Maytag Dishwasher MDC4100AWE Leaking

The Whirlpool Dishwasher Door Gasket is an OEM part for Whirlpool dishwashers. It provides a watertight seal around the door to prevent water leaks during the wash cycle.  With a length of 66.5 inches, this part forms an airtight seal around the dishwasher door, preventing water leaks during operation.

Causes of a bad door gasket can include cracks and breaks developing from repeated exposure to temperature changes during wash cycles. Over time, rubber perishes leaving gaps that compromise the seal.

Symptoms of a failing door gasket:

• Water pools on the floor in front of the dishwasher
• Dishes remaining wet after a full cycle
• Visible cracks or tears in the rubber

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

The Foam Insulation Strip is an OEM replacement part for Whirlpool built-in dishwashers. Located sealing the door perimeter, this compressible foam strip cushions closing motions while blocking entry of outside air and moisture during cycles.

Causes result from compression damage during repeated door shuts detaching the adhesive backing. Exposure to penetrating steam can also degrade polyurethane material integrity.

Symptoms of failure involve:

• Gaps allowing air and heat loss to compromise drying
• Drafts carrying soil and residue back into cleaned dishes
• Accelerated tub corrosion from an uninsulated interior environment

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

This small rubber grommet seals the opening around the dishwasher's detergent/rinse-aid dispenser, helping prevent leaks and moisture intrusion so the dispenser operates reliably throughout the wash cycle.

• Seals the dispenser passage to keep water from leaking into or out of the dispenser cavity
• Helps ensure proper detergent or rinse-aid dispensing
• Can reduce moisture-related corrosion or staining in the dispenser area

• Disconnect power and turn off water before servicing
• Remove inner door panel to access the dispenser assembly
• Note grommet orientation; seat fully to ensure a watertight seal
• Inspect surrounding surfaces for debris or damage before reassembly

This dishwasher water deflector redirects spray back into the tub at the front edge, helping prevent splash-over and leaks during cycles. Replace a cracked, warped, or missing deflector to keep floors dry and wash performance consistent.

• Directs wash water away from the door opening and front corners
• Helps reduce leaks and puddles at the bottom front of the dishwasher
• Restores proper containment when the original deflector is deformed, loose, or missing
• Common symptoms include water on the floor at the front, drips during cycles, or visible damage to the deflector

• Disconnect power and turn off the water supply before servicing
• Open the door to access the front/tub area; remove the old deflector
• Clean the mating area and seat the new deflector fully and evenly
• Run a short test cycle and check for leaks

This O-ring creates a watertight seal in your dishwasher's wash or drain system, helping prevent leaks and maintain proper water pressure. Replace a brittle, flattened, or damaged ring to restore a reliable, leak-free connection.

• Provides a watertight seal between mating parts such as pump housings, fittings, or hose joints
• Helps stop drips and seepage caused by a worn or deformed seal
• Common symptoms: water under the unit, moisture around pump/tubing connections, or leaks after reassembly
• Replace if the old ring is cracked, cut, flattened, or hardened

• Disconnect power and turn off the water supply before servicing
• Place a towel or shallow pan to catch residual water
• Clean the groove and mating surfaces; lightly moisten or use a manufacturer-approved lubricant to help the ring seat without pinching
• Seat evenly, reassemble without overtightening, and run a short test cycle to check for leaks

The Water Inlet Valve is an OEM part for Whirlpool dishwashers. Located at the back of the dishwasher, this valve controls the flow of water into the dishwasher during wash cycles.

Causes of a bad water inlet valve can include mineral buildup accumulating inside the valve over many uses, wear and tear on the valve internals from constant opening and closing, or electronic component malfunctions.

Symptoms of a bad water inlet valve include:

• No water entering the dishwasher when starting cycles
• Water level issues where too much or too little water enters the tub
• A leak developing around the valve area or connection line

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

The Hose Clamp is an OEM part for Whirlpool appliances. It secures hoses in place, ensuring a tight connection and preventing leaks in various systems such as washing machines, dishwashers, and refrigerators. This clamp is crucial for maintaining the integrity of the water or air lines it secures.

Causes of a bad hose clamp include wear and tear over time, exposure to water and detergents, or mechanical stress from repeated tightening and loosening.

