675806 Whirlpool Dishwasher Pump Impeller and seal Kit is a service replacement assembly consisting of the rotating impeller element and the associated shaft seal(s) and sealing hardware used in a dishwasher pump. The impeller is the driven hydraulic component that imparts kinetic energy to water inside the pump housing, while the seal kit components isolate the motor shaft and bearings from the wetted pump cavity to prevent leakage and contamination. Together these parts form the basic wet-end service items for a centrifugal pump used in domestic dishwashing appliances.
Within the appliance the impeller and seal interact directly with the pump housing, drive motor, and the dishwasher’s water distribution and sump systems. The impeller controls flow rate and pressure delivered to spray arms and circulation passages, affecting spray pattern, soil suspension and drainage; the seals prevent water from entering the motor and bearing area, which would or else lead to electrical faults, bearing failure, or corrosion.The component therefore interfaces mechanically with the motor coupling and pump mounting points and hydraulically with inlet and discharge ports, making correct fit and sealing critical to reliable operation.
This article will describe the functional role of the 675806 impeller and seal kit, outline compatibility considerations for identifying the correct pump assembly, list common failure symptoms (such as reduced flow, abnormal noise, vibration, and leakage), and provide practical troubleshooting steps to isolate impeller versus motor or housing faults. It will also cover replacement considerations including required disassembly sequence,inspection of mating surfaces,seal installation techniques,torque and alignment notes,and post-repair verification procedures to help technicians,engineers,and informed appliance owners complete a safe and effective service.
Table of Contents
- Function and Role of the pump Impeller and Seal Assembly in Dishwasher Hydraulics
- How the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit Works inside the Appliance
- Common Failure Symptoms, wear Patterns, and Diagnostic Tests for Impeller and Seal Faults
- Replacement Considerations, Model Compatibility, and Installation Procedures
- Q&A
- The conclusion
Function and Role of the Pump Impeller and Seal Assembly in Dishwasher Hydraulics
The pump impeller converts motor torque into fluid flow inside the dishwasher sump, while the seal assembly isolates the motor and bearings from wash water. The 675806 Whirlpool Dishwasher Pump Impeller and seal Kit contains the rotating impeller and the radial face/lip seal components designed to match the pump-housing geometry and shaft splines used in compatible Whirlpool designs. The impeller’s vane shape and clearance to the diffuser govern delivered flow rate and pressure head; damage, material erosion from abrasive debris, or distortion from heat reduces volumetric efficiency and can cause cavitation, reduced spray pressure, and increased motor current. The seal assembly prevents pressurized wash water from reaching the motor and bearing surfaces; failure of the seal leads to lubricant loss, corrosion of metal parts, and electrical faults in the motor housing.
- Reduced spray pressure or uneven dishwasher cleaning (worn or damaged impeller).
- Visible water or residue around the pump base after a cycle (seal leakage).
- Unusual pump noise or grinding (impeller contact or foreign object damage).
- Elevated motor current draw or overheating (hydraulic restriction or leaking seal causing bearing damage).
Technically, compatibility depends on matching shaft spline profile, impeller outer diameter/clearance, and seal seat geometry; replacing only the impeller without a compatible seal can leave a small misalignment that accelerates wear. In practice, inspect the pump housing for scored faces, verify the impeller spins freely on the shaft with correct axial play, and check the seal mating surface for flatness and burrs before installation. Correct installation restores designed hydraulic performance, prevents seal extrusion under pressure, and maintains motor load within rated values-common repair scenarios include restoring cleaning performance after clogging-induced impeller damage or stopping progressive motor damage by replacing a leaking seal.
| Item | Description |
|---|---|
| Material | High-strength polymer impeller; elastomer/ceramic or rubber composite seal faces chosen for detergent and temperature resistance |
How the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit Works Inside the Appliance
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit contains the rotating impeller and the sealing components that reside inside the dishwasher pump housing and couple to the motor shaft. The impeller converts motor torque into a controlled water flow that feeds the spray arms (or, in some assemblies, assists with drain flow), and it’s blade geometry, clearance to the volute, and balance determine delivered flow rate and pressure. The accompanying seal assembly-typically a dynamic rotary seal with a molded elastomeric element and a hard sealing face-isolates the pump cavity from the motor end bell to prevent water ingress and to maintain proper lubrication and cooling of the motor bearings. Compatibility depends on the pump housing and motor shaft dimensions, so technicians should verify the dishwasher model and pump assembly before installation to ensure correct fit and correct shaft orientation for the impeller.
Inside operation relies on close mechanical tolerances: axial and radial clearance between the impeller and housing control hydraulic efficiency, while the seal relies on a flat, clean sealing face and correct spring preload to prevent leakage under pressure and thermal cycling. Common failure modes are abrasive wear of the impeller vanes, plastic deformation from cavitation or foreign objects, and seal face abrasion or lip hardening leading to slow leaks and eventual motor contamination. Replacing both components as a kit restores hydraulic performance and sealing integrity when the pump housing and motor shaft are not scored or excessively worn; typical service practice includes cleaning the housing, inspecting the shaft for pitting, and verifying that the impeller rotates freely with minimal radial play after installation.
