Mdb7749wba2 Parts

This sump tab secures the dishwasher's sump assembly to the tub opening, keeping it properly aligned and sealed. Replace a broken or missing tab to address movement, rattling, or leaks originating from the sump area.

• Locks the sump assembly to the tub/base opening
• Helps maintain the sump-to-tub seal to limit leaks
• Keeps the pump intake and fine filter area properly positioned
• Common symptoms: leaks under the unit, loose/shifted sump or filter, rattling/vibration from the sump area

• Disconnect power and water supply before servicing
• Access the sump per your model (from inside the tub by removing lower rack/filters, or from below after removing the toe panel)
• Ensure the sump and gasket are fully seated; install the new tab until it locks securely
• Run a brief fill/drain test and check for leaks before reassembly

This control panel is the appliance's front console that houses the user controls and display, restoring normal operation and allowing selection of cycles, temperatures, and settings. It replaces a damaged or unresponsive console to regain control functionality. What it does

• Provides push-button/touch control input and houses the display for cycle selection and status feedback
• Routes user commands to the appliance's control electronics so cycles start and run correctly
• Commonly fixes symptoms such as unresponsive buttons, incorrect or blank display, or controls that do not register selections
• Replaces a cracked, worn, or cosmetically damaged console to restore usable controls

• One control panel (console) assembly as shown

• Always disconnect power (unplug or switch off the circuit breaker) before servicing to avoid shock
• Handle the panel carefully to avoid damaging the display lens or ribbon cable; set small parts aside during removal
• Installation may require removing trim and bezel screws; keep hardware organized for reassembly

This push retainer is a small press-on fastener that secures components to shafts or studs inside your appliance. It restores a tight, reliable hold so knobs, trim, or linkages don't loosen or fall off during use. What it does:

• Presses onto a shaft or stud to secure knobs, trim, or linkages—no threads required
• Maintains spring tension to resist vibration during normal operation
• Replaces a missing, bent, or weakened retainer
• Common symptoms: loose or wobbly knobs/trim, parts slipping off, or a retainer that won't stay on

• 1 push retainer

• Disconnect power; for gas appliances, also shut off the gas supply
• Access the shaft/stud and carefully remove the old retainer with pliers; avoid damaging adjacent plastic parts
• Press the new retainer on squarely using a deep socket or nut driver; do not hammer directly
• If the mating shaft or component is damaged or deformed, address that before installing the new retainer

A pronged cup washer that secures and cushions mating parts on appliances, restoring proper fit and reducing wobble. Replaces worn or damaged cup-style washers to help maintain stable component alignment and reliable operation. What it does:

• Fits into a cup or socket to hold shafts, knobs, or trim pieces in place
• Pronged design grips the mounting surface to prevent rotation and slippage
• Helps reduce vibration and noise caused by loose or worn washers
• Commonly used when a knob, shaft, or trim feels loose or wobbly

• Disconnect power to the appliance before servicing to avoid shock or injury
• Remove the related knob or trim carefully to access the washer; note orientation for correct reassembly
• Press the washer fully into the cup or socket so the prongs engage the mounting surface
• Inspect the surrounding components for wear and replace any damaged parts

This 10-24 threaded screw secures appliance components that use a #10 machine screw. It provides reliable fastening for panels, brackets, and assemblies so parts stay aligned and stable during normal use and service. What it does:

• Fastens panels, brackets, or assemblies that accept a 10-24 machine screw
• Maintains alignment and structural connection under normal operating loads
• Replaces worn, stripped, or missing screws to restore secure mounting
• Works with sheet-metal and component mating nuts or threaded inserts commonly used in appliances

• One 10-24 threaded screw

• Power tools can be used; avoid overtightening to prevent stripped threads or damaged components
• Disconnect power and follow all safety steps for your appliance before servicing
• Ensure proper engagement and torque to avoid damage

This overfill switch monitors water level and signals the appliance to stop filling to help prevent overflows. Use it to restore correct water-level control when the original switch fails or malfunctions. What it does:

