Mdb7749wba2 Parts

Seal included. This sump housing assembly includes a 32.17 millimeter hole for the thermistor. If the hole for the thermistor is 31-31.5 millimeters you will need to order WP8534882.

This overfill float and shaft assembly monitors the dishwasher's water level. As the tub fills, the float rises and triggers the float switch to shut off the inlet water, helping prevent overfilling and leaks.

• Senses tub water level and moves up/down with the water
• Activates the float switch to stop filling at the correct level
• Helps protect against overfill-related leaks
• Common symptoms include: won't fill (float stuck up), continuous filling/overfilling (float stuck down or damaged), or float not moving freely

• Disconnect power and turn off the water supply before servicing
• Lift the old float straight up from inside the tub; access the underside (behind the toe panel) as needed to release the shaft from the float switch lever
• Install the new shaft through the guide and onto the switch lever; seat the float so it moves freely
• Verify smooth float movement and test a fill cycle while checking for leaks

This replacement part is a dishwasher pump and motor assembly. The dishwasher pump and pump motor circulate water through the dishwasher's spray arm. When the spray arms aren't spraying properly, this could mean that it's time for a new pump and motor assembly. Luckily replacing this part is a relatively simple process.Start by making sure the dishwasher is unplugged. After that shut off the water supply going to the dishwasher. Then disconnect the drain line from the garbage disposal or sink drain. Open the dishwasher door and pull out the bottom dish rack. Remove the upper dishrack from its track. Release the spray arm on the bottom of the washer. Then proceed to release the feed tube clips. Using a nut driver remove the bottom access panel and tow panel. Pull them out to remove them. Remove the power cable from the junction box, and disconnect the supply line from the inlet valve. Proceed to pull the dishwasher out of the counter. Tilt the dishwasher on its side and pull the hose from the drain pump. Remove the wire harness from the pump. Disconnect wires from diverter motor and circulation motor. Once complete, proceed to tilt the dishwasher upright and remove the pump and motor assembly from the bottom of the dishwasher. Replace with the new assembly.This replacement part is compatible with Whirlpool, Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Sears/Kenmore brand dishwashers.

This replacement shield fits over the heater/probe area to provide a protective barrier. It helps prevent direct contact and excessive radiant heat exposure, protecting nearby components and supporting accurate temperature sensing for consistent operation. What it does:

• Shields the heating element and adjacent temperature probe/sensor area
• Helps prevent heat damage to nearby plastics, wiring, and components
• Reduces the chance of items contacting or striking the heater/probe
• Common signs it's needed: cracked, warped, or missing shield; discoloration; rattling or an exposed probe/heater area

• 1 shield

• Disconnect power and allow all heated parts to cool before servicing
• Access the heater/probe area and note the original shield orientation
• Seat the shield fully; secure with existing clips/fasteners if applicable
• Verify clearances around the heating element before restoring power

Bottle with brush. Color: Black. Size: 0.6 fl.oz.

This compression tube nut secures water inlet tubing to a threaded fitting to create a reliable, leak-resistant seal. Replace a cracked or stripped nut to stop drips at the connection and keep your appliance's water system working properly.

• Compresses the tubing against the fitting to seal the water line at the inlet valve, filter head, or other water-system connections
• Helps correct leaks at the water line connection point
• Replaces nuts that are cracked, cross-threaded, or deformed
• Common symptoms: water dripping at the connection, difficulty tightening the line, or a poor seal after reassembly

• Shut off the water supply and disconnect power before servicing.
• Slide the nut onto the tubing first, seat the tube fully on the fitting, then hand-tighten and snug with a wrench; do not overtighten.
• Inspect and reuse the existing sleeve/ferrule and tube insert if in good condition; replace if worn.
• Restore water and check for leaks at the connection.