- primary functions: restore water circulation pressure and prevent motor contamination from leaks.
- Symptoms of failure: reduced spray pressure, water pooling under the dishwasher, unusual pump noise, or motor overheating.
- Service notes: replace both impeller and seal together, inspect housing/shaft, and ensure correct seating and torque during assembly.
| Item | Description |
|---|---|
| Impeller | Molded thermoplastic vane assembly; provides flow and pressure; sensitive to clogging and cavitation. |
| Seal | Rotary dynamic seal (elastomer + hard face); prevents water entry to motor and maintains lubrication barrier. |
| Compatibility | Designed for specific Whirlpool pump housings; confirm dishwasher model/pump ID before ordering. |
Common Failure Symptoms,Wear Patterns,and Diagnostic Tests for Impeller and Seal Faults
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit replaces the rotating impeller and sealing elements that establish hydraulic flow and prevent water ingress into the pump motor and bearings. The impeller converts motor torque into fluid motion; proper vane geometry and radial clearance determine delivered flow and pressure. Seals (an elastomeric O‑ring and a mating mechanical face in many designs) maintain a water-tight barrier at the shaft interface. When clearances grow, vanes chip, or seal faces score, the pump shows measurable loss of throughput, increased axial play, and elevated bearing or motor stress, so technicians commonly replace both the impeller and seal together to restore original clearances and prevent secondary motor damage.
Common failure symptoms and wear patterns are predictable and can be validated with a few targeted diagnostic checks: visual inspection of the impeller for chipped or missing fins, inspection of seal faces for scoring or extrusion, and measurement of shaft axial/radial play. Practical bench and in-situ tests include a dye-leak test to confirm seal leakage into the motor cavity, a timed-flow test (collect known volume while the pump runs to quantify flow rate), and a motor-current draw check with a clamp meter-elevated current under no-load conditions indicates hydraulic binding or failing bearings. Typical symptoms to watch for are listed below, followed by a concise reference for quick troubleshooting.
- Reduced wash pressure or long cycle drain times – often caused by eroded impeller vanes or clogged intake.
- audible grinding, cavitation, or high-frequency vibration – indicates damaged fins or foreign object contact.
- Visible water in the motor cavity or oil/burn smell - consistent with seal face failure and water ingress.
- Intermittent pump stop/fuse trips or elevated motor current – suggests shaft binding, bearing wear, or trapped debris.
| Item | Description |
|---|---|
| Impeller wear | Broken or eroded vanes reduce volumetric flow and cause cavitation/noise; inspect for missing material and balance issues. |
| Seal failure | Scored or hardened seal faces allow leakage into motor cavity and accelerate bearing corrosion and electrical faults. |
| Diagnostic tests | Dye-leak test, timed flow measurement, shaft play check, and clamp‑meter motor current readings provide quantitative confirmation. |
Replacement considerations, Model Compatibility, and Installation Procedures
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit replaces the rotating impeller and the stationary shaft seal inside the wash pump assembly; together these components control water circulation and maintain the pressure differential between the motor/magnet assembly and the wetted pump cavity. The impeller transfers torque into water flow and will produce reduced flow or cavitation symptoms when worn, while a degraded seal allows leakage into the motor cavity and typically causes oiling, motor overheating, or electrical faults. For compatibility,match the kit to the pump housing geometry,impeller hub diameter,and seal bore rather than relying solely on model years: many Whirlpool-built pumps share common layouts,but variations in mounting flange,secondary retention clips,and motor shaft interface require inspection of the pump module or OEM part number before ordering.
Installation requires basic appliance service skills and attention to seal orientation and debris management. Power must be disconnected and water drained, than remove the lower assembly and access the pump housing; note impeller rotation and any spacer or shim locations before disassembly.Clean the pump cavity and inspect the motor shaft and bearing surfaces for wear – replacing the impeller and seal on a scored shaft will not stop leaks. After installing the new impeller and lip seal (seal lip toward the wet side),reassemble retaining clips and gaskets,run a controlled test cycle and observe for leaks and expected flow patterns; if flow is weak but no leaks are present,verify impeller clearance and that the sump inlet screens are free of obstructions.
- Quick checks before ordering: confirm pump housing shape,impeller hub diameter,and seal bore dimensions.
- Common symptoms indicating replacement: reduced spray pressure, grinding noises from pump, or oil/dispersion near the motor area.
- Post-install verification: leak test at rest and during a short wash cycle; inspect motor current for abnormal draw.
| item | Description |
|---|---|
| Impeller | Polymer blade assembly that converts shaft rotation into pump flow; inspect for cracks and eroded blade edges. |
| Seal | Elastomer/static and dynamic interface that prevents fluid entry to the motor; install with correct orientation and clean mating surfaces. |
Q&A
What is the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit and what parts are included?
