Find genuine dishwasher pump parts designed to restore proper water circulation and drainage. Whether your dishwasher is not draining, dishes remain dirty, water is not reaching the spray arms, or the appliance is making unusual noises, a worn pump component may be responsible.
This collection includes dishwasher drain pumps, circulation pumps, pump motors, impellers, housings, seals, and complete pump assemblies. Use your full dishwasher model number to identify parts designed for your exact appliance.
What Do Dishwasher Pump Parts Do?
Dishwasher pump parts move water through the appliance during washing and remove dirty water at the end of each cycle.
Most dishwashers use separate pumping functions:
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The circulation pump sends water through the spray arms.
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The drain pump removes used water from the dishwasher tub.
Some models use separate motors and pump housings, while others use complete pump and motor assemblies. The design varies by dishwasher brand, model, and production series.
Common dishwasher pump parts include:
- Drain pumps
- Circulation pumps
- Wash pumps
- Pump and motor assemblies
- Pump motors
- Pump housings
- Impellers
- Pump seals and gaskets
- Sump assemblies
- Check valves
- Pump covers
- Mounting brackets
- Electrical connectors
Check each product listing to confirm whether the component is sold individually or as part of a complete assembly.
How Do I Find the Right Dishwasher Pump Part?
Search using the complete dishwasher model number to locate compatible pump components.
The model number is usually printed on a label around the dishwasher door or tub opening. Open the door and check the left edge, right edge, upper frame, or inner door panel.
When comparing dishwasher pump parts, confirm:
- Dishwasher brand and model compatibility
- Manufacturer part number
- Drain or circulation function
- Electrical connector style
- Voltage and motor specifications
- Hose connection size and position
- Mounting-tab placement
- Pump housing shape
- Included seals or gaskets
- Whether the part is a motor, pump, or complete assembly
Dishwasher pumps are not universal. Similar-looking pumps may have different electrical ratings, connectors, hose outlets, or mounting points.
What Types of Dishwasher Pump Parts Are Available?
The correct replacement depends on whether the dishwasher has a drainage problem or a water-circulation problem.
Dishwasher Drain Pumps
A dishwasher drain pump removes dirty water from the tub and sends it through the drain hose.
A damaged or blocked drain pump may cause the following:
- Water to remain in the dishwasher
- Slow or incomplete draining
- Humming during the drain cycle
- Leaking near the pump
- Grinding or rattling noises
Before replacing the pump, inspect the filter, drain hose, and garbage disposal connection for blockages.
Dishwasher Circulation Pumps
A circulation pump, also called a wash pump, moves water from the sump to the spray arms during the wash cycle.
A failing circulation pump may cause:
- Dishes to remain dirty
- Weak spray-arm movement
- Low water pressure inside the tub
- Unusual humming or grinding noises
- Wash cycles that run without effective cleaning
The dishwasher may still fill and drain normally even when the circulation pump is not working.
Dishwasher Pump Motors
The pump motor powers the impeller that moves water through the dishwasher.
Some models allow the motor to be replaced separately. Other dishwashers require replacement of the complete pump and motor assembly.
Dishwasher Pump and Motor Assemblies
A pump and motor assembly may include the motor, housing, impeller, and related seals in one unit.
Replacing the complete assembly can be useful when multiple pump components are worn or when individual internal parts are not sold separately.
Dishwasher Impellers
The impeller is a rotating component that pushes water through the pump.
A cracked, loose, or obstructed impeller may reduce water flow or create grinding and rattling sounds. Some impellers are replaceable, while others are built into the pump assembly.
Dishwasher Pump Seals and Gaskets
Pump seals prevent water from leaking where the pump connects to the dishwasher sump or motor.
A worn, pinched, or incorrectly installed seal may cause water to collect underneath the dishwasher.
Dishwasher Sump and Pump Housings
The sump collects water at the bottom of the dishwasher and directs it toward the pump.
Cracks, damaged mounting points, or worn seals around the sump can cause leaks or reduce circulation performance.
What Problems Can Dishwasher Pump Parts Fix?
Replacing a damaged pump component can correct drainage, cleaning, noise, and leakage problems.
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Dishwasher Is Not Draining
Cause: Standing water may indicate a blocked filter, clogged hose, jammed drain pump, or failed pump motor.
Fix: Inspect the drainage path before replacing the pump. If the pump receives power but does not operate, replacement may be required.
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Dishwasher Drains Slowly
Cause: A partial blockage in the drain hose, pump housing, or check valve can restrict water flow. A worn impeller can also reduce pumping performance.
Fix: Inspect for restrictions and worn pump components.
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Dishwasher Fills but Does Not Wash
Cause: If the dishwasher fills normally but the spray arms do not move, the circulation pump may not be sending water through the wash system.
Fix: Inspect the circulation pump and related wash components.