Symptoms of a bad hose clamp include:

• Leaks at the hose connection points
• Hoses slipping off the connections
• Visible rust or damage on the clamp
• Reduced appliance efficiency due to leaks

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

The Dishwasher Adapter is an OEM part for Whirlpool dishwashers. It serves as a connector, allowing various components of the dishwasher to interface correctly and ensuring proper water flow and pressure throughout the appliance.

Cracks, wear, or damage to the adapter can cause significant issues with the dishwasher's performance.

Symptoms of a bad Dishwasher Adapter include:

• Leaks under or around the dishwasher
• Poor water pressure during cycles
• The dishwasher failing to fill or drain correctly
• Visible cracks or damage to the adapter

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

This coupler and hose assembly connects your portable dishwasher to the sink faucet during operation. It supplies fresh water and returns drain water to the sink, helping stop leaks and restore reliable filling and draining.

• Provides a quick-connect link to a compatible faucet adapter for temporary hookup
• Carries incoming water to the dishwasher and routes drain water back to the sink
• Maintains a secure, leak-resistant seal during wash and drain cycles
• Replace if the coupler won't attach or stay on the faucet, hoses are cracked/kinked, or you see leaks and poor fill/drain performance

• Unplug the appliance and turn off water before service
• Verify the faucet adapter and O-rings are in good condition; hand-tighten only—do not overtighten with tools
• Route hoses to avoid kinks and sharp bends
• Open the faucet slowly and run a short test cycle; check all connections for leaks

The Lower Washarm is an OEM replacement part for Whirlpool dishwashers. Positioned at the bottom of the dishwasher tub, it rotates during the wash cycle, distributing water and detergent evenly across the lower rack. 

Over time, wash arms can become clogged with food debris or mineral deposits, reducing water flow. Physical damage such as cracks or warping can also impede the wash arm's rotation and affect its cleaning performance.

Color: Gray

Symptoms of a faulty lower wash arm include:

• Inadequate cleaning of dishes on the lower rack
• Uneven or inconsistent water spray
• Clogged or obstructed spray nozzles
• The arm not spinning or rotating correctly

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

This flexible drain hose routes wastewater from the appliance to the household drain so your appliance can empty properly. Durable, service-ready replacement that restores proper draining and helps prevent backups. What it does

• Carries wastewater from the appliance pump to the household drain line.
• Restores drainage when the original hose is cracked, clogged, kinked, or leaking.
• Helps eliminate standing water, slow drains, and related error codes tied to poor drainage.
• Works with standard hose clamps and common drain fittings used on compatible appliances.

• Always disconnect power to the appliance and turn off water supply before servicing.
• Inspect hose routing and clamps; replace clamps if corroded or damaged.
• Avoid sharp bends and kinks when routing the hose; secure with clamps or ties as needed.
• After installation, run a short drain cycle and inspect for leaks before returning the appliance to regular use.

Upper

This hose clamp secures a hose connection to prevent leaks and keep your appliance running smoothly. It provides a tight, reliable hold on the hose fitting so water or air stays contained during operation.

• Tightens around a hose and fitting to maintain a secure seal
• Helps stop drips, seepage, or loose connections
• Common fix when you see moisture around a hose joint
• Useful if a clamp is rusted, stretched, or no longer holding tension

• Unplug power and shut off water (if applicable) before servicing
• Note clamp position/orientation before removal
• Use appropriate screwdriver or nut driver to tighten evenly
• Do not overtighten—ensure a snug, leak-free seal without damaging the hose

Includes: Upper and lower impellers, impeller screw with o-ring, motor shaft seal with install tool, and 3 o-rings needed to repair pump.

This small retaining clip secures components in place inside the appliance, helping prevent movement, vibration, and premature wear. Replace a bent, fatigued, or missing clip to restore a solid, factory-tight hold.

• Holds panels, brackets, or tubing securely in their mounts
• Helps maintain alignment to reduce rattles, rubbing, or intermittent issues
• Common signs of failure: missing clip, loose fit, buzzing/vibration, parts that won't stay seated
• Restores proper retention after service, transport, or vibration-related fatigue

• Disconnect power and shut off gas/water before servicing
• Note the original clip's orientation; remove with needle-nose pliers
• Seat the new clip fully—do not over-bend; spring tension provides the hold
• Test operation before reassembly