Mdb7749awb Parts

The Middle spray arm is an OEM replacement part for Whirlpool dishwashers. Located inside the dishwasher tub, this middle spray arm helps deliver water to dishes on all levels for optimal cleaning. 

Causes of a bad middle spray arm can include clogged or blocked spray holes, damaged or missing spray vanes or jets, or mechanical issues preventing rotation. 

Symptoms of a bad middle spray arm include:

• Inadequate cleaning, especially of dishes in the middle rack 
• Dried or caked-on food residue 
• Unbalanced water spray distribution 

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models. 

The Water Manifold Probe is an OEM replacement part for Whirlpool dishwashers. This probe monitors water levels during dishwasher cycles by sensing when the water valve opens and closes during different stages of cleaning and rinsing. It plays an integral role in ensuring the precise delivery of water at optimal temperatures and pressures. 

Symptoms of a bad water manifold probe include:

• Inability to sense proper water levels 
• Fault codes or error messages related to water levels
• Improper or failed dispenser of detergent
• Incomplete or inadequate wash and/or rinse cycles

Over time, probes can corrode, crack, or malfunction due to repetitive heating and cooling cycles. 

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

The Door Hinge Assembly is an OEM part for Whirlpool dishwashers. This hinge assembly is responsible for attaching the dishwasher door to the main body, allowing it to open and close smoothly while maintaining a proper seal when shut. 

Causes of a bad door hinge assembly can include regular wear and tear, damage from excessive force or accidental impacts, and corrosion from exposure to moisture and detergents.  

Symptoms of a bad door hinge assembly include:

• The dishwasher door not closing properly or staying open
• Difficulty opening or closing the dishwasher door
• A misaligned dishwasher door
• Unusual noises or resistance when moving the door

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

The Spring Tension Hose Clamp is an OEM part for Whirlpool washing machines. It is designed to secure hoses in place, preventing leaks by maintaining consistent tension on the hose connections.

Over time, spring tension hose clamps can lose their effectiveness due to metal fatigue, corrosion, or damage from frequent tightening and loosening. This can lead to leaks and improper hose connections.

Symptoms of a bad spring tension hose clamp include:

• Water leaks around hose connections
• Loose or disconnected hoses
• Unusual noises or vibrations during operation
• Water pressure issues within the washing machine

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

The Detergent Dispenser Bracket is an OEM replacement part for Whirlpool dishwashers. Located inside the dishwasher tub along the edge, this bracket securely holds the entire detergent dispenser assembly in place. 

Causes of a bad bracket may be normal wear and tear over time, damage from overloading dishes, or accidental impact affecting the integrity of the plastic.

Symptoms of a bad detergent dispenser bracket include:

• Loose or unstable detergent dispenser  
• Detergent not dispensing or leaking
• Clanking noises coming from inside the tub
• Visible cracks, breaks, or deformations in the bracket 

This OEM Whirlpool part is also compatible with KitchenAid, Jenn-Air, Amana, and some Kenmore and Maytag models.

The Screw is an OEM part for Whirlpool dishwashers. It secures the spray arm to the dishwasher, ensuring it rotates properly to distribute water evenly throughout the dishwasher during cleaning cycles.  

Common causes of a faulty spray arm screw include wear and tear from regular use, corrosion from exposure to water and detergents, or damage from improper installation or removal.

Symptoms of a bad spray arm screw include:

• The spray arm not rotating or functioning correctly
• Loose or wobbly spray arm
• Unusual noises coming from the spray arm during operation
• Poor cleaning performance due to inadequate water distribution

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

The Lower Spray Arm is an OEM part for Whirlpool dishwashers. This part distributes water throughout the dishwasher during the wash cycle, ensuring that dishes are thoroughly cleaned. It rotates to spray water at high pressure, reaching all areas of the lower rack.

Causes of a bad lower spray arm can include regular wear and tear, blockages from food debris, or damage from large or improperly loaded items.