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Dishes Remain Dirty After a Cycle
Cause: Poor cleaning can be caused by a failing circulation pump, blocked spray arms, clogged filters, or insufficient water entering the appliance.
Fix: Inspect these related components before selecting a replacement pump.
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Dishwasher Makes a Humming Noise
Cause: A humming pump may be jammed by food debris, glass, or another small object. It may also indicate that the motor is receiving power but cannot turn.
Fix: Disconnect power before inspecting the pump area.
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Dishwasher Makes a Grinding or Rattling Noise
Cause: Debris may be trapped around the impeller, or the impeller and motor bearings may be worn.
Fix: Stop using the dishwasher if the noise becomes severe and inspect the pump components.
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Dishwasher Leaks Underneath
Cause: A damaged pump seal, cracked housing, loose hose connection, or failed sump gasket may allow water to leak below the appliance.
Fix: Locate the exact source of the leak before ordering a replacement.
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The Dishwasher Does Not Spray Water
Cause: A blocked spray arm, clogged filter, or failed circulation pump may prevent proper water movement.
Fix: Confirm that the dishwasher is filling with water before inspecting the pump.
What Is the Difference Between a Drain Pump and a Circulation Pump?
A drain pump removes water from the dishwasher, while a circulation pump sends water through the spray arms.
| Pump Type |
Main Function |
Common Failure Symptoms |
| Drain pump |
Removes dirty water from the tub |
Standing water, slow draining, or humming during the drain cycle |
| Circulation pump |
Moves water through the spray arms |
Poor cleaning, weak spray action, or no wash noise |
| Pump motor |
Powers water movement |
Humming, no circulation, or intermittent operation |
| Complete pump assembly |
Combines several pump components |
Leaks, noise, or multiple circulation problems |
Identifying when the problem occurs can help narrow down the faulty pump. Drain pump problems usually appear at the end of the cycle, while circulation pump problems occur during washing.
Why Choose OEM Dishwasher Pump Parts?
OEM dishwasher pump parts are designed to match the original appliance specifications, connections, and water-flow requirements.
Dishwasher pumps must fit securely and operate at the correct electrical and mechanical specifications. An incorrect pump may not connect properly, may leak, or may provide inadequate water pressure.
Benefits of choosing OEM dishwasher pump parts include:
- Model-specific compatibility
- Correct electrical connectors
- Proper hose connection placement
- Accurate mounting dimensions
- Correct water-flow performance
- Compatible seals and gaskets
- Reliable fit with the existing sump
- No unnecessary modification
Generic pumps may appear similar but can differ in motor rating, connector type, housing size, or outlet position.
How Do I Know Which Dishwasher Pump Is Faulty?
The stage of the cycle where the problem occurs can help identify the pump that needs inspection.
Use these symptom-to-part matches as a starting point:
| Dishwasher Problem |
Part to Inspect |
| Water remains after the cycle |
Drain pump, filter, or drain hose |
| The dishwasher fills but does not spray |
Circulation pump or wash motor |
| Weak spray-arm movement |
Circulation pump, impeller, or filter |
| Humming during drainage |
Drain pump or trapped debris |
| Grinding during washing |
Circulation pump or impeller |
| Water leaking underneath |
Pump seal, gasket, sump, or housing |
| Dishwasher drains intermittently |
Drain pump, wiring, or control |
| Dishes remain dirty |
Circulation pump, spray arm, or filter |
Several dishwasher problems can produce similar symptoms. Test or inspect related components before replacing the pump.
How Do I Replace Dishwasher Pump Parts?
Dishwasher pump replacement usually requires disconnecting power and water, removing access panels, and reaching the pump beneath the tub.
Before beginning a pump repair:
- Disconnect the dishwasher from power
- Turn off the water supply
- Remove standing water from the tub
- Wear work gloves
- Protect the floor with towels
- Photograph wiring and hose positions
- Review model-specific instructions
- Keep replacement seals and clamps ready
Depending on the dishwasher design, the appliance may need to be pulled out of the cabinet and placed on its back or side.
Drain pumps are often accessed from underneath the dishwasher. Circulation pumps and sump assemblies may require additional disassembly inside or below the tub.
Always install new seals or gaskets when recommended. Reusing a worn or compressed seal may cause leaks after installation.
After replacing the part, run a short cycle and inspect all pump and hose connections for leaks.
Search Dishwasher Pump Parts by Model Number
Use the full dishwasher model number to narrow the collection to compatible drain pumps, circulation pumps, motors, and pump assemblies.
Before ordering, compare:
- Manufacturer part number
- Product photographs
- Electrical connectors
- Hose outlet position
- Mounting tabs
- Housing shape
- Included seals and hardware
- Model compatibility
Include every letter, number, and revision code shown on the dishwasher model label. Similar models may use different pump designs.
