Dishwashers · parts
Maytag MDB8959SKZ0 lower rack: W11778050, wheels separate
For Maytag dishwasher MDB8959SKZ0, the branded Factory Certified Parts model page lists lower dishrack W11778050 and states it is rack only, without wheels. The same exact-model listing names rollers, third-level rack, support rails, basket, and rack adjusters separately. This distinction helps avoid treating a wheel problem as a complete rack order or assuming hardware ships with the assembly.
Safety boundary
- Let dishes and rack cool; stop if the rack is bent, has sharp rusted tines, or the track is damaged.
- Use the exact manual for rack removal and installation; don't force the rack around a jammed wheel.
- Order wheel/roller parts separately when needed; do not rely on the rack assembly description to include them.
Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.
Required identifiers
- Complete Maytag dishwasher model: MDB8959SKZ0
- Lower rack assembly: W11778050
- Separate lower rack roller listed for the exact model: W11551383
Compatibility rules
- The MDB8959SKZ0 model-specific dishrack category lists lower dishrack W11778050 and says “rack only,” without wheels.
- The same listing shows W11551383 lower rack roller separately and identifies the third-level rack and support rails as separate components.
- This page applies only to exact model MDB8959SKZ0; do not transfer fit to another MDB8959 suffix or a similar Whirlpool/KitchenAid model without an exact model result.
- The catalog is operated by RepairClinic and uses the Factory Certified Parts storefront; Whirlpool W Service directs customers to this portal for OEM part lookup, so preserve that provider-source boundary.
Never assume
- W11778050 includes lower rack wheels or a roller kit.
- A roller-only problem requires a new lower rack assembly.
- A model-family prefix MDB8959 proves the same rack fits all suffixes.
- A similar rack width or color proves fit.
Exact Maytag model-to-rack receipt
- Appliance: Maytag dishwasher MDB8959SKZ0.
- Lower dishrack assembly: W11778050.
- Provider page states the assembly is rack only and does not include wheels.
- Lower rack roller shown separately: W11551383.
Rack-only versus complete repair
The exact model catalog also lists third-level rack W11127770 and support/roller parts separately. If the lower rack is intact but doesn't roll, identify the roller or rail. If the rack itself is damaged, W11778050 is the rack-only assembly; verify any hardware needed for the repair separately.
Provider/source boundary
The model and part receipt comes from the Maytag-labeled Factory Certified Parts portal, whose operator is RepairClinic, Inc. Whirlpool's W Service channel directs customers to WhirlpoolParts.com for OEM part lookup. This is not described as a manufacturer-hosted diagram page.