The 675806 kit is a replacement service kit for the circulation pump in many Whirlpool-family dishwashers. It typically contains the plastic impeller (the rotating blade that moves wash water) and the pump mechanical seal(s) and/or O-rings needed to seal the impeller shaft to the pump housing. Some kits may also include small gaskets or a retaining clip depending on the supplier.Always check the kit contents listing before purchase.
How do I know if the impeller or seal in my dishwasher needs to be replaced?
Common symptoms are a dishwasher that does not spray or has weak spray pressure (worn or broken impeller), loud grinding or scraping noises from the lower area (broken impeller or foreign object), or water leaking from the bottom of the machine (worn or failed mechanical seal/O-ring). Inspecting the pump area for visible damage or debris and checking for movement/play on the pump shaft will confirm the diagnosis.
Which dishwasher models is the 675806 kit compatible with?
The 675806 kit is used across a range of Whirlpool,Maytag,Kenmore and other brands in the Whirlpool family. Compatibility varies by model and production date, so you should verify fitment by checking your dishwasher’s model number against the parts catalog or the vendor’s compatibility list before ordering.
Can I replace just the impeller and seal, or do I need to replace the whole pump assembly?
if the motor and pump housing are in good condition, replacing only the impeller and seal is common and cost-effective. However, if the motor shaft is scored, bent, or the pump housing is cracked or excessively corroded, the whole pump/motor assembly should be replaced because new seals will not hold properly on damaged surfaces.
How difficult is installation and what tools and precautions are needed?
Installation is a moderate DIY job. Basic hand tools are usually sufficient: screwdrivers, nut drivers or sockets, pliers, and possibly a putty knife. Precautions: disconnect electrical power and water supply, drain the dishwasher, remove the lower rack and possibly the spray arm to access the sump/pump area, and work on a toweled surface to catch water. carefully note or photograph the orientation and placement of parts during disassembly. If you are not comfortable working with appliance wiring or removing the dishwasher, contact a qualified technician.
Any tips to ensure a leak-free seal after replacing the impeller and seal?
Clean mating surfaces thoroughly of old sealant,debris and mineral deposits before installing the new seal. Install seals and O-rings in the correct orientation and seat them fully. A light coating of food-safe silicone grease (or the manufacturer’s recommended lubricant) on O-rings helps them seat and prevents pinching. After reassembly, run a short test cycle and check carefully for leaks around the pump housing and under the dishwasher.
What causes pump impeller or seal failure and how can I prevent it?
Common causes include debris (broken glass, silverware, hard food particles) jamming or chipping the impeller, age-related wear, overheating, or mineral buildup. Leaks frequently enough occur when seals dry out, harden, or the shaft/housing become worn. Preventive measures: remove food debris before loading, use the correct detergents and rinse aids, avoid running the dishwasher with sharp broken items, and periodically inspect and clean the filter and sump area.
Is the 675806 kit OEM and are aftermarket parts acceptable?
675806 is available as an OEM Whirlpool part and as aftermarket equivalents. OEM parts match factory specifications and usually come with manufacturer warranty support.Quality aftermarket parts can be less expensive but vary in fit and durability. If choosing aftermarket, buy from a reputable supplier, verify part compatibility, and keep warranty/return options in case of fitment issues.
The Conclusion
The 675806 whirlpool Dishwasher Pump Impeller and Seal Kit plays a central role in the appliance’s wash and drainage functions by maintaining proper water circulation and sealing the pump assembly. When the impeller is worn or the seal is compromised, performance declines and the risk of leaks, poor cleaning, and motor strain increases. Replacing these components with the correct kit helps restore intended hydraulic efficiency and prevents collateral damage to surrounding parts.
Accurate diagnosis is essential before any repair: distinguishing between pump-related issues and other causes of poor performance (such as clogged filters, circulation arms, or electrical faults) ensures the replacement is necessary and effective. When pump impeller wear or seal failure is confirmed,timely replacement reduces the likelihood of escalating damage and can be more cost-effective than addressing secondary failures later.
the 675806 whirlpool Dishwasher Pump Impeller and Seal Kit is a critical maintenance and repair item for restoring reliable operation and preventing leaks and motor stress. proper troubleshooting to confirm the fault, followed by correct installation of the appropriate replacement parts-or consultation with a qualified technician when needed-offers the best path to safe, long-term dishwasher performance.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
Revolff Home Services
for expert appliance repair services.
For local appliance service information see
Dryer repair Henderson
.
Replacement parts for many appliance models can also be found at
Reliable-Parts-Hub
.
Recommended Products
The Blincoo Elite 48" Heavy Duty Dog Rope Toy is made for large breeds that love tug-of-war, chewing, and active play. Strong, simple, and fun for powerful dogs.
Shop on TikTok