At:
$8.32
You Save:
$0.76

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher O-Ring Seal
Genuine Whirlpool part
By: Whirlpool
Part Number: WP910934

Creates a leak-resistant seal between pump components and connections. Replace when you notice water leaking during drain cycles or around fittings.

This part fixes the following symptoms
  • Not cleaning dishes properly
  • Leaking
  • Noisy
See more...
Do-It-Yourself Stories from Customers like You There were two problems one of the spring links on the door broke which meant the door would free fall when opened unless you held on to it also the lower bearing on the motor virtually seized up   Randall B. • Moab , UT • January 14, 2017

I first wanted to get the dishwasher running, before ordering the spring links. So I disassembled the pump / motor assembly to determine the reason the motor would not start. My wife cleaned all of the parts in the pump assembly. I took the motor apart and discovered that the lower bearing ( a sleeve type bearing) was dry and dirty, and was the culprit for the motor seizing. I cleaned up the bearing and lubricated it with SAE 20W. I also packed felt inside the cavity adjacent to the bearing.... Read more

More
$3.65
Compare At:
$4.46
You Save:
$0.81

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Bowl Tine
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002138

Rear bowl tine for dishwasher lower rack. Replace when rusted, cracked, broken, or missing. Snaps into place on rack to hold bowls securely during wash.

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

More
$45.38
Compare At:
$54.46
You Save:
$9.08

IN STOCK
Ships Today Guaranteed
Add to Cart
Tub Wheel (Dishwasher), Single
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002342

This tub wheel mounts on the dishwasher's tub wall to guide and support the rack as it slides in and out. Replacing a worn wheel restores smooth rack movement and helps prevent binding, noise, and derailments.

  • Mounts to the tub to provide rolling support for the dish rack/rail
  • Replaces cracked, flattened, or missing wheels that impede rack travel
  • Helps fix racks that stick, bind, are hard to pull/push, or derail
  • Reduces grinding or squeaking from the rack area
What's included: 1 tub wheel
  • Disconnect power at the breaker before servicing
  • Open the door and pull the rack forward for access
  • Release the old wheel from its retainer/axle per your model's design; install the new wheel in the same orientation
  • Ensure the wheel spins freely and the rack slides smoothly before use

More
$6.95
Compare At:
$8.27
You Save:
$1.32

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Lower Spray Arm
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001788

Replacement lower spray arm for dishwashers. Installs at the bottom of the tub to distribute water during wash cycles. Replace if cracked, clogged, or broken.

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

More
$66.78
Compare At:
$79.47
You Save:
$12.69

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Tension Spring
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10116816

Replacement tension spring for dishwasher doors and mechanisms. Restores proper return force when the original spring is broken, stretched, or missing.

More
$4.95
Compare At:
$5.89
You Save:
$0.94

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Leveling Leg
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10143258

Replacement leveling leg that stabilizes and adjusts your dishwasher height for proper alignment. Needed when bent, broken, or missing to eliminate rocking.

More
$10.95
Compare At:
$13.14
You Save:
$2.19

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Dispenser Retainer Clip
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001288

Fix loose or rattling dishwasher trim panels with this dispenser retainer clip. Secures interior panels and exterior trim for proper fit. Easy repair.

More
$3.95
Compare At:
$4.74
You Save:
$0.79

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Spray Diverter Cap
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001443

Gray plastic cap that snaps onto the spray tube diverter assembly inside your dishwasher. Replace if cracked, broken, or won't stay attached to tube.

Do-It-Yourself Stories from Customers like You Washer on lower side not working   Bert W. • Garrettsville , OH • April 02, 2018

Still not completed, have to order part #PS11747606. When I receive it, I only have to assemble parts Read more

More
$5.37
Compare At:
$6.34
You Save:
$0.97

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Panel Mounting Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: WP6-912366

8-32 x 3/8" machine screw secures dishwasher control panels, brackets, and interior assemblies. Replace missing, stripped, or lost screws during repairs.

Do-It-Yourself Stories from Customers like You Correctly anchoring dishwasher.   Karen F. • Sunrise , FL • November 30, 2018

Your company was the one who had the correct screws for installation of dishwasher. Thanks Read more

More
$9.07
Compare At:
$9.98
You Save:
$0.91

IN STOCK
Ships Today Guaranteed
Add to Cart
Dishwasher Rinse Aid Dispenser Reservoir
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002833

Holds and dispenses rinse aid during the final rinse to prevent spots and improve drying. Replace if cracked, leaking, or not dispensing properly.

More
$49.38
Compare At:
$58.76
You Save:
$9.38

IN STOCK
Ships Today Guaranteed
Add to Cart
Wire Tie
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10339879

 

Do-It-Yourself Stories from Customers like You Kenmore washer made humming noise no agitation no more spin   Peter W. • Cupertino , CA • October 18, 2026

Paid a friend and he changed the coupler, worked a couple times, then same prob. Hired a pro, ordered a lot of parts, changed drive shaft, transmission/gear case assembly, motor, coupler again. Refunding a lot of unnecessary parts. Read more

More
$5.95
Compare At:
$7.14
You Save:
$1.19

IN STOCK
Ships Today Guaranteed
Add to Cart
Indicator Light
Genuine Whirlpool part
By: Whirlpool
Part Number: WP903115

To order indicator lens use WP22001948.

More
$5.37
Compare At:
$6.34
You Save:
$0.97

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Power Cord Strain Relief Connector
Genuine Whirlpool part
By: Whirlpool
Part Number: 4396672

Secures the power cord where it enters the cabinet, protecting the jacket and preventing pull on internal connections. Replace if cracked, broken, or missing.

More
$16.95
Compare At:
$20.17
You Save:
$3.22

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store
​