Skip to Content
  • Same-Day Shipping Same-Day Shipping
  • 365 Day Return Policy! 365 Day Return Policy!
  • Trusted Since 1999 Trusted Since 1999
  • 5,000+ Repair Videos 5,000+ Repair Videos
  • Repair ForumFree Tech Support!
  • Top Quality Store on Google

Mdb324039gx 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
Dishwasher Pump Motor Shaft Seal Head
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3385557

Leaking where motor shaft enters pump housing? This seal head stops leaks at the motor shaft, protecting your motor and preventing cabinet water damage.

More
$51.52

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Split Ring Seal
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3369045

Split-ring seal secures door or panel gaskets to prevent water and air leaks in your dishwasher. Replace when worn, cracked, or leaking. Confirm fit with your model number before ordering.

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

More
$7.95

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Wash Arm Cap
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99001428

Gray plastic cap that threads onto the center of your dishwasher's lower spray arm assembly. Replaces cracked, broken, or missing caps. Hand-tightens.

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

More
$5.95

Out Of Stock

Usually ships within 4 - 14 days

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

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Switch Holder (Mounting Bracket)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP99002240

This switch holder secures a small appliance switch or actuator in the correct position so the control can detect and respond reliably. Replacing a cracked or broken holder restores consistent switch alignment and helps prevent intermittent operation. What it does:

  • Holds the switch or actuator steady in the correct position for reliable electrical contact and activation
  • Keeps the switch aligned so buttons, door/lid actions, or control functions register properly
  • Common symptom: appliance function won't engage or is intermittent when the switch is loose or the holder is damaged
  • Prevents further wear on the switch by keeping it from shifting or rubbing against surrounding parts
What's included: One switch holder. Install notes:
  • Disconnect power (unplug or shut off breaker) before servicing the appliance
  • Remove the control panel or access panel to reach the holder; keep small clips and screws organized
  • Inspect the switch and actuator for damage while replacing the holder; replace any damaged mating parts

More
$49.69

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Water Hose
Genuine Whirlpool part
By: Whirlpool
Part Number: W11189178

Flexible water hose that routes water between dishwasher components. Replace if your original hose is cracked, leaking, worn, or damaged to restore flow.

More
$18.95

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Tub Funnel Seal
Genuine Whirlpool part
By: Whirlpool
Part Number: WP8520843

Seals the dishwasher tub funnel to prevent leaks. Replace if worn, cracked, or flattened to maintain a watertight connection. Verify fit with your model.

More
$7.95

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Motor Pump Mounting Disk
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3369012

Secures and aligns the motor pump assembly in your dishwasher. Replace if cracked, broken, or damaged during seal repair to restore proper fit.

Do-It-Yourself Stories from Customers like You Leaking water at the motor shaft seal   Robert F. • Butler , PA • June 05, 2015

Replaced the seal along with the impeller seal kit, it went very well thanx to your very helpful video and timely service Read more

More
$52.68

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Bearing (Single)
Genuine Whirlpool part
By: Whirlpool
Part Number: 3371746

This bearing helps the appliance's rotating assembly turn smoothly and reduces metal-on-metal wear for quieter, more reliable operation. Replace a worn bearing to address noise and movement issues that affect performance. What it does:

  • Supports the drum or tub shaft so it rotates with minimal friction
  • Reduces grinding, rumbling, or squeaking noises from the rotating assembly
  • Helps prevent excessive wobble or vibration during spin cycles
  • Limits metal wear that can lead to leaks or further component damage
What's included: One bearing (quantity: 1) Install notes:
  • Disconnect power and water before starting work
  • Inspect surrounding seals, shafts, and mounting surfaces for wear while replacing the bearing
  • Use correct tools and replacement hardware; follow OEM instructions for torque and alignment

More
$9.95

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Timer Control Knob
Genuine Whirlpool part
By: Whirlpool
Part Number: 3379290

Replacement timer control knob for your dishwasher. Restores grip and function when the original knob is cracked, broken, worn, or missing.

More
$52.68

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Collector Hose Assembly
Genuine Whirlpool part
By: Whirlpool
Part Number: 8520842

Collector hose assembly that channels wastewater from internal tubs to the drain area. Replace if cracked, leaking, or damaged to prevent water leaks.

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

Ordered the correct replacement part. Read more

More
$54.25

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Transport Wheel Caster
Genuine Whirlpool part
By: Whirlpool
Part Number: WP302819

This is a small rolling caster wheel designed to support and allow easy movement of the appliance during installation or repositioning. It mounts to the underside of the unit to enable smooth transport across floors. Replace this wheel if it is broken, seized, or missing, which can make the appliance difficult to move and may cause floor damage.

More
$8.81

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
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

More
$45.95

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Silverware Basket (Dishwasher Utensil Caddy)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP8539066

This silverware basket is a dishwasher utensil caddy that organizes forks, knives and spoons so cutlery cleans evenly and stays contained during the wash cycle. It fits into the lower rack and helps prevent items from shifting. What it does:

  • Holds and separates silverware and small utensils for better cleaning and safer handling
  • Keeps loose items from falling into the wash area or blocking the spray arms
  • Snaps into the lower dishwasher rack to stay secure during cycles
  • Works with standard dishwasher racks that accept a removable utensil caddy
What's included:
  • One silverware basket
Install notes:
  • Place the basket into the lower rack and align so it sits securely in the rack slots
  • No tools required for standard installation; handle with care to avoid sharp utensils
  • Inspect for broken tabs or clips before installing; damaged mounting points can allow the basket to shift
  • Clean periodically to remove food buildup and prevent odors

More
$56.34

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Power Supply Cover
Genuine Whirlpool part
By: Whirlpool
Part Number: 300068

 

More
$20.95

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Dishwasher Heater Support Bracket
Genuine Whirlpool part
By: Whirlpool
Part Number: 3379740

Secures the heater assembly in place to maintain proper alignment and stability. Replace if your bracket is cracked, broken, or missing to restore support.

More
$39.95

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
  • 5,000+ Repair Videos 5,000+ Repair Videos
  • Same-Day Shipping Same-Day Shipping
  • 365 Day Return Policy! 365 Day Return Policy!
  • Repair ForumFree Tech Support!
  • Top Quality Store on Google