Whirlpool Dishwasher Diffuser WP8579251, Fixes Poor cleaning
Genuine Whirlpool dishwasher diffuser (disk valve diverter) that directs wash-water flow between spray arms and wash zones.
Confirm your full appliance model number before ordering.
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✅ Cross Reference Information
Common Symptoms
- Weak or uneven spray/water distribution
- Poor cleaning performance
- Unusual diverter/pump noise when the diffuser drive port is worn or rounded
Check Before Replacing
- Disconnect power, then inspect the diffuser's diverter-motor drive port for visible rounding or damage.
- Confirm the dishwasher is experiencing uneven water routing or reduced spray performance before attributing the issue to the diffuser.
Pro Tip
Part Details
Installation Notes
- Disconnect electrical power and shut off the dishwasher water supply before service.
- After service, run a short cycle and check for correct water routing and leaks.
Verified Compatible Models
465.13343600, 587.15263900, 665.13153K701, 665.13213K901, 665.13593K600, 665.13742K601, 665.13742K603, 665.13743K601, 665.13743K603, 665.13749K601, 665.15632000, 665.15955793, 665.15979992, 665.16493300, 665.17829000, 66513122K703, 66513152K701, 66513929K017, 66513943K014, 66513944K015, 66513963K017, 66513966K012, 66513973K013, 66577969K701, KUDE40FXPA1, KUDE70FVSS2, KUDE70FXSS2, 665.13183K802, 665.13206K902, 665.13923K010, KUDE20IXBL1, KUDE40FXSS4, KUDE60HXSS2
Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.
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Kitchener, Ontario N2E 1W8