Symptoms of a bad lower spray arm include:

• Dishes not being cleaned properly
• Spray arm not rotating
• Visible cracks or damage to the spray arm
• Clogged spray nozzles

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

The Screw Hole Cap is an OEM part for Whirlpool dishwashers. It covers the screw holes, providing a clean and finished appearance while preventing moisture and debris from entering the screw openings. This helps maintain the dishwasher's aesthetic and ensures that screws remain protected from rust and corrosion.

Causes of a bad screw hole cap can include regular wear and tear, accidental impacts, or misplacement during maintenance.

Symptoms of a bad screw hole cap include:

• Missing or loose caps
• Moisture or debris accumulating in screw holes
• Visible wear or damage to the caps

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

The Volute with Seal is an OEM part for Whirlpool dishwashers. This part directs water flow within the dishwasher's pump, ensuring efficient circulation and pressure during the wash cycle. The seal helps to prevent leaks by maintaining a tight closure between the volute and other pump components.

Common causes of a bad volute with seal include wear and tear from regular use, damage from debris or hard water deposits, and seal degradation due to age or chemical exposure.

Symptoms of a bad Volute with Seal include:

• Water leaking from the pump area
• Decreased washing performance
• Unusual noises from the pump during operation
• Visible cracks or damage to the volute or seal

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

Gasket for upper wheel.

This is one half of the silver basket. For a complete basket you will need to order two(2).

This upper rack wheel assembly helps the dishwasher's upper dishrack roll in and out smoothly. Replacing a worn wheel restores proper rack movement and prevents jamming that can stress the adjuster and rails.

• Allows the upper rack to glide smoothly on the rail
• Helps correct a sticking, wobbly, or uneven upper rack
• Can reduce grinding or squeaking noises when sliding the rack
• Address difficulty fully extending or retracting the upper rack

• Disconnect power and turn off water before servicing
• Pull the upper rack out; release the rack end stops as directed in your model's service info
• Swap the old wheel assembly for the new one; ensure it locks securely to the rack or adjuster
• Reinstall end stops and test rack travel before restoring power

The Hex-Head Screw is an OEM replacement part for use in Whirlpool dishwashers. This metal screw measures approximately ¾ inch long. Its primary purpose is to secure the dispenser bracket in place, ensuring stable operation. This hex-head screw is designed for use with compatible hexagonal tools. This makes installation and removal straightforward. This part is sold individually and is guaranteed to fit your dishwasher door panel. This screw is compatible with select Whirlpool brand models including Amana, Crosley, Estate, Inglis, Jenn Air, Kenmore, Kitchen Aid, and Maytag.

The Power Cord Kit is an OEM replacement part for Whirlpool dishwashers. It is a 3-prong grounded, 16-gauge cord that includes all the hardware needed for installation. Includes all hardware needed for installation.

Causes of a bad power cord can include normal wear and tear over years of use, accidental impacts or cuts to the wiring, or improper installation that damages components.

Symptoms of a bad power cord include:

• The dishwasher not turning on or completing cycles
• Warm or hot power cords during operation
• Frayed, cracked, or exposed copper wiring

This is a genuine Whirlpool OEM replacement this part is also compatible with Maytag, Jenn-Air, and some Kenmore models.

This factory screw secures appliance components. It restores a tight, reliable hold when the original hardware is stripped, missing, or corroded—helping prevent vibration and keeping panels and brackets properly aligned.

• Provides threaded fastening for panels, brackets, covers, or internal components
• Replaces worn, rusted, stripped, or missing hardware
• Helps reduce vibration and rattling from loose parts
• Restores proper alignment and a secure fit of attached parts

• Disconnect power; turn off water supply before service
• Note original screw location and retain any spacers or clips for reassembly
• Start threads by hand to avoid cross-threading
• Tighten snugly; do not overtighten to prevent stripping

Quantity of ONE. Size: 8-18 x 5/8 inch. (#8 screw, 18 threads per inch, 5/8 inch long)