• Detects excess water and interrupts the fill cycle as a safety cutoff
• Works with the washer's control to maintain proper water level
• Common symptoms of a failing switch: continuous filling, overfilling, or water-level related error codes
• Can also cause cycles to stop or not advance if the machine thinks tank is overfilled

• One overfill control switch

• Disconnect power and water supply before servicing to avoid shock or flooding
• Typically located behind the control console or rear access panel
• Handle wiring connectors gently and secure all connections before testing

This dispenser cover is the replacement lid for a washer dispenser assembly, restoring a secure, functional cover that keeps detergent and fabric softener contained until the wash cycle. It helps prevent spills and keeps the dispenser looking finished. What it does:

• Replaces a cracked, warped, or missing dispenser lid so the dispenser closes properly
• Helps contain detergent and softener to prevent drips and spills onto the washer top
• Restores a flush, finished appearance to the dispenser area
• Works with the dispenser housing to ensure proper release of cleaning agents during cycles

• Disconnect power and water supply before servicing the washer
• Replacement typically installs with clips or screws; keep original fasteners and note their placement
• Handle plastic parts carefully to avoid cracking; align tabs before snapping into place

Color: Biscuit. Size: 13 oz. can. Enamel spray paint.

Size: 8-32 x 1/2 inch.

This replacement lever operates the overflow/level switch assembly to help the washer detect and respond to water level changes. It restores the mechanical action that tells the control when the tub is full. What it does:

• Moves the overflow/level switch mechanism so the machine can sense water level correctly
• Helps address overfilling, continuous filling, or erratic fill behavior caused by a worn or broken lever
• Restores reliable engagement between the float/actuator and the switch
• Works as the mechanical linkage for the overflow/level sensing assembly

• Disconnect power and turn off the water supply before beginning service.
• Access typically requires removing the cabinet or control console; keep fasteners organized.
• Install the lever so it aligns with the switch actuator and float linkage; verify smooth movement after assembly.

This is the rear wheel support for a dishwasher rack. It helps guide and support the rack as it slides in and out, restoring smooth movement and preventing the rack from binding or derailing.

• Supports and guides the rack at the rear during opening/closing
• Helps correct issues like a wobbly, sticking, or misaligned rack
• Can address noisy, rough rack travel caused by a worn support
• Maintains proper rack tracking to reduce derailment

• Disconnect power and water before servicing
• Pull rack forward to access the rear support area
• Depress locking tabs/retainer to remove the old support; press-fit the new support until secure
• Verify smooth rack travel before returning the appliance to service

To order vent gasket use WP8269259.

Color: Bisque

This motor-pump assembly replaces the washer's drain pump to restore reliable water removal and reduce leaks. It mounts to the tub and handles draining so your cycle can finish and clothes can spin out properly. What it does:

• Pumps water out of the washer during drain cycles to allow proper spin and cycle completion
• Helps prevent standing water and reduces the chance of overflow or tub leaks
• Stops humming, grinding, or no-drain symptoms caused by a failed pump motor
• Works as the integrated motor and pump unit that attaches to the washer tub

• Disconnect power and water before servicing; follow all safety precautions
• Basic hand tools required; access may require removing front or rear service panel
• Inspect and reinstall hoses and clamps securely to prevent leaks

This motor-pump is the dishwasher drain pump assembly that removes water from the tub so cycles can complete. Replacing a failed pump restores proper draining and helps prevent standing water and cycle errors. What it does:

• Spins the impeller to pump wastewater out of the dishwasher during drain cycles
• Stops leaks and prevents water from remaining in the tub when working correctly
• Commonly linked to symptoms such as no draining, water left in the tub, or a humming noise during drain
• Works as the integrated motor and pump — not a separate impeller-only part

• Disconnect power and shut off water supply before starting any repair
• Handle with care to avoid damaging the impeller, seals, or electrical connector
• May require removing access panels or the dishwasher kickplate; use appropriate tools