The door balance mount is the side-frame bracket that supports the dishwasher's door counterbalance system. When worn or broken, it can let the door drop, slam, bind, or feel heavy. Replacing it restores smooth, controlled door movement. What it does

• Anchors the door springs and balance link/cable to counterbalance the door's weight
• Helps the door open and close smoothly without dropping or slamming
• Guides the balance link for consistent, quiet movement
• Common symptoms: door feels heavy or uneven, falls open, won't stay put, or makes grinding/squeaking noises; visible damage to the bracket or rollers

• One door balance mount (bracket)

• Disconnect power and shut off water before servicing
• Pull the dishwasher out slightly to access the side where the mount is installed
• Carefully relieve spring tension; note link/cable routing before removal
• Transfer the spring/link to the new mount, secure the bracket, and check door balance on both sides

This control panel replaces the front console that houses the buttons and indicator lights on your dishwasher. It restores a clean look and responsive inputs so you can select options and start cycles reliably again.

• Provides the user interface for cycle selection, Start/Cancel, and options
• Sends keypad inputs to the main control board for proper operation
• Displays status/option indicators where applicable
• Replaces cracked, faded, or unresponsive consoles to improve usability

• Disconnect power to the dishwasher before servicing
• Open the door and remove inner-door screws to release the console from the door
• Support the wiring; transfer any clips/trim and reuse existing hardware as required
• Avoid pinching the ribbon cable and verify button function before final reassembly

This upper rack wheel restores smooth gliding of your dishwasher's top rack. It supports and guides the rack on its rails, helping prevent binding, wobbling, or popping off the track when an original wheel is worn or broken.

• Guides and supports the upper dishrack on the slide rails
• Restores smooth in-and-out rack movement during loading and unloading
• Replaces a cracked, worn, or missing upper rack wheel
• Common symptoms: rack is hard to slide, wobbles, pops off the track, or makes grinding/squeaking noises

• Disconnect power and shut off the water supply before servicing.
• Pull out the upper rack and remove/open rack stops per your model to access the wheel.
• Release the damaged wheel from its mount; snap the new wheel into the same location/orientation.
• Reinstall the rack and stops; verify the rack rolls smoothly on both rails.

This inner door seal forms a moisture barrier between the dishwasher tub and the door assembly, helping keep wash water and steam contained. Replacing a worn seal can stop drips at the door and protect internal components.

• Seals the joint along the inner door to contain wash water and steam
• Helps prevent door-area leaks or drips during cycles
• Blocks moisture from entering the door cavity where electrical parts reside
• Common signs: water at the bottom/sides of the door, damp control area, visible wear/flattening or tears on the seal

• Disconnect power and turn off water supply before servicing
• Open the door and remove perimeter screws to separate inner/outer door panels
• Remove the old seal; clean the mounting surface and note seal orientation
• Press the new seal firmly into place, reassemble, and run a leak check

Size: 1/4 inch hex head, 10-12 x 1/2 inch.

Replace a missing or cracked rinse aid cap to stop leaks and restore proper dispensing. This dishwasher dispenser cap seals the rinse aid reservoir so dishes dry better and avoid spots by delivering rinse aid consistently.

• Seals the rinse aid reservoir to prevent leaks and evaporation
• Helps ensure correct rinse aid dosing during wash cycles
• Replaces worn, stripped, or missing caps that won't tighten
• Common symptoms: pooled rinse aid in the door or tub, visible cap damage, dishes left with spots due to no rinse aid

• For safety, disconnect power to the dishwasher before servicing
• Open the door and remove the old cap by turning counterclockwise
• Clean the dispenser opening; seat the new cap and turn clockwise until snug—do not overtighten
• Refill rinse aid, wipe up any spills, and run a short cycle to check for leaks

Color: Grey

Includes vinyl rack repair touch up paint and tine tip covers. Color: Grey

12 Ft in length

This cover screw secures an appliance cover or access panel to the cabinet, protecting internal components and reducing vibration. Replace missing, stripped, or corroded screws to keep panels tight and the unit safe and quiet.

• Fastens a cover or access panel to the appliance chassis
• Maintains proper panel alignment and enclosure integrity
• Helps eliminate rattles or buzzing from loose panels
• Typical symptoms: loose/misaligned cover, missing screw, vibration noise

• Disconnect power; for gas/water appliances, shut off supplies before service
• Wear cut-resistant gloves—sheet-metal edges can be sharp
• Align the cover and start the screw by hand to avoid cross-threading
• Tighten snugly; do not overtighten into plastic or thin metal